2003 Mercedes-benz G Class Owners Manual

Operation Engine compartment

If coolant has to be added, a 50/50 mix- ture of water and MB Anticorrosion/Antifreeze should be added. More information on coolant can be found in the “Technical data” section (컄 page 316).

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.

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.

1 Cap

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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

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Warning!

Washer solvent/antifreeze is highly flam- mable. Do not spill washer solvent/antifreeze on hot engine parts, be- cause it may ignite. You can 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, use MB Windshield Washer Concentrate “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 321).

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 298). 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.

and precautions when handling automotive batteries.

G Observe all safety instructions A Risk of explosion D Keep flames or sparks away B Battery acid is caustic. Do not

from battery. Do not smoke.

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 key in the starter switch 앫 the selector lever will remain

locked in position P

More information on battery can be found in the “Practical hints” section (컄 page 295).

223

Operation Tires and wheels 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.

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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.

Retread 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 that 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 repeatedly drops 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.

225

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.

226

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 specified vehicle capacity weight (as indicat- ed by the label on the pillar in the driver’s door opening). 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 sooner 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 ft.lb. (130 Nm).

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

Operation Tires and wheels

227

Operation Winter driving 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 temperatures (컄 page 321).

앫 Battery test. Battery capacity drops

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

앫 Tire change. We recommend M+S rat- ed radial-ply tires on all four wheels for the winter season.

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Winter tires

Always use winter tires at temperatures below 39°F (4°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, ensure that all winter tires mounted are of the same make and have the same tread design.

Warning!

Winter tires with a tread depth under 0.16 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 from your tire dealer or from 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 76) before setting the vehicle in motion. This will improve the vehicle’s traction.

Observe the following guidelines when us- ing snow chains: 앫 Chains cannot be mounted on all

wheel/tire combinations.

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

앫 Use only 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.

Operation Winter driving

229

Operation Maintenance 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!

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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 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.

1 Reset knob 왘 Press reset knob 1.

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)

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

Calling up the service indicator

Resetting the service indicator

왘 Switch ignition on.

The standard display of the control sys- tem appears (컄 page 111).

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 111).

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 knob (컄 page 230) for

about four seconds. This message appears in the tachome- ter: DO YOU WANT TO RESET SERVICE INTER- VAL? CONFIRM BY PRESSING R

왘 To confirm, hold down the reset knob

(컄 page 230) 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.

231

Operation Vehicle care 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. Such damage is caused not only by ex- treme and varying climatic conditions, but also by: 앫 Air pollution 앫 Road salt 앫 Tar, gravel and stone chipping

232

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 manufacturer’s operating instructions.

Never use a round nozzle to power 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.

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 3 to 5 months, depending on climate and washing detergent used.

Operation Vehicle care

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. Use the appropriate MB-Touch-Up Stick for quick and provisional repairs of minor paint damage (i.e. chips from stones, vehi- cle doors, etc.).

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.

233

Operation Vehicle care

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 out- side 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.

234

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

Headlamps, tail lamps, turn signal lenses Use a mild car wash detergent, such as Mercedes-Benz approved Car Shampoo, 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.

Cleaning the Rear Park Assist sensors*

1 Sensor Use a mild car wash detergent, such as Mercedes-Benz approved Car Shampoo, 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.

Wiper blades 왘 Fold the wiper blades away from the

window before cleaning.

Clean the wiper blade inserts with a clean cloth and detergent solution.

Warning!

For safety reasons, switch off wipers and re- move key from starter switch before clean- ing the wiper blades, otherwise the wiper motor can suddenly turn on and cause inju- ry.

Window cleaning 왘 Fold the wiper blades away from the

window before cleaning the windshield or rear window.

Use a window cleaning solution on all glass surfaces. An automotive glass cleaner is recommended.

Warning!

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

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.

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

Operation Vehicle care

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.

235

Operation Vehicle care

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.

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.

236

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.

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

237

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

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

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

Problem v The yellow ESP warning lamp lights up 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 driving to the prevail- ing 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 driving to the prevailing road con- ditions.

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 246).

왘 Turn the ESP back on (컄 page 78). 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 246).

왘 Note the messages in the multifunc-

tion display (컄 page 246).

238

Problem v The yellow ESP warning lamp

flashes while driving.

Possible cause The ESP or traction control is operating be- cause of detected traction loss in at least one tire.

Suggested solution 왘 During take-off apply as little throttle

as possible.

왘 While driving ease up on the accelera-

Practical hints What to do if …

tor.

왘 Adapt your speed and driving to the

prevailing road and weather condi- tions.

왘 Do not deactivate the ESP (excep-

tions: (컄 page 76).

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

239

Practical hints What to do if …

Problem - The yellow ABS malfunction indi- cator lamp comes on while driv- ing.

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 Park Assist* may also malfunction. The brake system is still functioning normally but without the ABS available. The ABS has switched off because charging voltage has fallen below 10 volts. The battery may not be charged.

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.

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 246).

240

Practical hints What to do if …

Problem ; (USA only)

(Canada only)

Possible cause

Suggested solution

The red brake warning lamp lights up while driving and you hear a warning sound.

You are driving with the parking brake set.

The red brake warning lamp lights up 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 lamp stays on.

Don’t 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 can be seriously burned.

왘 Release the parking brake

(컄 page 44).

왘 Also note the messages in the multi-

function display (컄 page 246).

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 246).

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.

241

Practical hints What to do if …

(Canada only)

Problem ; (USA only) - The red brake warning lamp and the yellow ABS malfunction indi- cator lamp come on when the engine is running and you hear a warning sound for approximately five seconds.

Possible cause

Suggested solution

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

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 246).

Failure to follow these instructions in- creases the risk of accidents. 왘 Drive with added caution to the near- est authorized Mercedes-Benz Light Truck Center.

1 The red SRS indicator lamp lights

up while driving.

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

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 others.

242

Problem ? The yellow “CHECK ENGINE”

malfunction indicator lamp comes on while driving.

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.

< The red seat belt warning lamp

blinks for a brief period after starting the engine.

The warning lamp reminds you to fasten seat belts.

The yellow fuel tank reserve warning lamp illuminates while driving.

The fuel level has gone below the reserve mark.

Practical hints What to do if …

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.

왘 Fasten your seat belt.

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

function display (컄 page 246).

243

Practical hints What to do if …

Problem The yellow fuel tank reserve warning lamp is blinking.

Possible cause The fuel cap is not closed tight.

Suggested solution 왘 Check the fuel cap.

Lamp in center console

Problem 7 The indicator lamp lights up.

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

Suggested solution

왘 Have the system checked as soon as

possible by an authorized Mercedes-Benz Light Truck Center.

244

Problem 7 The indicator lamp does not light

up with a BabySmartTM child seat properly installed on the front passenger seat.

Possible cause The system is malfunctioning.

Practical hints What to do if …

Suggested solution 왘 Make sure that there is nothing be-

tween 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.

245

Practical hints What to do if …

Messages in the 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.

246

The messages are divided into different categories:

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.

Selecting the malfunction memory menu in the control system (컄 page 118) displays both cleared and uncleared messages.

Category Meaning

2 and 3

Highest priority messages. Certain highest priority mes- sages cannot be cleared. Other high priority messag- es and messages of medium and low priority can be cleared. These messages can be cleared. To clear, press: 앫 button è, ÿ, j

or k on the multi- function steering wheel (컄 page 112)

앫 the reset button on the

left side of the instru- ment cluster (컄 page 24)

The messages are then stored in the malfunction memory.

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.

Display

ABS SYSTEM VISIT WORKSHOP!

Practical hints What to do if …

On the pages that follow, you will find a compilation of all the messages that may appear in the display.

Turning the key in starter switch to position 2 causes all lamps as well as the multifunction display to come on. Ensure that they are all in working or- der before starting your journey.

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 normally but without the ABS avail- able. Wheels will lock during hard braking, reducing steering capabili- ty.

Suggested solution 왘 Continue driving with added

Category

caution.

왘 Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of accident.

247

Practical hints What to do if …

Display

DISPLAY DEFECTIVE VISIT WORKSHOP!

Possible cause The ABS or the ABS display is mal- functioning. Wheels will lock in hard braking re- ducing steering capability.

ABS NOT AVAILABLE DIFFERENTIAL LOCKED

You have engaged the differential locks.

BAS

BRAKE ASSIST VISIT WORKSHOP!

The BAS has detected a malfunction and switched off. The brake system is still functioning normally but without the BAS avail- able. Wheels will lock in hard braking reducing steering capability.

Category

Suggested solution 왘 Continue driving with added

caution.

왘 Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of accident. 왘 The ABS switches on again af- ter the differential locks have been disengaged.

왘 Continue driving with added

caution.

왘 Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of accident.

248

Display

BATTERY/ALTERNATOR VISIT WORKSHOP!

Possible cause The battery was charged with a bat- tery charger or jump started. The battery is no longer charging. Possible causes: 앫 alternator malfunctioning 앫 broken poly-V-belt

Practical hints What to do if …

Suggested solution 왘 Have the battery checked at a

Category

service station.

왘 Stop immediately and check

the poly-V-belt.

If it is broken: 왘 Do not continue to drive. Oth- erwise the engine will overheat due to an inoperative water pump which may result in seri- ous engine damage not cov- ered by the Mercedes-Benz Limited Warranty. Notify an authorized Mercedes-Benz Light Truck Center.

If it is intact: 왘 Turn off unnecessary electric

consumers.

왘 Drive immediately to the near- est authorized Mercedes-Benz Light Truck Center.

249

Practical hints What to do if …

Display 3 (Canada only) ; (USA only)

BRAKE PAD WEAR VISIT WORKSHOP!

Possible cause The brake pads have reached their wear limit.

Suggested solution 왘 Have the brake pads replaced

as soon as possible.

BRAKE FLUID VISIT WORKSHOP!

There is insufficient brake fluid in the reservoir.

왘 Risk of accident! Stop the vehi-

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

Category

Warning!

Driving with the last message displayed can result in an accident. Have your brake sys- tem checked immediately.

Don’t 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 can be seriously burned.

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.

Brake pad thickness must be visually checked by a qualified technician at the intervals specified in the Service book- let.

250

Display

COOLANT CHECK LEVEL!

Possible cause The coolant level is too low.

Practical hints What to do if …

Category

Suggested solution 왘 Add coolant (컄 page 220). 왘 If you have to add coolant fre- quently, have the cooling sys- tem checked by an authorized Mercedes-Benz Light Truck Center.

Warning!

Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts. You can be seriously burned.

Do not ignore the low engine coolant level warning. Extended driving with the message and symbol displayed may cause serious engine damage not covered by the Mercedes-Benz Limited Warranty. Do not drive without sufficient amount of coolant in the cooling system. The engine will overheat causing serious engine damage. Observe the coolant temperature dis- play (컄 page 108).

251

Practical hints What to do if …

Display

COOLANT STOP, ENGINE OFF!

Warning!

Driving when your engine is badly overheat- ed can cause some fluids which may have leaked into the engine compartment to catch fire. You could be seriously burned.

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

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

252

Possible cause The coolant is too hot.

Suggested solution 왘 Stop the vehicle and turn off

Category

the engine.

왘 Only start the engine again af- ter the message disappears. You could otherwise damage the engine.

During severe operating conditions and stop-and-go city traffic, the coolant tem- perature may rise close to 248°F (120°C).

The engine should not be operated with the coolant temperature above 248°F (120°C). Doing so may cause serious engine damage which is not covered by the Mercedes-Benz Limited Warranty.

Display

COOLANT STOP, ENGINE OFF!

Practical hints What to do if …

Possible cause The poly-V-belt could be broken.

Suggested solution 왘 Stop immediately and check

Category

the poly-V-belt.

If it is broken: 왘 Do not continue to drive. Oth- erwise the engine will overheat due to an inoperative water pump which may result in damage to the engine. Notify an authorized Mercedes-Benz Light Truck Center.

If it is in order: 왘 Do not continue to drive the vehicle with this message dis- played. Doing so could result in serious engine damage that is not covered by the Mercedes-Benz Limited War- ranty.

COOLANT VISIT WORKSHOP!

The cooling fan for the coolant is malfunctioning.

왘 Observe the coolant tempera-

ture display (컄 page 108).

왘 Have the fan replaced as soon

as possible.

253

Practical hints What to do if …

CRUISE CONTROL VISIT WORKSHOP!

DOOR OPEN!

ENGINE AIR FILTER VISIT WORKSHOP!

ENGINE OIL LEVEL STOP, ENGINE OFF!

ENGINE OIL LEVEL CHECK LEVEL!

ENGINE OIL LEVEL REDUCE OIL LEVEL!

Possible cause Cruise control is malfunctioning.

Suggested solution 왘 Visit an authorized

Mercedes-Benz Light Truck Center.

왘 Close the doors.

왘 Visit an authorized

Mercedes-Benz Light Truck Center as soon as possible.

왘 Carefully bring the vehicle to a

halt as soon as possible.

왘 Turn off the engine. 왘 Add engine oil and check the engine oil level (컄 page 218).

왘 Check the engine oil level

(컄 page 218) and add oil as re- quired.

왘 Have oil siphoned. Observe all

legal requirements with re- spect to its disposal.

You are attempting to drive with one or more doors open. The engine filter is clogged and must be replaced.

There is no oil in the engine. There is a danger of engine damage. See also comments on the following page.

The engine oil level is too low. See also comments on the following page. You have added too much engine oil. There is a risk of damaging the en- gine or the catalytic converter. See also comments on the following page.

Category

Display Ñ

254

Display

ENGINE OIL VISIT WORKSHOP!

Possible cause The engine oil has dropped to a crit- ical level.

ENGINE OIL LEVEL VISIT WORKSHOP!

There is water in the oil. The measuring system is malfunc- tioning.

Practical hints What to do if …

Suggested solution 왘 Check the engine oil level

(컄 page 218) and add oil as re- quired.

왘 If you must add engine oil fre-

quently, have the engine checked for possible leaks.

왘 Have the oil checked. 왘 Have the measuring system

checked by an authorized Mercedes-Benz Light Truck Center.

Category

When the ENGINE OIL LEVEL – CHECK LEVEL! message appears while the engine is running and at operating temperature, the engine oil level has dropped to approx- imately the minimum mark on the dipstick. When this occurs, the warning will first come on intermittently and then stay on if the oil level drops further.

If no oil leaks are noted, continue to drive to the nearest service station where the engine oil should be topped to the “full” mark on the dipstick with an approved oil.

The engine oil level warnings should not be ignored. Extended driving with the symbol displayed could result in se- rious engine damage that is not cov- ered by the Mercedes-Benz Limited Warranty.

255

Practical hints What to do if …

Display 3 (Canada

only)

; (USA only)

ELECTRIC BRAKE BOOSTER VISIT WORKSHOP!

Possible cause The EBB has detected a malfunction and has switched off. The brake system is still functioning normally but without the EBB avail- able.

ESP

DISPLAY DEFECTIVE VISIT WORKSHOP!

The ESP or the ESP display is mal- functioning.

Category

Suggested solution 왘 Continue driving with added

caution.

왘 Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of accident. 왘 Continue driving with added

caution.

왘 Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of accident.

256

Practical hints What to do if …

Display ESP

ELEC. STABIL. PROG. NOT AVAILABLE

Possible cause The ESP is deactivated because of a malfunction or interrupted power supply. The ABS might not be opera- tional. The system must be resynchronized.

Suggested solution 왘 With vehicle stationary and the engine running, turn the steer- ing wheel completely to the left and then to the right to synchronize the ESP.

Category

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

caution.

왘 Visit an authorized

Mercedes-Benz Light Truck Center as soon as possible.

Failure to follow these instructions increases the risk of accident. The display will clear itself after driving a short distance at more than 12 mph (20 km/h). 왘 When the voltage is above this value again, the ESP is opera- tional again.

왘 If necessary, have the genera-

tor and battery checked.

257

The ESP is temporarily unavailable. The self-diagnosis has not been completed. The charging voltage has fallen be- low 10 volts and the ESP has switched off.

caution.

Suggested solution 왘 Continue driving with added

왘 Have the system checked at an authorized Mercedes-Benz Light Truck Center as soon as possible.

Possible cause The ESP is switched off due to a mal- function or an interruption in the power supply. The brake system is still functioning normally but without the ESP avail- able. If in addition the ABS is malfunction- ing, only partial engine output will be available. This display appears if button ì or í on the multifunction steer- ing wheel is pressed and the vehicle is not equipped with a telephone. You are driving with the hood open. 왘 Close the hood (컄 page 217).

Failure to follow these instructions increases the risk of accident.

Category

Practical hints What to do if …

Display ESP

ELEC. STABIL. PROG. VISIT WORKSHOP!

ì

FUNCTION NOT AVAILABLE!

HOOD OPEN!

258

Practical hints What to do if …

Display

AUTOM. LIGHT ON REMOVE KEY! REPLACE KEY VISIT WORKSHOP!

3RD BRAKE LAMP CHECK LAMP!

ADD. TURN SIG LAMP, LH CHECK LAMP!

ADD. TURN SIG LAMP, RH CHECK LAMP!

AUTOM. LIGHT ON REMOVE KEY!

Possible cause You have forgotten to remove the key. No additional code available for SmartKey.

The high mounted brake lamp is mal- functioning. This message will only appear if all light emitting diodes have stopped working. The left turn signal in the side mirror is malfunctioning. This message will only appear if all light emitting diodes have stopped working. The right turn signal in the side mir- ror is malfunctioning. This message will only appear if all light emitting diodes have stopped working. You have left the key in the starter switch.

Suggested solution 왘 Remove the key from the

starter switch.

왘 Visit an authorized

Mercedes-Benz Light Truck Center.

왘 Visit an authorized

Mercedes-Benz Center as soon as possible.

왘 Have the LEDs replaced as

soon as possible.

왘 Have the LEDs replaced as

soon as possible.

왘 Remove key from the starter

switch.

Category

259

Practical hints What to do if …

BRAKE LAMP VISIT WORKSHOP!

BRAKE LAMP, L CHECK LAMP!

BRAKE LAMP, R CHECK LAMP!

Possible cause Brake lamp illumination is delayed or lamp is permanently on.

The left brake lamp is malfunction- ing.

The right brake lamp is malfunction- ing.

DISPLAY DEFECTIVE VISIT WORKSHOP!

The display for the lamps or the sys- tem is malfunctioning.

FRONT FOGLAMP, L CHECK LAMP! FRONT FOGLAMP, R CHECK LAMP! HIGH BEAM, L CHECK LAMP! HIGH BEAM, R CHECK LAMP!

The left front fog lamp is malfunc- tioning. The right front fog lamp is malfunc- tioning. The left high beam lamp is malfunc- tioning. The right high beam lamp is malfunc- tioning.

Suggested solution 왘 Visit an authorized

Mercedes-Benz Light Truck Center as soon as possible.

왘 Visit an authorized

Mercedes-Benz Center as soon as possible.

왘 Visit an authorized

Mercedes-Benz Center as soon as possible.

왘 Visit an authorized

Mercedes-Benz Light Truck Center as soon as possible. 왘 Replace the bulb as soon as

possible.

왘 Replace the bulb as soon as

possible.

왘 Replace the bulb as soon as

possible.

왘 Replace the bulb as soon as

possible.

Category