2004 Mercedes-benz G Class Owners Manual

Never operate radio transmitters equipped with a built-in or attached antenna (i.e. with- out being connected to an external antenna) from inside the vehicle while the engine is running. Doing so could lead to a malfunc- tion of the vehicle’s electronic system, pos- sibly resulting in an accident and/or personal injury.

Radio transmitters, such as a portable tele- phone or citizens band unit should only be used inside the vehicle if they are connect- ed to an antenna that is installed on the outside of the vehicle. Refer to the radio transmitter operation in- structions regarding use of an external an- tenna.

221

Operation Driving instructions

Driving abroad

Catalytic converter

Abroad, there is a widely-spread Mercedes-Benz service network at your disposal. If you plan to drive into areas which are not listed in the index of your Mercedes-Benz Light Truck Center directo- ry, you should request pertinent informa- tion from your authorized Mercedes-Benz Light Truck Center.

Your Mercedes-Benz is equipped with monolithic-type catalytic converters, an important element in conjunction with the oxygen sensors to achieve substantial con- trol of the pollutants in the exhaust emis- sions. Keep your vehicle in proper operating condition by following our rec- ommended maintenance instructions as outlined in your Service Booklet.

To prevent damage to the catalytic con- verters, use only premium unleaded gasoline in this vehicle. Any noticeable irregularities in engine operation should be repaired promptly. Otherwise, excessive unburned fuel may reach the catalytic converter, causing it to overheat and start a fire.

Warning!

As with any vehicle, do not idle, park or op- erate this vehicle in areas where combusti- ble materials such as grass, hay or leaves can come into contact with the hot exhaust system, as these materials could be ignited and cause a vehicle fire.

Emission control

Certain engine systems serve to keep the toxic components of the exhaust gases within permissible legal limits. These systems, of course, will function properly only when maintained strictly ac- cording to factory specifications. Any ad- justments on the engine should, therefore, be carried out only by qualified Mercedes-Benz Light Truck Center autho- rized technicians. Engine adjustments should not be altered in any way. More- over, the specified service jobs must be

222

Operation Driving instructions

carried out regularly according to Mercedes-Benz servicing requirements. For details refer to the Service Booklet.

Warning!

Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide, and inhaling it can cause uncon- sciousness and lead to death.

Do not run the engine in confined areas (such as a garage) which are not properly ventilated. If you think that exhaust gas fumes are entering the vehicle while driving, have the cause determined and corrected immediately. If you must drive under these conditions, drive only with at least one win- dow fully open at all times.

Coolant temperature

During severe operating conditions and stop-and-go city traffic, the coolant tem- perature may rise to approx. 248°F (120°C). The engine should not be operated with the coolant temperature above 248°F (120°C). Doing so may cause serious en- gine damage which is not covered by the Mercedes-Benz Limited Warranty.

Excessive coolant temperatures trigger a warning message in the multifunction display (컄 page 269).

Warning!

앫 Driving when your engine is badly over-

heated can cause some fluids which may have leaked into the engine com- partment to catch fire. You could be se- riously burned.

앫 Steam from an overheated engine can cause serious burns and can occur just by opening the hood. Stay away from the engine if you see or hear steam com- ing from it.

Turn off the engine, get out of the vehicle and do not stand near the vehicle until the engine has cooled down.

223

Operation At the gas station 왔 At the gas station Refueling

Warning!

Gasoline is highly flammable and poisonous. It burns violently and can cause serious inju- ry. Whenever you are around gasoline, avoid inhaling fumes and skin contact, extinguish all smoking materials. Never allow sparks, flame or smoking materials near gasoline!

Failure to remove the fuel cap slowly could result in personal injury.

The fuel filler flap is located on the right-hand side of the vehicle towards the rear. Locking/unlocking the vehicle with the remote control automatically locks/unlocks the fuel filler flap.

224

Warning!

Overfilling of the fuel tank may create pres- sure in the system which could cause a gas discharge. This could cause the gas to spray back out when removing the fuel pump noz- zle, which could cause personal injury.

왘 Replace the fuel cap by turning it to the

right. You should hear the fuel filler cap en- gage.

왘 Close the fuel filler flap.

The fuel filler cap is tethered to the fuel filler neck. Do not drop the cap. It could damage the vehicle paint finish. When refueling the vehicle, make cer- tain that no gasoline comes into con- tact with plastic tail lamp to prevent damaging the lens.

왘 Turn off the engine. 왘 Remove the SmartKey from the starter

switch.

왘 Open the fuel filler flap by pushing at

the point indicated by the arrow.

왘 Turn the fuel cap to the left and hold on to it until possible pressure is released. 왘 Take off the cap and set it in the recess

on the fuel filler flap.

왘 To prevent fuel vapors from escaping into open air, fully insert filler nozzle unit.

왘 Only fill your tank until the filler nozzle unit cuts out – do not top up or overfill.

i Use only premium unleaded gasoline with a minimum Posted Octane Rating of 91 (average of 96 RON/86 MON). Information on gasoline quality can normally be found on the fuel pump. More information on gasoline can be found in the Factory Approved Service Products pamphlet.

Leaving the engine running and the fuel cap open can cause the ? malfunc- tion indicator lamp to illuminate. See also “Practical hints” section (컄 page 256).

Check regularly and before a long trip

Brake fluid

Operation At the gas station

If you find that the brake fluid in the brake fluid reservoir has fallen to the minimum mark or below, have the brake system checked for brake pad thickness and leaks immediately. Noti- fy an authorized Mercedes-Benz Light Truck Center immediately. Do not add brake fluid as this will not solve the problem. For more information, see “Practical hints” (컄 page 254) .

Windshield/rear window washer sys- tem and headlamp cleaning system For more information on refilling the reser- voir, see “Windshield/rear window washer system and headlamp cleaning system” (컄 page 234).

225

1 Coolant 2 Brake fluid

Opening the hood, see (컄 page 227).

Coolant For normal replenishing, use water (pota- ble water quality). For more information, see “Coolant level” (컄 page 232) and see “Fuels, coolants, lubricants, etc.” (컄 page 333).

Operation At the gas station

Engine oil level For more information on engine oil, see (컄 page 228).

Vehicle lighting Check function and cleanliness. For infor- mation on replacing light bulbs, see “Re- placing bulbs” (컄 page 295). For more information, see “Exterior lamp switch” (컄 page 104).

Tire inflation pressure For more information, see “Checking tire inflation pressure” (컄 page 237).

226

왔 Engine compartment Hood

Warning!

Do not pull the release lever while the vehi- cle is in motion. Otherwise the hood could be forced open by passing air flow.

Opening The pull release lever is under the driver’s side of the instrument panel.

왘 Pull release lever 1 upward.

The hood is unlocked.

To avoid damage to the windshield wip- ers or hood, open the hood only with wipers in parked position.

1 Release lever

2 Safety hook 왘 Lift hood up slightly. 왘 Pull safety hook 2 in direction of ar-

row and open hood.

Operation Engine compartment

Warning!

To help prevent personal injury, stay clear of moving parts when the hood is open and the engine is running. Make sure the hood is properly closed before driving. When closing the hood, use extreme caution not to catch hands or fingers. The radiator fan may continue to run for ap- proximately 30 seconds or even restart af- ter the engine has been turned off. Stay clear of fan blades.

Warning!

If you see flames or smoke coming from the engine compartment, or if the coolant tem- perature display indicates that the engine is overheated, do not open the hood. Move away from vehicle and do not open the hood until the engine has cooled down. If neces- sary, call the fire department.

227

Operation Engine compartment

Warning!

Closing

The engine is equipped with a transistorized ignition system. Because of the high voltage, it is dangerous to touch any components (ig- nition coils, spark plug sockets, diagnostic socket) of the ignition system 앫 with the engine running 앫 while starting the engine 앫 if ignition is “on” and the engine is

turned manually

Warning!

Be careful that you do not close the hood on anyone.

왘 Lower hood and let it drop into lock from a height of approximately 0.7 ft (20 cm). The hood will lock audibly.

왘 Check to make sure the hood is fully

closed. If you can raise the hood at a point above the headlamps, then it is not properly closed. Open it again and let it drop with somewhat greater force.

Do not push the hood closed manually, as this could damage it.

Engine oil

The amount of oil your engine needs will depend on a number of factors, including driving style. Higher oil consumption can occur when 앫 the vehicle is new 앫 the vehicle is driven frequently at

higher engine speeds

Engine oil consumption checks should only be made after the vehicle break-in period.

Do not use any special lubricant addi- tives, as these may damage the drive assemblies. Using special additives not approved by Mercedes-Benz will restrict your warranty entitlement. More information on this subject is available at any Mercedes-Benz Light Truck Center.

228

Checking engine oil level with the control system When checking the oil level the vehicle must 앫 be parked on level ground 앫 be at normal operating temperature 앫 have been stationary for at least five

minutes with the engine turned off

To check the engine oil level via the multifunction display, do the following: 왘 Turn the SmartKey in the starter switch

to position 2.

The standard display (컄 page 115) should appear in the multifunction display. 왘 Press button k or j on the steering wheel until the following message is seen in the multifunction display: MEASURE. CORRECT ONLY IF VEH. LEVEL

After about three seconds this message is displayed:

ENGINE OIL LEVEL MEASURING NOW

One of the following messages will subsequently appear in the indicator: 앫 ENGINE OIL LEVEL

OK

앫 ADD 1.0 Qt. TO

REACH MAX. OIL LEVEL!

(Canada: 1.0 LITER)

앫 ADD 1.5 Qts. TO

REACH MAX. OIL LEVEL!

(Canada: 1.5 LITERS)

앫 ADD 2.0 Qts. TO

REACH MAX. OIL LEVEL!

(Canada: 2.0 LITERS)

Operation Engine compartment

If you want to interrupt the checking procedure, press the k or j button on the multifunction steering wheel.

왘 If necessary, add engine oil. For adding engine oil see (컄 page 231). For more information on engine oil, see the “Technical data” section (컄 page 333) and (컄 page 334).

Other display messages If the SmartKey is not turned to position 2 in the starter switch, the following message will appear:

FOR ENGINE OIL LEVEL SWITCH ON IGNITION! 왘 Switch on the ignition. If you see the message:

OBSERVE WAITING PERIOD

229

Operation Engine compartment

왘 If engine is at normal operating

왘 Have excess oil siphoned or drained

temperature, wait five minutes before repeating check procedure.

off. Contact your authorized Mercedes-Benz Light Truck Center.

왘 If engine is not yet at normal operating temperature, wait 30 minutes before repeating check procedure.

If you see the message: ENGINE OIL LEVEL NOT WHEN ENGINE ON! 왘 Turn off the engine. 왘 If the engine is at normal operating

temperature, wait five minutes before checking oil.

왘 If the engine is not yet at normal

operating temperature, you must wait 30 minutes before checking oil.

If there is excess engine oil with the engine at normal operating temperature, the following message will appear:

ENGINE OIL LEVEL REDUCE OIL LEVEL

Excess oil must be siphoned or drained off. It could cause damage to the engine and catalytic converter not covered by the Mercedes-Benz Limited Warranty.

Perform the engine oil level check with the dipstick if it cannot be completed with the control system (컄 page 230). In this case we recommend that you have the system checked at a Mercedes-Benz Light Truck Center.

For more information on messages in the display concerning engine oil, see the “Practical hints” section (컄 page 271).

230

Checking engine oil level with the oil dipstick When checking the oil level the vehicle must 앫 be parked on level ground 앫 be at normal operating temperature 앫 have been stationary for at least five

minutes with the engine turned off The engine oil level can be checked by either the oil dipstick or via the multi- function display in the instrument cluster (컄 page 229). The amount of engine oil needed is shown more precisely in the multifunction display.

To check the engine oil level with the oil dipstick, do the following: 왘 Open the hood (컄 page 227). 왘 Pull out oil dipstick 1 (컄 page 232) 왘 Wipe oil dipstick 1 clean. 왘 Fully insert oil dipstick 1 into the

dipstick guide tube.

왘 Pull out oil dipstick 1 again after

approximately three seconds to obtain accurate reading.

The filling quantity between the upper and lower marks on the oil dipstick is approximately 2.1 US qt. (2.0 l).

왘 If necessary, add engine oil. For adding engine oil see (컄 page 231). For more information on engine oil, see the “Technical data” section (컄 page 333) and (컄 page 334). For more information on messages in the display concerning engine oil, see the “Practical hints” section (컄 page 271).

Oil dipstick The oil level is correct when it is between the lower (min) and upper (max) mark of the oil dipstick.

Operation Engine compartment

Adding engine oil

Only use approved engine oils. For a listing of approved engine oils, refer to the Factory Approved Service Products pamphlet in your vehicle literature port- folio. In addition, check the oil filler cap for important information pertaining to the engine oil needing to meet a specific Mercedes-Benz specification (e.g. MB 229.5). If such information is printed on the oil filler cap, only use an engine oil from the list of approved engine oils in the Factory Approved Service Prod- ucts pamphlet that meets the specifi- cation indicated on the oil filler cap. Using engine oils of other specification may cause the FSS to incorrectly deter- mine the next service interval and will result in engine damage not covered by the Mercedes-Benz Limited Warranty.

231

Operation Engine compartment

1 Oil dipstick 2 Oil filler cap 왘 Unscrew oil filler cap 2 from filler

neck.

왘 Add engine oil as required. Be careful

not to overfill with oil.

Be careful not to spill any oil when adding. Avoid environmental damage caused by oil entering the ground or water.

232

Excess oil must be siphoned or drained off. It could cause damage to the engine and catalytic converter not covered by the Mercedes-Benz Limited Warranty.

왘 Screw oil filler cap 2 back on filler

neck.

For more information on engine oil, see the “Technical data” section (컄 page 333) and (컄 page 334).

Transmission fluid level

The transmission fluid level does not need to be checked. The transmission has a per- manent supply of automatic transmission fluid. If you notice transmission fluid loss or gear shifting malfunctions, have an authorized Mercedes-Benz Light Truck Center check the automatic transmission.

Coolant level

The engine coolant is a mixture of water and anticorrosion/antifreeze. When checking the coolant level, 앫 the vehicle must be parked on level

ground.

앫 the engine must be cool. The coolant level should reach the COLD LEVEL mark in the reservoir.

Warning!

In order to avoid any possibly serious burns: 앫 Use extreme caution when opening the hood if there are any signs of steam or coolant leaking from the cooling system, or if the coolant temperature display in- dicates that the coolant is overheated. 앫 Do not remove pressure cap on coolant reservoir if engine temperature is above 194°F (90°C). Allow engine to cool down before removing cap. The coolant reservoir contains hot fluid and is under pressure.

앫 Using a rag, slowly open the cap approx- imately 1⁄2 turn to relieve excess pres- sure. If opened immediately, scalding hot fluid and steam will be blown out un- der pressure.

앫 Do not spill antifreeze on hot engine

parts. Antifreeze contains ethylene gly- col which may burn if it comes into con- tact with hot engine parts.

Operation Engine compartment

The coolant expansion tank is located on the passenger side of the engine compart- ment.

왘 Using a rag, turn the cap slowly approx-

imately one half turn to the left to re- lease any excess pressure.

1 Cap

왘 Continue turning the cap to the left and

remove it.

왘 Check coolant level.

The coolant level is correct if the level 앫 for cold coolant: is level with the

mark on the reservoir

앫 for warm coolant: is approx. 0.6 in

(1.5 cm) higher

왘 Add coolant as required. 왘 Replace and tighten cap until you hear

it click a few times.

For more information on coolant, see “Coolants” (컄 page 336).

233

Operation Engine compartment

Windshield/rear window washer sys- tem and headlamp cleaning system

The windshield washer reservoir is located in the engine compartment on the passen- ger side. It holds approximately 5.3 US qt (5.0 l). The headlamp cleaning system is also supplied from the windshield washer reservoir.

1 Cap

234

Warning!

Washer solvent/antifreeze is highly flam- mable. Do not spill washer solvent/antifreeze on hot engine parts, be- cause it may ignite and burn. You could be seriously burned.

Only use washer fluid which is suitable for plastic lenses. Improper washer flu- id can damage the plastic lenses of the headlamps.

왘 Use the tab to pull cap 1 upwards. 왘 Check washer solvent level and add

washer solvent as required.

왘 Press cap 1 on the filler neck until is

has completely engaged.

Add MB Windshield Washer Concentrate “S” to the water during all seasons. 앫 At temperatures above freezing point,

use MB Windshield Washer Concen- trate “S” to prevent smearing.

앫 If there is a danger of frost, use

MB Windshield Washer Concentrate “S” and commercially available pre- mixed windshield washer solvent/anti- freeze to prevent water from freezing on the windshield and the reservoir from being damaged.

Premix the windshield washer fluid in a suitable container, adapting the mixing ra- tio to the outside temperature (컄 page 339).

왔 Battery The battery is located in front of the rear seat bench and below the cup holder. Jump starting terminals are located in the left side of the engine compartment (컄 page 314). Refer to Service Booklet for battery maintenance intervals. The battery should always be sufficiently charged in order to achieve its rated ser- vice life. If you use your vehicle less than approxi- mately 200 miles (300 km) per month, mostly for short-distance trips, or if it is not used for long periods of time, you will need to have the battery charge checked more frequently and corrected if necessary. When replacing batteries, always use bat- teries approved by Mercedes-Benz. If you do not intend to operate your vehicle for an extended period of time, consult an authorized Mercedes-Benz Light Truck Center about steps you need to observe.

G Observe all safety instructions

and precautions when handling automotive batteries.

A Risk of explosion D Keep flames or sparks away

from battery. Do not smoke.

B Battery acid is caustic. Do not

allow it to come into contact with skin, eyes or clothing. In case it does, immediately flush affected area with clear water and seek medical help if necessary.

E Wear eye protection. C Keep children away. F Follow the instructions in this

Operator’s Manual.

Operation Battery

Batteries contain materials that can harm the environment if disposed of improperly. Recycling of batteries is the preferred method of disposal. Many states require sellers of batteries to accept old batteries for recycling.

If the battery is discharged 앫 you will no longer be able to turn the SmartKey in the starter switch 앫 the gear selector lever will remain

locked in position P

For more information, see “Battery” (컄 page 311).

235

Operation Tires and wheels 왔 Tires and wheels See your authorized Mercedes-Benz Light Truck Center for information on tested and recommended rims and tires for summer and winter operation. They can also offer advice concerning tire service and pur- chase.

Warning!

Replace rims or tires with the same designa- tion, manufacturer and type as shown on the original part. See your authorized Mercedes-Benz Light Truck Center for fur- ther information. If incorrectly sized rims and tires are mounted: 앫 The wheel brakes or suspension compo-

nents can be damaged.

앫 The correct operating clearance of the wheels and the tires are no longer guar- anteed.

236

Warning!

Important guidelines

Do not mix different tire construction types (i.e. radial, bias, bias-belted) on your vehicle because handling may be adversely affected and may result in loss of control.

Warning!

Worn, old tires can cause accidents. If the tire tread is badly worn, or if the tires have sustained damage, replace them.

When replacing rims, use only genuine Mercedes-Benz wheel bolts specified for the particular rim type. Failure to do so can re- sult in the bolts loosening and possibly an accident.

Retreaded tires are not tested or recom- mended by Mercedes-Benz, since previous damage cannot always be recognized on retreads. Mercedes-Benz can therefore not assure the operating safety of the vehi- cle when such tires are used.

앫 Use only sets of tires and rims of the

same type and make.

앫 Tires must be of the correct size for the

rim.

앫 Break in new tires for approximately

60 miles (100 km) at moderate speeds.

앫 Regularly check the tires and rims for

damage. Dented or bent rims can cause tire pressure loss and damage to the tire beads.

앫 If vehicle is heavily loaded, check tire

pressure and correct as required.

앫 Do not allow your tires to wear down too far. Adhesion properties on wet roads are sharply reduced at tread depths under 1⁄8 in (3 mm).

앫 When replacing individual tires, you should mount new tires on the front wheels first (on vehicles with same-sized wheels all around).

Life of tire

Direction of rotation

Checking tire inflation pressure

Operation Tires and wheels

Unidirectional tires offer added advantag- es, such as better hydroplaning perfor- mance. To benefit, however, you must ensure the tires rotate in the direction specified. An arrow on the sidewall indicates the in- tended direction of rotation of the tire.

The service life of a tire is dependent upon varying factors including but not limited to: 앫 Driving style 앫 Tire pressure 앫 Distance driven

Warning!

Tires and spare wheel should be replaced af- ter six years, regardless of the remaining tread.

Keep unmounted tires in a cool, dry place with as little exposure to light as possible. Protect tires from contact with oil, grease and gasoline.

Warning!

If the tire pressure drops repeatedly: 앫 Check the tires for punctures from for-

eign objects.

앫 Check to see whether air is leaking from

the valves or from around the rim.

Correct the tire pressure only when tires are cold. Regularly check your tire pressure at inter- vals of no more than 14 days. If the tires are warm, you should only cor- rect the tire pressure if it is too low for cur- rent operating conditions. A table on the fuel filler flap lists the spec- ified tire inflation pressures for warm and cold tires as well as for various operating conditions.

237

Operation Tires and wheels

The pressures listed for light loads are minimum values offering high driving comfort. Increased inflation pressures listed for heavier loads may also be used for light loads. These higher pressures produce favorable handling characteristics. The ride of the vehicle, however, will be somewhat harder. Never exceed the max. values or inflate tires below the min. values listed in the fuel filler flap.

Tire pressure changes by approximately 1.5 psi (0.1 bar) per 18°F (10°C) of air temperature change. Keep this in mind when checking tire pressure where the temperature is different from the outside temperature. Tire temperature and tire pressure are also increased while driving, depending on the driving speed and the tire load.

238

Warning!

Rotating wheels

Follow recommended inflation pressures.

Warning!

Do not overinflate tires. Overinflated tires can result in sudden deflation (blowout) be- cause they are more likely to become punc- tured or damaged by road debris, potholes, etc.

Do not underinflate tires. Underinflated tires wear unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated.

Do not overload the tires by exceeding the Gross Vehicle Weight Rating (GVWR) and the Gross Axle Weight Rating (GAWR) as in- dicated on the certification label on the driv- er’s door pillar. Overloading the tires can overheat them, possibly causing a blowout.

Check the spare tire periodically for condi- tion and inflation. Spare tire will age and become worn over time even if never used, and thus should be inspected and replaced when necessary.

Rotate front and rear wheels only if there are of the same size.

The wheels can be rotated every 3000 to 6000 miles (5000 to 10000 km) or soon- er if necessary, according to the degree of tire wear. The same direction of tire rota- tion must be retained. Rotate the wheels before the characteris- tic tire wear pattern becomes visible (shoulder wear on front wheels and tread center wear on rear wheels). Thoroughly clean the inner side of the wheels after each rotation. Check and en- sure proper tire inflation pressure.

Warning!

Have the tightening torque checked after changing a wheel. Wheels could become loose if not tightened with a torque of 97 lb-ft (130 Nm).

Use only genuine Mercedes-Benz wheel bolts specified for your vehicle’s rims.

Operation Tires and wheels

239

Operation Winter driving 왔 Winter driving Before the onset of winter, have your vehi- cle winterized at an authorized Mercedes-Benz Light Truck Center. This service includes: 앫 Check of anticorrosion and antifreeze

concentration.

앫 Addition of cleaning concentrate to the water of the windshield and headlamp cleaning system. Add MB Concentrate “S” to a premixed windshield washer solvent/antifreeze which is formulated for below freezing point temperatures (컄 page 339).

앫 Battery test. Battery capacity drops

with decreasing ambient temperature. A well charged battery helps to ensure the engine can be started even at low ambient temperatures.

앫 Tire change. Mercedes-Benz recom-

mend M+S rated radial-ply tires with a minimum tread depth of approximately 1⁄6 in (4 mm) on all four wheels for the winter season.

240

Winter tires

Always use winter tires at temperatures below 45°F (7°C) and whenever wintry road conditions prevail. Use of winter tires is the only way to achieve the maximum ef- fectiveness of the ABS, ESP, EBB and 4-ETS in winter operation. For safe handling, make sure all winter tires mounted are of the same make and have the same tread design.

Warning!

Winter tires with a tread depth under 1⁄6 in (4 mm) must be replaced. They are no long- er suitable for winter operation.

Always observe the speed rating of the winter tires installed on your vehicle. If the maximum speed for which your tires are rated is below the speed rating of your ve- hicle, you must place a notice to this effect where it will be seen by the driver. Such no-

tices are available at your tire dealer or any authorized Mercedes-Benz Light Truck Center.

Warning!

If you use your spare tire when winter tires are fitted on the other wheels, be aware that the difference in tire characteristics may very well impair turning stability and that overall driving stability may be reduced. Adapt your driving style accordingly.

Have the spare tire replaced with a winter tire at the nearest authorized Mercedes-Benz Light Truck Center.

Block heater (Canada only)

The engine is equipped with a block heat- er. The electrical cable may be installed at your authorized Mercedes-Benz Center.

Snow chains

Snow chains should only be driven on snow-covered roads at speeds not to ex- ceed 30 mph (50 km/h). Remove chains as soon as possible when driving on roads without snow.

When driving with snow chains, you may wish to deactivate the ESP (컄 page 79) before setting the vehicle in motion. This will improve the vehicle’s traction.

Observe the following guidelines when us- ing snow chains: 앫 Use of snow chains is not permissible

on all wheel/tire combinations.

앫 Snow chains should only be used on all four wheels. With only two chains avail- able, they should be mounted on the rear wheels. Follow the manufacturer’s mounting instructions.

앫 Only use snow chains that are ap-

proved by Mercedes-Benz. Your autho- rized Mercedes-Benz Light Truck Center will be glad to advise you on this subject.

앫 Use of snow chains may be prohibited depending on location. Always check local and state laws before installing snow chains.

Operation Winter driving

241

Operation Maintenance 왔 Maintenance We strongly recommend that you have your vehicle serviced by your authorized Mercedes-Benz Light Truck Center, in ac- cordance with the Service Booklet at the times called for by the FSS (Flexible Ser- vice System). Failure to have the vehicle maintained in accordance with the Service Booklet at the designated times/mileage called for by the FSS may result in vehicle damage not covered by the Mercedes-Benz Limited Warranty. FSS will notify you when your next service is due. Approximately one month before your next service is due, one of the following mes- sages will appear in the multifunction dis- play while you are driving or when you switch on the ignition (example service A):

SERVICE A IN XX DAYS SERVICE A IN XX MILES (KM) SERVICE A DUE NOW!

242

앫 after 10 seconds when you switch on the ignition or when reaching the ser- vice threshold while driving

앫 after 30 seconds, once the suggested

service term has passed

You can also clear it yourself. 왘 Press the reset button on the instru-

ment cluster (컄 page 25).

Service term exceeded

If you have exceeded the suggested ser- vice term, you will see the following mes- sage in the multifunction display:

SERVICE A EXCEEDED BY XX DAYS SERVICE A EXCEEDED BY XX MILES (KM)

An accoustic signal will sound. The Mercedes-Benz Light Truck Center will reset the service indicator following a com- pleted service.

The type of service due is indicated in the speedometer display field: 9 Minor service (A) ½ Major service (B)

The interval between services depends on your driving habits. A gentle driving style, moderate engine speeds and the avoidance of short-distance trips will lengthen the interval between services.

Clearing the service indicator

The service indicator is automatically cleared

Calling up the service indicator

Resetting the service indicator

왘 Switch ignition on.

The standard display of the control sys- tem appears (컄 page 115).

왘 Press button k or j on the mul- tifunction steering wheel until the FSS indicator appears in the multifunction display. If the vehicle battery is disconnected, the days of disconnection will not be in- cluded in the count shown by the ser- vice indicator. To arrive at the true service deadline, you will need to sub- tract these days from the days shown in the service indicator. Do not confuse the service indicator with the engine oil level indicator :.

In the event that the service on your vehi- cle is not carried out by an authorized Mercedes-Benz Light Truck Center, you can reset the service indicator yourself. 왘 Switch ignition on.

The standard display of the control sys- tem appears (컄 page 115).

왘 Press button k or j on the mul- tifunction steering wheel until the FSS indicator appears in the multifunction display.

왘 Press the reset button (컄 page 25) for

about three seconds. This message appears in the tachome- ter: SERVICE INTERVAL? RESET WITH R BUTTON FOR 3 SEC.

왘 To confirm, press reset button until you

hear a signal. The service indicator now displays the reset interval.

Operation Maintenance

If the service indicator was inadvertent- ly reset, have a Mercedes-Benz Light Truck Center correct it. Only reset if the proper service has been performed. Resetting the system without performing proper service as called for by the FSS will cause the FSS to incorrectly determine the next ser- vice interval which will result in engine damage not covered by the Mer- cedes-Benz Limited Warranty.

243

Operation Vehicle care 왔 Vehicle care Cleaning and care of the vehicle

Warning!

Many cleaning products can be hazardous. Some are poisonous, others are flammable. Always follow the instructions on the partic- ular container. Always open your vehicle’s doors or windows when cleaning the inside.

Never use fluids or solvents that are not de- signed for cleaning your vehicle.

While in operation, even while parked, your vehicle is subjected to varying external in- fluences which, if gone unchecked, can at- tack the paintwork as well as the underbody and cause lasting damage.

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Such damage is caused not only by ex- treme and varying climatic conditions, but also by: 앫 Air pollution 앫 Road salt 앫 Tar 앫 Gravel and stone chipping To avoid paint damage, you should imme- diately remove: 앫 Grease and oil 앫 Fuel 앫 Coolant 앫 Brake fluid 앫 Bird droppings 앫 Insects 앫 Tree resins, etc. Frequent washing reduces and/or elimi- nates the aggressiveness and potency of the above adverse influences.

More frequent washings are necessary to deal with unfavorable conditions: 앫 Near the ocean 앫 In industrial areas (smoke, exhaust

emissions)

앫 During winter operation You should check your vehicle from time to time for stone chipping or other damage. Any damage should be repaired as soon as possible to prevent corrosion. In doing so, do not neglect the underbody of the vehicle. A prerequisite for a thor- ough check is a washing of the underbody followed by a thorough inspection. Dam- aged areas need to be re-undercoated. Your vehicle has been treated at the facto- ry with a wax-base rustproofing in the body cavities which will last for the lifetime of the vehicle. Post-production treatment is neither necessary nor recommended by Mercedes-Benz because of the possibility of incompatibility between materials used in the production process and others ap- plied later.

We have selected car-care products and compiled recommendations which are specially matched to our vehicles and which always reflect the latest technology. You can obtain Mercedes-Benz approved car-care products at your authorized Mercedes-Benz Light Truck Center. Scratches, corrosive deposits, corrosion or damage due to negligent or incorrect care cannot always be removed or repaired with the car-care products recommended here. In such cases it is best to seek aid at your authorized Mercedes-Benz Light Truck Center. The following topics deal with the cleaning and care of your vehicle and give important “how-to” information as well as references to Mercedes-Benz approved car-care prod- ucts. Additional information can be found in the booklet “Vehicle Care Guide”.

Power-washer When using a power-washer for cleaning the vehicle, always observe manufactur- er’s operating instructions.

Never use a round nozzle to pow- er-wash tires. The intense jet of water can result in damage to the tire. Always replace a damaged tire. Always keep the jet of water moving across the surface. Do not aim directly at electrical parts, electrical connec- tors, sensors, seals, or other rubber parts.

Tar stains Quickly remove tar stains before they dry and become more difficult to remove. A tar remover is recommended.

Operation Vehicle care

Paintwork, painted body components Mercedes-Benz approved Paint Care should be applied when water drops on the paint surface do not “bead up”, normally every three to five months, depending on climate and washing detergent used. Mercedes-Benz approved Paint Cleaner should be applied if the paint surface shows signs of dirt embedding (i.e. loss of gloss). Do not apply any of these products or wax if your vehicle is parked in the sun or if the hood is still hot. 왘 Use the appropriate MB-Touch-Up

Stick for quick and provisional repairs of minor paint damage (i.e. chips from stones, vehicle doors, etc.).

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Operation Vehicle care

Engine cleaning Prior to cleaning the engine compartment, make sure to protect electrical compo- nents and connectors from the intrusion of water and cleaning agents. Corrosion protection, such as MB Anticor- rosion Wax should be applied to the engine compartment after every engine cleaning. Before applying, all control linkage bush- ings and joints should be lubricated. The poly-V-belt and all pulleys should be pro- tected from any wax.

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Ornamental moldings For regular cleaning and care of very dirty chrome-plated parts, use a chrome clean- er.

Headlamps, tail lamps, side marker, turn signal lenses 왘 Use a mild car wash detergent, such as

Mercedes-Benz approved Car Sham- poo, with plenty of water.

To prevent scratches, never apply strong force and use only a soft, non-scratchy cloth when cleaning the lenses. Do not at- tempt to wipe dirty lenses with a dry cloth or sponge.

Vehicle washing Do not use hot water or wash your vehicle in direct sunlight. Use only a mild car wash detergent, such as Mercedes-Benz ap- proved Car Shampoo. Thoroughly spray the vehicle with a dif- fused jet of water. Direct only a very weak spray towards the ventilation intake. Use plenty of water and rinse the sponge and chamois frequently. Rinse with clear water and thoroughly dry with a chamois. Do not allow cleaning agents to dry on the finish. Due to the width of the vehicle, fold in ex- terior rear view mirrors prior to running the vehicle through an automatic car wash to prevent damage to the mirrors. In the winter, thoroughly remove all traces of road salt as soon as possible. When washing the underbody, do not for- get to clean the inner sides of the wheels.

Cleaning the Rear Parking Assist sensors*

Wiper blades 왘 Fold wiper arms forward.

Window cleaning 왘 Fold wiper arms forward.

Operation Vehicle care

1 Sensor 왘 Use a mild car wash detergent, such as

Mercedes-Benz approved Car Sham- poo, with plenty of water to clean sensor 1.

To prevent scratches, never apply strong force and use only a soft, non-scratchy cloth when cleaning the sensor. Do not at- tempt to wipe dirty sensors with a dry cloth or sponge.

Warning!

Warning!

For safety reasons, switch off wipers and re- move SmartKey from starter switch before cleaning the wiper blades, otherwise the wiper motor can suddenly turn on and cause injury.

For safety reasons, switch off wipers and re- move SmartKey from starter switch before cleaning the windshield, otherwise the wiper motor can suddenly turn on and cause inju- ry.

왘 Clean the wiper blade inserts with a

왘 Use a window cleaning solution on all

clean cloth and detergent solution.

Fold the windshield wiper arms back onto the windshield before turning the SmartKey in the starter switch. Hold on to the wiper when folding the wiper arm back. If released, the force of the impact from the tensioning spring could crack the windshield.

glass surfaces. An automotive glass cleaner is recom- mended.

Fold the windshield wiper arms back onto the windshield before turning the SmartKey in the starter switch. Hold on to the wiper when folding the wiper arm back. If released, the force of the impact from the tensioning spring could crack the windshield.

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Operation Vehicle care

Light alloy wheels Mercedes-Benz approved Wheel Care should be used for regular cleaning of the light alloy wheels. If possible, clean wheels once a week with Mercedes-Benz approved Wheel Care, us- ing a soft bristle brush and a strong spray of water. Follow instructions on container.

Only use acid-free cleaning materials. The acid could lead to corrosion or may damage the clear coat.

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Instrument cluster Use a gentle dishwashing detergent or mild detergent for delicate fabrics as a washing solution. Wipe with a cloth moist- ened in lukewarm solution. Do not use scouring agents.

Steering wheel and gear selector lever Wipe with a damp cloth and dry thoroughly or clean with Mercedes-Benz approved Leather Care.

Cup holder Use a gentle dishwashing detergent or mild detergent for delicate fabrics as a washing solution. Wipe with a cloth moist- ened in lukewarm solution. Do not use scouring agents.

Hard plastic trim items Pour Mercedes-Benz approved Interior Care onto soft lint-free cloth and apply with light pressure.

Headliner Clean with soft bristle brush, or use a dry-shampoo cleaner in case of excessive dirt.

Seat belts The webbing must not be treated with chemical cleaning agents. Use only clear, lukewarm water and soap. Do not dry the webbing at temperatures above 176°F (80°C) or in direct sunlight.

Warning!

Do not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection.

Operation Vehicle care

Upholstery Using aftermarket seat covers or wearing clothing that have the tendency to give off coloring (e.g. when wet, etc.) may cause the upholstery to become permanently dis- colored. By lining the seats with a proper intermediate cover, contact-discoloration will be prevented.

Leather upholstery Wipe leather upholstery with a damp cloth and dry thoroughly or clean with Mercedes-Benz approved Leather Care. Exercise particular care when cleaning per- forated leather as its underside should not become wet.

Cloth upholstery Clean with soft bristle brush, or use a dry-shampoo cleaner in case of excessive dirt.

MB Tex upholstery Pour Mercedes-Benz approved Interior Care onto soft lint-free cloth and apply with light pressure.

Plastic and rubber parts Do not use oil or wax on these parts.

Illuminated door sill panels Use a gentle dishwashing detergent or mild detergent for delicate fabrics as a washing solution. Wipe with a cloth moist- ened in lukewarm solution. Do not use scouring agents.

Wood trims Dampen cloth using water and use damp cloth to clean wood trims in your vehicle. Do not use solvents like tar remover or wheel cleaner nor polishes or waxes as these may be abrasive.

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Practical hints What to do if …

Where will I find ...?

Unlocking/locking in an emergency

Opening/closing in an emergency

Brush guard*

Replacing bulbs

Replacing wiper blades

Flat tire

Battery

Jump starting

Towing the vehicle

Fuses

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Practical hints What to do if … 왔 What to do if … Lamps in instrument cluster

General information: If a bulb in the instrument cluster fails to come on during the bulb self-check when

turning the SmartKey in starter switch to position 2, have it checked and replaced if necessary.

Problem - The yellow ABS indicator lamp

comes on while driving.

Possible cause You engaged the differential locks. The ABS, ESP, BAS, EBB and 4-ETS are switched off.

The ABS has detected a malfunction and has switched off. The ESP, BAS, EBB and 4-ETS are also switched off (see messages in dis- play). If the ABS control unit is malfunctioning, oth- er systems such as the navigation system or Rear Parking Assist* may also malfunction. The brake system is still functioning normally but without the ABS available.

Suggested solution 왘 The driving systems will switch on

again after the differential locks have been disengaged.

왘 Continue driving with added caution. Wheels will lock during hard braking reducing steering capability.

왘 Have the system checked at an autho- rized Mercedes-Benz Light Truck Cen- ter as soon as possible.

Failure to follow these instructions in- creases the risk of an accident.

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Problem - The yellow ABS indicator lamp

comes on while driving.

Possible cause The ABS has switched off because charging voltage has fallen below 10 volts. The battery may not be charged.

Practical hints What to do if …

Suggested solution 왘 Turn off unnecessary electric con-

sumers. When the battery voltage is above this value again, the ABS is operational again.

왘 Note the messages in the multifunc-

tion display (컄 page 260).

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Practical hints What to do if …

Problem ; (USA only)

(Canada only) The red brake warning lamp comes on while driving and you hear a warning sound.

Possible cause

Suggested solution

You are driving with the parking brake set.

The red brake warning lamp comes on while driving.

There is insufficient brake fluid in the reser- voir.

Warning!

Driving with the brake warning lamp illumi- nated can result in an accident. Have your brake system checked immediately if the brake warning lap stays on.

Do not add brake fluid before checking the brake system. Overfilling the brake fluid res- ervoir can result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You could be seriously burned.

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왘 Release the parking brake

(컄 page 44).

왘 Also note the messages in the multi-

function display (컄 page 260).

왘 Risk of accident! Carefully stop the

vehicle and notify an authorized Mercedes-Benz Light Truck Center. Do not add brake fluid! This will not solve the problem.

왘 Also note the messages in the multi-

function display (컄 page 260).

If you find that the brake fluid in the brake fluid reservoir has fallen to the minimum mark or below, have the brake system checked for brake pad thickness and leaks.

Problem ; (USA only) - The red brake warning lamp and

(Canada only)

the yellow ABS indicator lamp come on when the engine is run- ning and you hear a warning sound for approximately five sec- onds.

Possible cause The EBB has detected a malfunction and has switched off. You should be prepared for your vehicle to perform differently than normal when braking.

Practical hints What to do if …

Suggested solution 왘 Continue driving with added caution. 왘 Have the system checked at an autho- rized Mercedes-Benz Light Truck Cen- ter as soon as possible.

왘 Also note the messages in the multi-

function display (컄 page 260).

Failure to follow these instructions in- creases the risk of accidents.

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Possible cause There is a malfunction of: 앫 The fuel management system 앫 The ignition system 앫 The emission control system 앫 Systems which impact emissions Such malfunctions may result in excessive emissions values and may switch the engine to its limp-home (emergency operation) mode. Serious damage can occur to the emission system. The fuel cap is not closed tightly. Your gas tank is empty.

Suggested solution 왘 Have the vehicle checked as soon as

possible by an authorized Mercedes-Benz Light Truck Center. An on-board diagnostic connector is used by the service station to link the vehicle to the shop diagnostics sys- tem. It allows the accurate identifica- tion of system malfunctions through the readout of diagnostic trouble codes. It is located near the hood lock release on the upper left of footwell.

왘 Check the fuel cap. 왘 After refuelling, start the engine three

or four times in succession. The limp-home mode is canceled.

Practical hints What to do if …

Problem ? The yellow “CHECK ENGINE”

malfunction indicator lamp comes on while driving.

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Problem v The yellow ESP warning lamp

comes on and remains on while driving.

Possible cause You engaged the differential locks. The ABS, ESP, BAS, EBB and 4-ETS are switched off.

The ESP is deactivated. Risk of accident! Adapt your speed and driv- ing to the prevailing road conditions.

The ESP is deactivated because of interrupt- ed power supply. The ABS may still be opera- tional. The ESP has to be synchronized. The ESP, ABS, BAS, EBB or 4-ETS has detect- ed a malfunction. All driving systems are switched off. Risk of accident! Adapt your speed and driv- ing to the prevailing road conditions.

Practical hints What to do if …

Suggested solution 왘 The driving systems will switch on

again after the differential locks have been disengaged.

왘 Also note the messages in the multi-

function display (컄 page 260).

왘 Turn the ESP back on (컄 page 81). If the ESP cannot be turned back on, have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible. 왘 Note the messages in the multifunc-

tion display (컄 page 260).

왘 Note the messages in the multifunc-

tion display (컄 page 260).

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Practical hints What to do if …

Problem < The red seat belt non-usage

warning lamp illuminates briefly after starting the engine.

Possible cause The warning lamp reminds you to fasten seat belts.

Suggested solution 왘 Fasten your seat belt.

The yellow fuel tank reserve warning lamp illuminates while driving.

The fuel level has gone below the reserve mark.

왘 Refuel at the next gas station. 왘 Also note the messages in the multi-

function display (컄 page 260).

The yellow fuel tank reserve warning lamp is blinking. 1 The red SRS indicator lamp

comes on while driving.

The fuel cap is not closed tight.

왘 Check the fuel cap.

There is a malfunction in the restraint sys- tems. The airbags or emergency tensioning device (ETD) could deploy unexpectedly or fail to activate in an accident.

왘 Drive with added caution to the near- est authorized Mercedes-Benz Light Truck Center.

Warning!

In the event a malfunction of the SRS is indi- cated as outlined above, the SRS may not be operational.

For your safety, we strongly recommend that you visit an authorized Mercedes-Benz Light Truck Center immediately to have the system checked; otherwise the SRS may not be activated when needed in an accident.

This could result in serious or fatal injury, or it might deploy unexpectedly and unneces- sarily which could also result in an accident and/or injury to you or to others.

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Lamp in center console

Problem 7 The indicator lamp comes on.

7 The indicator lamp does not

come on with a BabySmartTM1 child seat properly installed on the front passenger seat.

Possible cause A BabySmartTM child seat is installed on the front passenger seat. Therefore the passen- ger front airbag is switched off. The system is malfunctioning when there is no BabySmartTM child seat installed on the front passenger seat. The system is malfunctioning.

1 BabySmartTM is a trademark of Siemens Automotive Corp.

Practical hints What to do if …

Suggested solution 왘 Have the system checked as soon as

possible by an authorized Mercedes-Benz Light Truck Center.

왘 Make sure there is nothing between seat cushion and child seat and check installation of the child seat.

왘 If the light remains out, have the sys- tem checked as soon as possible by an authorized Mercedes-Benz Light Truck Center. Do not use the BabySmartTM restraint to transport children on the front pas- senger seat until the system has been repaired.

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i Turning the SmartKey in starter switch to position 2 causes all lamps as well as the multifunction display to come on. Make sure they are all in working order before starting your journey.

On the pages that follow, you will find a compilation of the most important warning and malfunction messages that may ap- pear in the multifunction display. High- priority messages appear on a red back- ground.

Practical hints What to do if …

Messages in the multifunction display

The control system shows warning and malfunction messages in the multifunction display. Certain warning and malfunction messag- es are accompanied by an audible signal. Address these messages accordingly and follow the additional instructions given in this Operator’s Manual. Selecting the malfunction memory menu in the control system (컄 page 122) displays both cleared and uncleared messages. High-priority messages appear in the mul- tifunction display in red colour. Certain messages of high priority cannot be cleared from the multifunction display using the reset button (컄 page 112). Other high-priority messages and messag- es of less immediate priority (regular dis- play colours) can be cleared from the multifunction display using the reset but- ton and are then stored in the malfunction message memory (컄 page 122).

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Warning!

All categories of messages contain impor- tant information which should be taken note of and, where a malfunction is indicated, ad- dressed as soon as possible at an autho- rized Mercedes-Benz Light Truck Center.

Failure to repair condition noted may cause damage not covered by the Mercedes-Benz Limited Warranty, or result in property dam- age or personal injury.

Warning!

No messages will be displayed if either the instrument cluster or the multifunction dis- play is inoperative. Systems that have a sig- nificant influence on handling performance may not be functioning.

Contact your nearest authorized Mercedes-Benz Light Truck Center.

Text messages

Display symbol Display message ABS

ABS SYSTEM VISIT WORKSHOP!

VISIT WORKSHOP! DISPLAY MALFUNCTION:

BAS

BRAKE ASSIST VISIT WORKSHOP!

Practical hints What to do if …

Possible cause The ABS has detected a malfunction and has switched off. The ESP, BAS, EBB and 4-ETS are also deactivated. The brake system is still functioning nor- mally but without the ABS available. Wheels will lock during hard braking, re- ducing steering capability. The ABS or the ABS display is malfunc- tioning. Wheels will lock in hard braking reducing steering capability.

The BAS has detected a malfunction and switched off. The brake system is still functioning nor- mally but without the BAS available. Wheels will lock in hard braking reducing steering capability.

Possible solution 왘 Continue driving with added caution. 왘 Have the system checked at an autho- rized Mercedes-Benz Light Truck Cen- ter as soon as possible.

Failure to follow these instructions in- creases the risk of accident.

왘 Continue driving with added caution. 왘 Have the system checked at an autho- rized Mercedes-Benz Light Truck Cen- ter as soon as possible.

Failure to follow these instructions in- creases the risk of accident. 왘 Continue driving with added caution. 왘 Have the system checked at an autho- rized Mercedes-Benz Light Truck Cen- ter as soon as possible.

Failure to follow these instructions in- creases the risk of accident.

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Practical hints What to do if …

Display BAS

Display message VISIT WORKSHOP! DISPLAY MALFUNCTION:

Possible cause The BAS or the BAS display is malfunc- tioning.

Possible solution 왘 Continue driving with added caution. 왘 Have the system checked at an autho-

rized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increas- es the risk of accident.

You have engaged the differential locks. 왘 The ABS switches on again after the dif-

DIFFERENTIAL LOCK ESP

ABS NOT AVAILABLE DIFFERENTIAL LOCKED VISIT WORKSHOP! DISPLAY MALFUNCTION:

The ESP or the ESP display is malfunc- tioning.

ferential locks have been disengaged. 왘 Continue driving with added caution. 왘 Have the system checked at an autho-

rized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increas- es the risk of accident. The display will clear itself after driving a short-distance at more than approximately 12 mph (20 km/h).

ESP NOT AVAILABLE

The ESP is temporarily unavailable. The self-diagnosis has not been completed.

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Display ESP

Display message ESP NOT AVAILABLE

Possible cause The charging voltage has fallen below 10 volts and the ESP has switched off.

Possible solution 왘 When the voltage is above this value

again, the ESP is operational again.

Practical hints What to do if …

The ESP is deactivated because of a mal- function or interrupted power supply. The ABS and BAS might not be operational. The system must be resynchronized.

When synchronizing the ESP, make sure you can turn the steering wheel in

both directions as far as it will go with- out the wheels hitting any objects, e.g. a road curb.

왘 If necessary, have the generator (alter-

nator) and battery checked.

왘 Synchronize the ESP. With vehicle sta-

tionary and the engine running, turn the steering wheel completely to the left and then to the right to synchro- nize the ESP.

If the ESP message does not go out: 왘 Continue driving with added caution.