2013 Mercedes-benz GL Class Owners Manual

operated.

160 Driving

i The engine can be turned off while the

vehicle is in motion by pressing and holding the Start/Stop button for approximately three seconds. This function operates independently from the ECO start/stop automatic engine switch-off function.

Key positions with KEYLESS-GO

Switching on the ignition X Press Start/Stop button : twice.

The ignition is switched on.

i The power supply is switched off again if:

Rthe driver's door is opened and Ryou press Start/Stop button : once

when in this position.

As soon as the ignition is switched on, all the indicator lamps in the instrument cluster light up. If an indicator lamp does not go out after starting the engine or lights up while driving, see (Y page 317). X Insert Start/Stop button : into ignition

lock ;.

i When you insert Start/Stop button : into ignition lock ;, the system needs approximately two seconds recognition time. You can then use Start/Stop button :.

Activating power supply X If Start/Stop button : has not yet been pressed, this corresponds to the SmartKey being removed from the ignition. X Press Start/Stop button : once.

The power supply is switched on. You can now activate the windshield wipers, for example.

i The power supply is switched off again if:

Rthe driver's door is opened and Ryou press Start/Stop button : twice

when in this position.

Start/Stop button = USA only ? Canada only

Starting the engine Important safety notes G WARNING Combustion engines emit poisonous exhaust gases such as carbon monoxide. Inhaling these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave the engine running in enclosed spaces without sufficient ventilation.

i Vehicles with a gasoline engine: the catalytic converter is preheated for up to 30seconds after a cold start. The sound of the engine may change during this time.

Automatic transmission X Shift the transmission to position

P(Y page 166). The transmission position display in the multifunction display shows P(Y page 166).

i You can also start the engine when the

transmission is in position N.

Starting procedure with the SmartKey X To start a gasoline engine: turn the

SmartKey to position 3 (Y page 159) in the ignition lock and release it as soon as the engine is running.

X To start a diesel engine: turn the

SmartKey to position 2 (Y page 159) in the ignition lock. The % preglow indicator lamp in the instrument cluster lights up.

X When the preglow indicator lamp %

goes out, turn the SmartKey to position 3 (Y page 159) and release it as soon as the engine is running.

i You can start the engine without preglow

if the engine is warm.

Using KEYLESS-GO to start the engine G WARNING As long as the SmartKey is in your vehicle, the vehicle can be started. Therefore, never leave children unattended in the vehicle, as they could otherwise accidentally start the engine. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury.

X Depress the brake pedal and keep it

depressed.

X To start a gasoline engine: press the Start/Stop button (Y page 159) once. The engine starts.

X To start a diesel engine: press the Start/

Stop button (Y page 159) once. Preglow is activated and the engine starts.

i The Start/Stop button can be used to

start the vehicle without inserting the

Driving 161

SmartKey into the ignition lock. The Start/ Stop button must be inserted into the ignition lock and the SmartKey must be in the vehicle. This mode for starting the engine operates independently of the ECO start/stop automatic engine start function.

Pulling away Automatic transmission G WARNING If the engine speed is above the idling speed and you engage transmission position D or R, the vehicle could pull away suddenly. There is a risk of an accident. When engaging transmission position D or R, always firmly depress the brake pedal and do not simultaneously accelerate.

X Depress the brake pedal and keep it

X Shift the transmission to position D or

depressed.

R(Y page 166).

X Release the brake pedal. X Carefully depress the accelerator pedal.

The electric parking brake (Y page 179) is automatically released. The red F (USA only) or ! (Canada only) indicator lamp in the instrument cluster goes out.

i It is only possible to shift the transmission

from position P to the desired position if you depress the brake pedal. Only then is the parking lock released. If you do not depress the brake pedal, you can move the DIRECT SELECT lever but the parking lock remains engaged.

i The vehicle locks centrally once you have pulled away. The locking knobs in the doors drop down. You can open the doors from the inside at any time. You can also deactivate the automatic locking feature (Y page 278).

162 Driving

i Upshifts take place at higher engine

speeds after a cold start. This helps the catalytic converter to reach its operating temperature more quickly.

Pulling away with a trailer

To ensure that you do not roll backwards when pulling away on an uphill slope, engage the electric parking brake. X Press and hold handle :.

The electric parking brake continues to brake and prevent the vehicle from rolling backwards. The red F (USA only) or ! (Canada only) indicator lamp in the instrument cluster remains on.

X Depress the accelerator pedal. X As soon as the vehicle/trailer combination is held by the driving force of the engine, release lever :. The electric parking brake is released. The red F (USA only) or ! (Canada only) indicator lamp in the instrument cluster goes out.

Hill start assist G WARNING After a short time, hill start assist will no longer brake your vehicle and it could roll away. There is a risk of an accident and injury. Therefore, quickly move your foot from the brake pedal to the accelerator pedal. Never

leave the vehicle when it is held by hill start assist.

X Remove your foot from the brake pedal.

The vehicle is then held for about a second.

X Pull away. Hill start assist helps you when pulling away forwards or in reverse on an uphill gradient. It holds the vehicle for a short time after you have removed your foot from the brake pedal. This gives you enough time to move your foot from the brake pedal to the accelerator pedal and to depress it before the vehicle begins to roll. Hill start assist will not function if: Ryou are pulling away on a level road or on

a downhill gradient.

Rthe transmission is in position N. Rthe electric parking brake is applied. RESP® is malfunctioning.

ECO start/stop function Important safety notes G WARNING If the engine is switched off automatically and you exit the vehicle, the engine is restarted automatically. The vehicle may begin moving. There is a risk of accident and injury. If you wish to exit the vehicle, always turn off the ignition and secure the vehicle against rolling away.

General notes

: ECO start/stop display

The ECO start/stop function switches the engine off automatically when the vehicle stops moving. The engine starts automatically when the driver wants to pull away again. The ECO start/stop function thereby helps you to reduce the fuel consumption and emissions of your vehicle. The system is operational when the ¤ symbol is shown in green in the multifunction display. If not all conditions for automatic engine switch-off (Y page 163) are fulfilled, the ¤ symbol is shown in yellow in the multifunction display. If the ECO start/stop function has been manually deactivated (Y page 163) or a malfunction has caused the system to be deactivated, the ¤ symbol is not displayed. If the engine is switched off and the ¤ symbol is shown in green in the multifunction display, the engine has been switched off automatically. However, all vehicle systems remain active.

Deactivating/activating the ECO start/ stop function

ECO button

Driving 163

X To switch off: press button :.

Indicator lamp ; on button : and the ¤ symbol in the multifunction display go out.

X To switch on: press button :.

Indicator lamp ; lights up. If all conditions for automatic engine switch-off (Y page 163) are fulfilled, the ¤ symbol is shown in green in the multifunction display. If not all conditions for automatic engine switch-off are fulfilled, the (Y page 163)¤ symbol is shown in yellow in the multifunction display. If this is the case, the ECO start/stop function is not available.

i If indicator lamp ; is off, the ECO start/

stop function has been deactivated manually or as the result of a malfunction. The engine will then not be switched off automatically when the vehicle stops.

Automatic engine switch-off If the vehicle is braked to a standstill in D or N, the ECO start/stop function switches off the engine automatically. The ECO start/stop function is operational and the ¤ symbol is displayed in green in the multifunction display, if: Rthe indicator lamp in the ECO button is lit

green.

Rno off-road program has been selected. Rthe vehicle is stationary. Rthe outside temperature is within the

comfort range.

Rthe engine is at normal operating

temperature.

Rthe set temperature for the vehicle interior

has been reached.

Rthe battery is sufficiently charged. Rthe system detects that the windshield is not fogged up when the air-conditioning system is switched on.

164 Driving

Rthe brake system requires this. Rthe temperature in the vehicle interior

deviates from the set range.

Rthe system detects moisture on the windshield when the air-conditioning system is switched on.

Rthe charge level of the battery is too low. i Shifting the transmission to position P

does not start the engine.

Rthe hood is closed. Rthe driver's door is closed and the driver's

seat belt is fastened.

If conditions for automatic engine switch-off have not been fulfilled, the ¤ symbol will be shown in yellow. i If you shift the transmission from R to D,

the ECO start/stop function is available again once the ¤ symbol reappears in green in the multifunction display.

i You can still activate the HOLD function when the vehicle is stationary, even if the engine has been switched off automatically. It is then not necessary to continue depressing the brake pedal during the automatic stop phase. When you depress the accelerator pedal, the engine starts automatically and the braking effect of the HOLD function is deactivated. Depress the accelerator pedal carefully, as the engine must be started first.

i During automatic engine switch-off, the climate control system only operates at a reduced capacity. If you require full climate control capacity, the ECO start/stop function can be deactivated by pressing the ECO button (Y page 163).

Automatic engine start The engine starts automatically if: Ryou switch off the ECO start/stop function

by pressing the ECO button.

Ryou release the brakes when in

transmission position D or N and when the HOLD function is not active.

Ryou depress the accelerator pedal. Ryou engage reverse gear R. Ryou move the transmission out of position

P.

Ryou switch to an off-road program. Ryou unfasten your seat belt or open the

driver's door.

Rthe vehicle starts to roll.

Driving 165

Problems with the engine Problem The engine does not start. The starter motor can be heard.

Possible causes/consequences and M Solutions RThere is a malfunction in the engine electronics. RThere is a malfunction in the fuel supply. X Try to start the engine again (Y page 160). Avoid excessively

long and frequent attempts to start the engine as these will drain the battery.

The engine does not start. You cannot hear the starter motor.

The engine is not running smoothly and is misfiring.

The coolant temperature gauge shows a value above 248 ‡ (120 †).

If the engine does not start after several attempts: X Consult a qualified specialist workshop. The on-board voltage is too low because the battery is too weak or discharged. X Jump-start the vehicle (Y page 385). If the engine does not start despite attempts to jump-start it: X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high. X Allow the starter motor to cool down for approximately two

minutes.

X Try to start the engine again. If the engine still does not start: X Consult a qualified specialist workshop. There is a malfunction in the engine electronics or in a mechanical component of the engine management system. X Only depress the accelerator pedal slightly. X Have the cause rectified immediately at a qualified specialist

workshop. Otherwise, non-combusted fuel may get into the catalytic converter and damage it.

The coolant level is too low. The coolant is too hot and the engine is no longer being cooled sufficiently. X Stop as soon as possible and allow the engine and the coolant

to cool down.

X Check the coolant level (Y page 363). Observe the warning

notes as you do so and add coolant if necessary.

166 Automatic transmission

Automatic transmission Important safety notes G WARNING If the engine speed is above the idling speed and you engage transmission position D or R, the vehicle could pull away suddenly. There is a risk of an accident. When engaging transmission position D or R, always firmly depress the brake pedal and do not simultaneously accelerate. G WARNING The automatic transmission switches to neutral position N when you switch off the engine. The vehicle may roll away. There is a risk of an accident. After switching off the engine, always switch to parking position P. Prevent the parked vehicle from rolling away by applying the parking brake.

DIRECT SELECT lever Overview of transmission positions

transmission position P, R, N or D appears in the transmission position display (Y page 166) in the multifunction display.

Transmission position and drive program display

Transmission position and drive program display : Transmission position display ; Drive program display The current transmission position and drive program appear in the multifunction display. i The arrows in the transmission position

display show how and into which transmission positions you can change using the DIRECT SELECT lever.

Engaging park position P ! If the engine speed is too high or the

vehicle is moving, do not shift the automatic transmission directly from D to R, from R to D or directly to P. The automatic transmission could otherwise be damaged.

P Park position with parking lock R Reverse gear N Neutral D Drive The DIRECT SELECT lever is on the right of the steering column. i The DIRECT SELECT lever always returns

to its original position. The current

P Park position with parking lock R Reverse gear N Neutral D Drive

Automatic transmission 167

X Push the DIRECT SELECT lever in the

direction of arrow P.

Further information on the ECO start/stop function (Y page 162).

i The automatic transmission shifts into

park position P automatically: Rif you open the driver's door while the

vehicle is stationary in transmission position D or R

Rif you open the door while traveling at

very low speeds in transmission position D or R

Engaging park position P automatically Park position P is automatically engaged if: Ryou switch off the engine using the SmartKey and remove the SmartKey

Ryou switch off the engine using the Start/ Stop button and open one of the front doors

Rthe HOLD (Y page 207) or DISTRONIC PLUS (Y page 193) function brake your vehicle until it is stationary and at least one of the following conditions is fulfilled:

there is a system malfunction. the vehicle is on a steep uphill or downhill gradient. The electric parking brake is then also applied.

Engaging reverse gear R ! Only shift the automatic transmission to

R when the vehicle is stationary.

X When the vehicle is stationary, depress the

brake pedal.

X Push the DIRECT SELECT lever up past the

first point of resistance.

Neutral N with ECO start/stop function activated The ECO start/stop function switches the engine off automatically if: Rthe vehicle is braked until stationary while

in neutral N and

Ryou continue to depress the brake pedal

Shifting to neutral N G WARNING When leaving the SmartKey in the starter switch, do not leave children unattended in the vehicle. It is possible for children to switch on the ignition which could result in unsupervised use of vehicle equipment. Unsupervised use of vehicle equipment could result in an accident and/or serious personal injury.

X When the vehicle is stationary, depress the

brake pedal.

X Push the DIRECT SELECT lever up or down

to the first point of resistance.

If the engine has been switched off, the automatic transmission automatically switches to N. If you want the automatic transmission to remain in neutral N, e.g. when having the vehicle cleaned in an automatic car wash with a towing system, observe the following notes: Using the SmartKey: Rmake sure that the ignition is switched on. Rwhen the vehicle is stationary, depress the

brake pedal and keep it depressed.

Rshift to neutral N. Rrelease the brake pedal. Rif the electric parking brake is engaged,

release it.

Rswitch off the ignition and leave the

SmartKey in the ignition lock.

Using KEYLESS-GO: Rmake sure that the ignition is switched on. Rwhen the vehicle is stationary, depress the

brake pedal and keep it depressed.

Rengage park position P. Rrelease the brake pedal. Rremove the Start/Stop button from the

ignition lock.

168 Automatic transmission

Rinsert the SmartKey into the ignition lock. Rswitch on the ignition. Rdepress the brake pedal and keep it

depressed.

Rshift to neutral N. Rrelease the brake pedal. Rif the electric parking brake is engaged,

release it.

Rswitch off the ignition and leave the

SmartKey in the ignition lock.

Drive position D with ECO start/stop function activated The ECO start/stop function switches the engine off automatically if: Rthe vehicle is braked until stationary while

in transmission position D and

Ryou continue to depress the brake pedal Further information on the ECO start/stop function (Y page 162).

Engaging drive position D X When the vehicle is stationary, depress the

brake pedal.

X Push the DIRECT SELECT lever down past

the first point of resistance.

Transmission positions B Park position

Do not shift the transmission into position P(Y page 178) unless the vehicle is stationary. The parking lock should not be used as a brake when parking. Always apply the electronic parking brake in addition to the parking lock in order to secure the vehicle. If the vehicle electronics are malfunctioning, the transmission may be locked in position P. Have the vehicle electronics checked immediately at a qualified specialist workshop. The automatic transmission shifts to P automatically if you: Rremove the SmartKey Rswitch off the engine when in R or D and open one of the front doors

C Reverse gear

Only shift the transmission to R when the vehicle is stationary.

A Neutral

Do not shift the transmission to N while driving. Otherwise, the automatic transmission could be damaged. No power is transmitted from the engine to the drive wheels. Releasing the brakes will allow you to move the vehicle freely, e.g. to push it or tow it. If ESP® is deactivated or faulty: only shift the transmission to position N if the vehicle is in danger of skidding, e.g. on icy roads. If you switch off the engine using the SmartKey or the Start/Stop button, the automatic transmission shifts to neutral N automatically. ! Rolling in neutral N can damage

the drive train.

7 Drive

The automatic transmission changes gear automatically. All forward gears are available.

Changing gear The automatic transmission shifts to the individual gears automatically when it is in transmission position D. This automatic gearshifting behavior is determined by: Ra possible limitation of the shift range Rthe position of the accelerator pedal Rthe road speed

Automatic transmission 169

Driving tips Kickdown Use kickdown for maximum acceleration: X Depress the accelerator pedal beyond the

pressure point. The transmission shifts to a lower gear depending on the engine speed.

X Ease off the accelerator pedal once the

desired speed is reached. The automatic transmission shifts back up.

Rocking the vehicle free Shifting the transmission repeatedly between gears D and R may help to free the vehicle if it has become stuck in slush or snow. The vehicle's engine management restricts repeated shifting between gears up to a maximum speed of 5 mph (9 km/h). To shift back and forth between transmission positions D and R, move the selector lever up and down beyond the pressure point.

Towing a trailer X Drive in the middle of the engine speed

range on uphill gradients.

X Shift down to shift range 3 or

2(Y page 170) depending on the uphill or downhill gradient, even if cruise control, cruise control or DISTRONIC PLUS is activated.

170 Automatic transmission

Program selector button General notes

Program selector button on vehicles with the ON&OFFROAD package X Briefly press program selector button :. The letter M appears in the multifunction display. The manual drive program M is activated.

The program selector button allows you to choose between different driving characteristics.

Steering wheel paddle shifters

In the manual drive program you can change gears manually using steering wheel paddle shifters : and ;(Y page 171). You can restrict or derestrict shift ranges using steering wheel paddle shifters : and ;(Y page 170). i You can only change gear with the

steering wheel paddle shifters when the transmission is in position D.

Shift ranges Introduction In transmission position D, you can use the steering wheel paddle shifters to restrict or derestrict the shift range for the automatic transmission (Y page 170). The shift range selected is shown in the multifunction display. The automatic transmission shifts only as far as the selected gear. Driving situations = You can use the engine's braking

effect.

5 The braking effect of the engine can be utilized on downhill gradients or when driving: Ron steep mountain roads Rin mountainous terrain Rin arduous conditions

4 The braking effect of the engine can

be utilized on extremely steep downhill gradients and long downhill stretches.

Restricting the shift range X Pull the left-hand steering wheel paddle

shifter. The automatic transmission shifts down one gear and restricts the shift range to the relevant gear.

i If the engine exceeds the maximum engine speed when shifting down, the automatic transmission protects against engine damage by not shifting down.

i If the maximum engine speed for the shift

range is reached and you continue to accelerate, the automatic transmission shifts up, even if the shift range is restricted. This prevents the engine from overrevving.

Automatic transmission 171

Derestricting the shift range X Pull the right-hand steering wheel paddle

shifter. The shift range is derestricted.

Clearing the shift range restriction X Pull and hold the right-hand steering wheel paddle shifter until D is shown again in the multifunction display. The automatic transmission shifts from the current shift range directly to D.

or X Use the DIRECT SELECT lever to shift the

transmission to position D. The automatic transmission shifts from the current shift range directly to D.

Selecting the ideal shift range X Pull the left-hand steering wheel paddle

shifter and hold it in position. The automatic transmission shifts to the gear which allows optimum acceleration and deceleration. To do this, the automatic transmission shifts down one or more gears.

Manual drive program Switching on the manual drive program In manual drive program M, you can change gear using the steering wheel paddle shifters if the transmission is in position D. You can see the currently selected drive program and which gear is engaged in the multifunction display. X Vehicles with the ON&OFFROAD

package: press the program selector button (Y page 170). The letter M appears in the multifunction display.

Upshifting X Pull the right-hand steering wheel paddle

shifter (Y page 170). The automatic transmission shifts up to the next gear.

Downshifting X Pull the left-hand steering wheel paddle

shifter (Y page 170). The automatic transmission shifts down to the next gear.

Maximum acceleration X Pull the left-hand steering wheel paddle shifter until the transmission selects the optimum gear according to the speed.

i If you slow down or stop without shifting

down, the automatic transmission automatically shifts down.

Kickdown You can also use kickdown for maximum acceleration in manual drive program M. X Depress the accelerator pedal beyond the

pressure point. The transmission shifts to a lower gear depending on the engine speed.

X Shift back up once the desired speed is

reached.

i If you apply full throttle, the automatic transmission shifts up to the next gear when the maximum engine speed is reached. This prevents the engine from overrevving.

Switching off the manual drive program X Vehicles with the ON&OFFROAD

package: press the program selector button (Y page 170). The M message in the multifunction display goes out.

172 Refueling

Problems with the transmission Problem The transmission has problems shifting gear.

Possible causes/consequences and M Solutions The transmission is losing oil. X Have the transmission checked at a qualified specialist

workshop immediately.

The acceleration ability is deteriorating. The transmission no longer changes gear.

The transmission is in emergency mode. It is only possible to shift into second gear and reverse gear. X Stop the vehicle. X Shift the transmission to position P. X Switch off the engine. X Wait at least ten seconds before restarting the engine. X Shift the transmission to position D or R.

If D is selected, the transmission shifts into second gear; if R is selected, the transmission shifts into reverse gear.

X Have the transmission checked at a qualified specialist

workshop immediately.

Transfer case ! Performance tests may only be carried out on a 2-axle dynamometer. The brake system or transfer case could otherwise be damaged. Contact a qualified specialist workshop for a performance test.

! Because ESP® is an automatic system, the engine and ignition must be switched off (SmartKey in position 0 or 1 or Start/ Stop button in position 0 or 1) when the electric parking brake is being tested on a brake dynamometer (maximum 10 seconds). Braking triggered automatically by ESP® may seriously damage the brake system. ! Vehicles with 4MATIC must not be towed with either the front or the rear axle raised, as doing so will damage the transmission. This section is only valid for vehicles with 4- wheel drive (4MATIC). Power is always transmitted to both axles.

Refueling Important safety notes G WARNING Fuel is highly flammable. If you handle fuel incorrectly, there is a risk of fire and explosion. You must avoid fire, naked flames, creating sparks and smoking. Switch off the engine and, if applicable, the auxiliary heating before refueling. G WARNING Fuel is poisonous and hazardous to health. There is a risk of injury. You must make sure that fuel does not come into contact with your skin, eyes or clothing and that it is not swallowed. Do not inhale fuel vapors. Keep fuel away from children.

Refueling 173

If you or others come into contact with fuel, observe the following: RWash away fuel from skin immediately

using soap and water.

RIf fuel comes into contact with your eyes, immediately rinse them thoroughly with clean water. Seek medical assistance without delay.

RIf fuel is swallowed, seek medical

assistance without delay. Do not induce vomiting.

RImmediately change out of clothing which

has come into contact with fuel. G WARNING Vehicles with a diesel engine: If you mix diesel fuel with gasoline, the flash point is lower than that of pure diesel fuel. When the engine is running, exhaust system components could overheat without being noticed. There is a risk of fire. Never refuel with gasoline. Never mix gasoline with diesel fuel. G WARNING Electrostatic buildup can create sparks and ignite fuel vapors. There is a risk of fire and explosion. Touch the vehicle body immediately before opening the fuel filler cap. Any existing electrostatic buildup is thereby discharged.

! Do not use gasoline to refuel vehicles with a diesel engine. Do not use diesel to refuel vehicles with a gasoline engine. Do not switch on the ignition if you accidentally refuel with the wrong fuel. Otherwise, the fuel will enter the fuel system. Even small amounts of the wrong fuel could result in damage to the fuel system and the engine. The repair costs are high. Notify a qualified specialist workshop and have the fuel tank and fuel lines drained completely.

! Overfilling the fuel tank could damage the

fuel system.

! Take care not to spill any fuel on painted surfaces. You could otherwise damage the paintwork.

! Use a filter when refueling from a fuel can. Otherwise, the fuel lines and/or injection system could be blocked by particles from the fuel can.

If you overfill the fuel tank, fuel could spray out when the fuel pump nozzle is removed. Further information on fuel and on fuel grades can be found in the "Fuel" section (Y page 435).

Refueling Opening/closing the fuel filler flap

: To open the fuel filler flap ; To insert the fuel filler cap = Fuel type to be used ? Tire pressure table The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or with KEYLESS- GO. The position of the fuel filler cap is displayed 8 in the instrument cluster. The arrow next to the filling pump indicates the side of the vehicle.

174 Refueling

Opening X Switch off the engine. X Remove the SmartKey from the ignition

lock.

X KEYLESS-GO: open the driver’s door.

This corresponds to SmartKey position 0: "SmartKey removed". The driver’s door can be closed again.

X Press the fuel filler flap in the direction of

arrow :. The fuel filler flap swings up.

X Turn the fuel filler flap counter-clockwise

and remove it.

X Insert the fuel filler cap into the holder bracket on the inside of filler flap ;.

X Completely insert the filler neck of the fuel

pump nozzle into the tank and refuel. X Only fill the tank until the pump nozzle

switches off.

i Do not add any more fuel after the pump

stops filling for the first time. Otherwise, fuel may leak out.

Closing X Replace the cap on the filler neck and turn

clockwise until it engages audibly.

X Close the fuel filler flap. i Close the fuel filler flap before locking the

vehicle.

i If you are driving with the fuel filler cap open, the 8 reserve fuel warning lamp flashes. A message appears in the multifunction display (Y page 299). In addition, the ; Check Engine warning lamp may light up (Y page 324).

Problems with fuel and the fuel tank Problem Fuel is leaking from the vehicle.

The engine does not start.

The fuel filler flap cannot be opened.

Refueling 175

Possible causes/consequences and M Solutions The fuel line or the fuel tank is faulty. G WARNING Risk of explosion or fire. X Turn the SmartKey to position 0 in the ignition lock and remove

it immediately (Y page 159).

X Do not restart the engine under any circumstances. X Consult a qualified specialist workshop. The fuel tank of a vehicle with a diesel engine has been run completely dry. X Refuel the vehicle with at least 5.3 US qt (5 liters) of diesel. X Turn the ignition on for approximately ten seconds

X Start the engine continuously for up to ten seconds until it runs

(Y page 159).

smoothly.

(Y page 159).

it runs smoothly.

If the engine does not start: X Turn the ignition on again for approximately ten seconds

X Start the engine again continuously for up to ten seconds until

If the engine does not start after three attempts: X Consult a qualified specialist workshop. The fuel filler flap is not unlocked. or The SmartKey battery is discharged. X Unlock the vehicle (Y page 81). or X Unlock the vehicle using the mechanical key (Y page 82). The fuel filler flap is unlocked, but the opening mechanism is jammed. X Consult a qualified specialist workshop.

176 Refueling

DEF (BlueTEC vehicles only) Important notes on use To function properly, BlueTEC exhaust gas aftertreatment must be operated with the reducing agent DEF. When the supply of DEF is almost used up, the Check Additive See Operator's Manual message is shown in the multifunction display. When the DEF supply drops to a minimum, the Remaining Starts: 16 message is shown in the multifunction display. If the Remaining Starts: 16 message appears in the multifunction display, you can start the engine another 16 times. If DEF is not refilled, you will subsequently be unable to start the engine. Refill the DEF tank with approximately 1 gal (3.8 l) of DEF or have the DEF tank refilled at a qualified specialist workshop. i If you drive the vehicle faster than 10 mph (16 km/h), the Check Additive See Operator's Manual message goes out after approximately one minute. If the outside temperature is lower than 12 ‡ (Ò11) †, damage may occur when adding DEF. If DEF is frozen and there is an active warning indicator, it may not be possible to add DEF. Park the vehicle in a warmer place, e.g. in a garage, until DEF has become fluid again. It will then be possible to add DEF again. Alternatively, have the DEF tank refilled at a qualified specialist workshop. Further information about BlueTEC exhaust gas aftertreatment and DEF is available at any authorized Mercedes-Benz Center.

Important safety notes on the refilling procedure DEF is a water-soluble fluid for the exhaust gas aftertreatment of diesel engines. It is: Rnot poisonous Rcolorless and odorless Rnot flammable When you open the DEF container, small amounts of ammonia vapor may be released. Ammonia vapors have a pungent odor and are particularly irritating to the skin, to mucous membranes and to the eyes. You may experience a burning sensation in your eyes, nose and throat. Coughing and watering of the eyes are possible. Do not inhale ammonia vapors. Fill the DEF tank only in well-ventilated areas. DEF must not come into contact with your skin, eyes or clothing and must not be swallowed. Keep DEF away from children. If you or other persons come into contact with DEF, observe the following: RRinse DEF from your skin immediately with

soap and water.

RIf DEF comes into contact with your eyes,

immediately rinse them thoroughly with clean water. Seek medical assistance without delay.

RIf DEF has been swallowed, rinse your mouth out immediately. Drink plenty of water. Seek medical assistance without delay.

RChange out of clothing contaminated with

DEF immediately.

! Only use DEF in accordance with

ISO 22241. Do not mix any additives with DEF, and do not dilute DEF with water. This may destroy the BlueTEC exhaust gas aftertreatment system.

! The vehicle must be parked on level

ground to fill the DEF tank. The DEF tank can only be filled as intended with the vehicle parked on a level surface. This avoids false level readings. Filling the tank

is not permitted if the vehicle is not parked on a level surface. There is a danger of overfilling, which could result in damage to components of the BlueTEC exhaust gas aftertreatment.

! Rinse surfaces that have come into

contact with DEF immediately with water or remove DEF using a damp cloth and cold water. If the DEF has already crystallized, use a sponge and cold water to clean it. DEF residues crystallize after time and contaminate the affected surfaces.

! DEF is not a fuel additive and must not be added to the fuel tank. If DEF is added to the fuel tank, this can lead to engine damage.

For further information on DEF, see (Y page 438).

Opening the DEF filler cap

The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or with KEYLESS- GO. X Switch the ignition off. X Press the fuel filler flap in the direction of

arrow :. The fuel filler flap swings up.

X Turn blue DEF filler cap ; counter-

clockwise and remove it. DEF filler cap ; is secured with a plastic strip.

Refueling 177

DEF refill bottle ! Only screw on the DEF refill bottle hand-

tight. It could otherwise be damaged.

X Unscrew the protective cap from DEF refill

bottle :.

X Place DEF refill bottle : on the filler neck as shown and screw it on clockwise until hand-tight.

X Press DEF refill bottle : towards the filler

neck. The DEF tank is filled. This may take up to one minute.

i When DEF refill bottle : is no longer

pressed, filling stops and the bottle may be taken off again after being only partially emptied.

X Release DEF refill bottle :. X Turn DEF refill bottle : counter-clockwise

and remove it.

X Screw the protective cap onto DEF refill

bottle : again.

DEF refill bottles can be obtained at many gas stations or at an authorized Mercedes-Benz Center. Refill bottles without a threaded cap do not provide overfill protection. DEF may leak if overfilled. Mercedes Benz offers special refill bottles with a threaded seal. These are available at any authorized Mercedes-Benz Center.

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Closing the DEF filler cap

X Install DEF filler cap ; on the filler neck

and turn it clockwise.

X To close the fuel filler flap, press it in the

direction of arrow :. X Drive faster than 10 mph (16 km/h). The Check Additive See Operator's Manual message goes out after approximately one minute. i If the Check Additive See Operator's Manual message continues to be shown in the multifunction display, you must add more DEF.

Parking Important safety notes G WARNING If flammable materials such as leaves, grass or twigs are exposed to prolonged contact to parts of the exhaust system that heat up, they could ignite. There is a risk of fire. Park the vehicle so that no flammable materials come into contact with parts of the vehicle which are hot. Take particular care not to park on dry grassland or harvested grain fields. G WARNING If you switch off the ignition while driving, safety-relevant functions are only available with limitations, or not at all. This could affect, for example, the power steering and the brake boosting effect. You will require considerably

more effort to steer and brake. There is a risk of an accident. Do not switch off the ignition while driving. G WARNING If you leave children unsupervised in the vehicle, they could set it in motion by, for example: Rreleasing the parking brake Rshifting the automatic transmission out of

the parking position P

Rstarting the engine. They could also operate the vehicle's equipment. There is a risk of an accident and injury. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. Never leave children unsupervised in the vehicle.

! A moving vehicle can lead to damage to the vehicle or damage to the drive train.

To ensure that the vehicle is secured against rolling away unintentionally: Rthe electric parking brake must be applied. Rthe transmission must be in position P and the SmartKey must be removed from the ignition lock.

Ron steep uphill or downhill gradients, turn

the front wheels towards the curb.

Ron steep uphill or downhill gradients, the

front axle of an empty vehicle must be secured, for example with a wheel chock. Ron steep uphill or downhill gradients, the

rear axle of a laden vehicle must be additionally secured, for example with a wheel chock.

Switching off the engine Important safety notes G WARNING The automatic transmission switches to neutral position N when you switch off the

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engine. The vehicle may roll away. There is a risk of an accident. After switching off the engine, always switch to parking position P. Prevent the parked vehicle from rolling away by applying the parking brake.

Using the SmartKey X Apply the electric parking brake. X Shift the transmission to position P. X Turn the SmartKey to position 0 in the

ignition lock and remove it. The immobilizer is activated.

i If you turn off the engine with the

SmartKey and then remove it from the ignition lock or open a front door, the automatic transmission shifts to P automatically. If you shift the automatic transmission to N before switching off the engine, the automatic transmission remains in N even if a door is opened.

Using KEYLESS-GO X Apply the electric parking brake. X Shift the transmission to position P. X Press the Start/Stop button (Y page 159).

The engine stops and all the indicator lamps in the instrument cluster go out.

i If you use the Start/Stop button to switch off the engine, the automatic transmission shifts to N automatically. If you then open one of the front doors, the automatic transmission shifts to P.

i In the event of an emergency, the engine

can be turned off while the vehicle is in motion by pressing and holding the Start/ Stop button for three seconds.

Electric parking brake General notes G WARNING If you leave children unsupervised in the vehicle, they could set it in motion by, for example: Rreleasing the parking brake Rshifting the automatic transmission out of

the parking position P

Rstarting the engine. They could also operate the vehicle's equipment. There is a risk of an accident and injury. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. Never leave children unsupervised in the vehicle.

i The electric parking brake performs a

function test at regular intervals while the engine is switched off. The sounds that can be heard while this is occurring are normal.

Applying/releasing manually

X To engage: push handle :.

When the electric parking brake is engaged, the F (USA only) or ! (Canada only) red indicator lamp lights up in the instrument cluster.

i The electric parking brake can also be applied when the SmartKey is removed.

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X To release: pull handle :.

The red F (USA only) or ! (Canada only) indicator lamp in the instrument cluster goes out.

i The electric parking brake can only be

released: Rif the SmartKey is in position 1 in the

ignition lock or

Rif the ignition was switched on using the

Start/Stop button.

To ensure that you do not roll backwards when pulling away on an uphill slope, engage the electric parking brake (Y page 162).

Applying automatically The electric parking brake is applied automatically: Rif DISTRONIC PLUS brings the vehicle to a

standstill or

Rif the HOLD function is keeping the vehicle

stationary

In addition, at least one of the following conditions must be fulfilled: Rthe engine is switched off. Rthe driver's door is open and the seat belt

is not fastened.

Rthe vehicle is stationary for a lengthy

period.

The red F (USA only) or ! (Canada only) indicator lamp in the instrument cluster lights up.

Releasing automatically The electric parking brake is released automatically when all of the following conditions are fulfilled: Rthe engine is running. Rthe transmission is in position D or R. Rthe seat belt has been fastened. Ryou depress the accelerator pedal. If the transmission is in position R, the trunk lid must be closed.

If your seat belt is not fastened, the following conditions must be fulfilled to automatically release the electric parking brake: Rthe driver's door is closed. Ryou have shifted out of transmission

position P or you have previously driven faster than 2 mph (3 km/h)

Emergency braking

X While driving, push handle : of the electric

parking brake.

The vehicle can also be braked during an emergency by using the electric parking brake. i The vehicle is braked for as long as the

handle of the electric parking brake is pressed. The longer the electric parking brake handle is depressed, the greater the braking force. During braking: Ra warning tone sounds. Rthe Release Park. Brake message appears

Rthe red F (USA only) or ! (Canada

only) indicator lamp in the instrument cluster flashes.

When the vehicle has been braked to a standstill, the electric parking brake is engaged.

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Parking the vehicle for a long period If you leave the vehicle parked for longer than four weeks, the battery may be damaged by exhaustive discharging. X Connecting a trickle charger. i You can obtain information about trickle

chargers from a qualified specialist workshop.

If you leave the vehicle parked up for longer than six weeks, the vehicle may suffer damage as a result of lack of use. X Visit a qualified specialist workshop and

seek advice.

Driving tips General notes Important safety notes G WARNING Always remember that you must concentrate primarily on driving the vehicle. The driver's concentration must always be directed primarily at road traffic. For your own safety and that of others, we recommend that you stop the vehicle at a safe place and in accordance with the traffic conditions before making or accepting a phone call. Comply with all legal requirements if you use the telephone while driving. Use the hands- free system and only use the telephone when road, weather and traffic conditions permit. In some jurisdictions, it is forbidden for drivers to use mobile phones while driving. Only operate COMAND (Cockpit Management and Data System) in compliance with all legal requirements and when the road, weather and traffic conditions permit. You may otherwise not be able to observe the traffic conditions, endangering yourself and others. Remember that your vehicle covers a distance of 44 ft (approximately 14 m) a second when it is traveling at only 30 mph (approximately 50 km/h).

G WARNING If you switch off the ignition while driving, safety-relevant functions are only available with limitations, or not at all. This could affect, for example, the power steering and the brake boosting effect. You will require considerably more effort to steer and brake. There is a risk of an accident. Do not switch off the ignition while driving.

Drive sensibly – save fuel Observe the following tips to save fuel: X The tires should always be inflated to the

recommended tire pressure. X Remove unnecessary loads. X Remove roof carriers when they are not

needed.

X Warm up the engine at low engine speeds. X Avoid frequent acceleration or braking. X Have all maintenance work carried out as

indicated by the service intervals in the Maintenance Booklet or by the service interval display.

Fuel consumption also increases when driving in cold weather, in stop-and-go traffic and in mountainous terrain.

Drinking and driving G WARNING Drinking and driving and/or taking drugs and driving are very dangerous combinations. Even a small amount of alcohol or drugs can affect your reflexes, perceptions and judgment. The possibility of a serious or even fatal accident are greatly increased when you drink or take drugs and drive. Do not drink or take drugs and drive or allow anyone to drive who has been drinking or taking drugs.

182 Driving tips

Exhaust check G WARNING Combustion engines emit poisonous exhaust gases such as carbon monoxide. Inhaling these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave the engine running in enclosed spaces without sufficient ventilation.

Certain engine systems are designed to keep the level of poisonous components in exhaust fumes within legal limits. These systems only work at peak efficiency if they are serviced exactly in accordance with the manufacturer's specifications. For this reason, all work on the engine must be carried out by qualified and authorized Mercedes- Benz technicians. The engine settings must not be changed under any circumstances. Furthermore, all specific service work must be carried out at regular intervals and in accordance with the Mercedes-Benz service requirements. Details can be found in the Maintenance Booklet.

Short journey ! Vehicles with a diesel particle filter: if the vehicle is predominantly used to travel short distances, this can lead to malfunctions in the automatic cleaning of the diesel particle filter. This can result in fuel collecting in the engine oil and causing engine failure. Therefore, if you frequently drive short distances, make sure to drive on highways or country roads for 20
minutes at least every 310 miles (500km).

Braking Important safety notes G WARNING If you shift down on a slippery road surface in an attempt to increase the engine's braking

effect, the drive wheels could lose their grip. There is an increased danger of skidding and accidents. Do not shift down for additional engine braking on a slippery road surface.

Downhill gradients ! On long and steep gradients, you must reduce the load on the brakes by shifting early to a lower gear. This allows you to take advantage of the engine braking effect and helps avoid overheating and excessive wear of the brakes. When you take advantage of the engine braking effect, a drive wheel may not turn for some time, e.g. on a slippery road surface. This could cause damage to the drive train. This type of damage is not covered by the Mercedes-Benz warranty. Do not depress the brake pedal continuously while the vehicle is in motion, e.g. causing the brakes to rub by constantly applying light pressure to the pedal. This results in excessive and premature wear to the brake pads.

Heavy and light loads G WARNING If you rest your foot on the brake pedal while driving, the braking system can overheat. This increases the stopping distance and can even cause the braking system to fail. There is a risk of an accident. Never use the brake pedal as a footrest. Never depress the brake pedal and the accelerator pedal at the same time.

! Depressing the brake pedal constantly

results in excessive and premature wear to the brake pads.

If the brakes have been subjected to a heavy load, do not stop the vehicle immediately. Drive on for a short while. This allows the airflow to cool the brakes more quickly.

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