2010 Mercedes-benz M Class Owners Manual

Preparing the vehicle X Vehicles with air suspension program:

Make sure the vehicle level is set to highway level (Y page 155).

X Whenever possible, park the vehicle in a

safe distance from moving traffic on a hard, flat surface.

X Turn on the hazard warning flasher. X Turn the steering wheel so that the front wheels are in a straight-ahead position.

X Engage the parking brake. X Shift the automatic transmission into park

position P.

X Turn off the engine.

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X Remove the SmartKey from the starter

switch.

or X Vehicles with KEYLESS-GO: Open the

driver’s door (this puts the starter switch in position 0, same as with the SmartKey removed from the starter switch). The driver’s door can then be closed again. Open doors only when conditions are safe to do so.

X Vehicles with KEYLESS-GO: Remove the KEYLESS-GO start/stop button from the starter switch.

X Have any passenger exit the vehicle at a

safe distance from the roadway. Open doors only when conditions are safe to do so.

i Vehicles with spare wheel with collapsible

tire or TIREFIT: Only use the power outlet in the second- row footwell for electric air pump operation. You can use the power outlet even when the ignition is switched off, e.g. in order to inflate the collapsible tire. An emergency shut-off feature is designed to prevent the vehicle’s on-board voltage from dropping below a minimum level. If the on-board voltage drops to this minimum level, the power outlets are switched off automatically to help preserve engine starting power.

Sealing tires with TIREFIT Small tire punctures, particularly those in the tread, can be sealed with TIREFIT. TIREFIT can be used in ambient temperatures down to -4‡ (-20†). G Warning! TIREFIT is a limited repair device. TIREFIT cannot be used for cuts or punctures larger than approximately 0.16 in (4 mm) and tire

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damage caused by driving with extremely low tire inflation pressure, or on a flat tire, or a damaged wheel. Do not drive the vehicle under such circumstances. Contact the nearest authorized Mercedes- Benz Center for assistance or call Roadside Assistance.

X Foreign objects (e.g. screws or nails) should not be removed from the tire.

X Take the TIREFIT kit, the sticker, and the

electric air pump out of the cargo compartment (Y page 268).

Two-part sticker X Attach upper part : of the sticker where it will be easily seen by the driver on the instrument cluster.

X Attach lower part ; of the sticker to the

damaged tire (close to the tire valve). G Warning! Take care not to allow the contents of TIREFIT to come in contact with hair, eyes or clothing. TIREFIT is harmful if inhaled, swallowed or absorbed through the skin - causes skin, eye and respiratory irritation. Any contact with eyes or skin should be flushed immediately with plenty of water. If clothing comes in contact with TIREFIT, change clothing as soon as possible. In case of allergic reaction or rash, consult a physician immediately.

Flat tire 321

G Warning! Keep TIREFIT out of reach of children. If swallowed, rinse mouth immediately with plenty of water and drink plenty of water. Do not induce vomiting! Consult a physician immediately.

i If sealant has leaked out, let it dry. You

can then peel it off. If clothing has come in contact with TIREFIT, have it dry-cleaned with perchloroethylene as soon as possible. G Warning! Observe safety instructions on air pump label. Your vehicle may be equipped with either of two versions of the electric air pump: RVersion 1: The air hose with pressure

gauge and the electrical plug are located behind a flap.

RVersion 2: The pressure gauge is located

in the pump housing. The air hose and electrical plug are located at the bottom of the pump housing.

The following description applies to both versions. Differences in usage are expressly declared.

Version 1

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Version 2
X Version 1 only: Open flap C on the

electric air pump.

X Pull plug ? and air hose A out of the pump

housing.

X Screw the air pump’s air hose A onto

flange B of TIREFIT container :.

X Stick TIREFIT container : upside down into notch ; of the electric air pump.

Version 1
X Version 1 only: Close vent screw F on

pressure gauge G.

X Screw filler hose D onto tire valve E. X Insert electrical plug ? into the power

outlet in the second-row footwell (Y page 197).

! The cigarette lighter as well as the power outlets in the passenger footwell and cargo compartment are not designed for use with the electric air pump. Use the power outlet in the second-row footwell for electric air pump operation.

X Turn the SmartKey in the starter switch to

position 1.

Example illustration X Unscrew the valve cap of the damaged tire

from tire valve E.

or X Vehicles with KEYLESS-GO: Press the

KEYLESS-GO start/stop button once. Do not depress the brake pedal.

X Press I on electric air pump switch =.

The electric air pump is switched on and inflates the tire.

i First, the sealing is pumped into the tire. The pressure may briefly rise to up to 73 psi (5 bar). This is normal and not an indication of a malfunction. Do not switch off the electric air pump.

X Let the electric air pump inflate the tire for

approximately 5 minutes. The pressure gauge must display at least 26 psi (1.8 bar).

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G Warning! The air hose can become hot during inflation. Please exercise appropriate caution.

! Do not operate the electric air pump

longer than 8 minutes without interruption. Otherwise it may overheat. You may operate the air pump again after it has cooled off.

If the tire inflation pressure of at least 26 psi (1.8 bar) is not attained: X Turn off the electric air pump by pressing

0 on electric air pump switch =.

X Detach filler hose D from tire valve E. X Drive vehicle back or forth very slowly

approximately 30 ft (10 m). This serves to better distribute the TIREFIT sealant material inside the tire.

X Inflate the tire again. G Warning! If a tire inflation pressure of 26 psi (1.8 bar) is not attained, the tire is too severely damaged for TIREFIT to provide a reliable tire repair. In this case, TIREFIT cannot properly seal the tire. Do not drive the vehicle. Contact the nearest Mercedes-Benz Center or call Roadside Assistance.

After attaining a tire inflation pressure of at least 26 psi (1.8 bar): X Press 0 on electric air pump switch =.

The electric air pump is switched off.

X Detach the TIREFIT kit from the tire valve. G Warning! The air hose may still be hot. Exercise proper caution to avoid burning yourself when detaching the electric air pump.

! Remaining TIREFIT sealant could escape

from the filler hose after it has been

Flat tire 323

detached from the tire valve. TIREFIT sealant may cause stains. Therefore, cover the filler hose, e.g. by inserting it into the plastic bag the TIREFIT kit was packed in.

X Drive off immediately. G Warning! Do not exceed a vehicle speed of 50 mph (80 km/h). A TIREFIT repair is not designed to operate at higher speeds. The sticker must be attached on the instrument cluster where it will be easily seen by the driver. Vehicle handling characteristics of a TIREFIT repaired tire may change. Adapt your driving accordingly.

Version 2
X After driving the vehicle for an initial 10 minutes, check the tire inflation pressure using pressure gauge G on the air pump. G Warning! If tire inflation pressure has fallen below 20 psi (1.3 bar) do not continue to drive the vehicle. Park your vehicle safely away from the roadway and contact the nearest authorized Mercedes-Benz Center or Roadside Assistance. Have the damaged tire replaced.

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324 Flat tire

If the tire inflation pressure is at least 20 psi (1.3 bar), inflate or deflate the tire to the correct tire inflation pressure (see Tire and Loading Information placard on the driver’s door B-pillar): X To increase tire inflation pressure:

Switch on the electric air pump.

X To decrease tire inflation pressure:

Version 1: Open vent screw F on pressure gauge G (Y page 322). Version 2: Press deflate button F located at the end of the filler hose.

X Drive to the nearest qualified workshop,

e.g. an authorized Mercedes-Benz Center, to have the damaged tire replaced. X Recommended duration of use: A

maximum of 300 miles (500 km) at 50 mph (80 km/h) or below with the recommended tire inflation pressure.

X Contact an authorized Mercedes-Benz

Center as soon as possible to obtain a new TIREFIT kit.

X Bring used TIREFIT materials to an

authorized Mercedes-Benz Center for proper disposal.

X Replace your TIREFIT container every 4 years. Replacement containers are available at any authorized Mercedes-Benz Center.

Mounting the spare wheel Introduction X Prepare the vehicle as described

(Y page 320).

X Take the following out of the vehicle:

Rspare wheel Rjack Rwheel wrench Rcollapsible wheel chock

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Ralignment bolt Relectric air pump (required for vehicles

with spare wheel with collapsible tire only)

For information on where to find the respective items, see “Where will I find ...?” (Y page 268) and (Y page 271). i Vehicles without spare wheel are not

factory-equipped with the tools required for a wheel change such as a jack or a wheel wrench. Some tools required for a wheel change are specific to your vehicle. Contact an authorized Mercedes-Benz Center to obtain the tools approved for your vehicle. This section describes the wheel change using the tools approved and recommended for your vehicle.

Lifting the vehicle G Warning! When jacking up the vehicle, only use the jack which has been specifically approved by Mercedes-Benz for your vehicle. The jack is designed exclusively for jacking up the vehicle at the jack take-up brackets built into both sides of the vehicle. Make sure the jack arm is fully seated in the jack take-up bracket. The jack must always be vertical when in use, especially on inclines or declines. The jack is intended only for lifting the vehicle briefly for wheel changes. It is not suited for performing maintenance work under the vehicle. To help avoid personal injury, use the jack only to lift the vehicle during a wheel change. Never get beneath the vehicle while it is supported by the jack. Keep hands and feet away from the area under the lifted vehicle. Always lower the vehicle onto sufficient capacity jackstands before working under the vehicle. Always engage the parking brake firmly and block the wheels with wheel chocks or other

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sizeable objects before raising the vehicle with the jack. Do not disengage the parking brake while the vehicle is raised. Make sure that the ground on which the vehicle is standing and where you place the jack is solid, level and not slippery. If necessary, use a large underlay. On slippery surfaces, such as tiled floors, you should use a non-slip underlay, for example a rubber mat. Do not use wooden blocks or similar objects to support the jack. Otherwise the jack may not be able to achieve its load-bearing capacity if it is not at its full height. Never start the engine when the vehicle is raised. Also observe the notes on the jack.

X Prevent the vehicle from rolling away by

blocking wheels with wheel chocks or other sizeable objects. When your vehicle is equipped with a wheel chock, it is included with the vehicle tool kit (Y page 268). For information on setting up the collapsible wheel chock, see (Y page 270). G Warning! Only jack up the vehicle on level ground or on slight inclines/declines. Otherwise, the vehicle could fall off the jack and injure you or others. Changing a wheel on a level surface

Flat tire 325

X Place a wheel chock or other sizeable

object in front of and another wheel chock or other sizeable object behind the wheel that is diagonally opposite to the wheel being changed.

Changing a wheel on a slight decline Always try lifting the vehicle using the jack on a level surface. However, should circumstances require you to do so on a slight decline:

Changing wheel on passenger side (example illustration) X Place wheel chocks or other sizeable

objects on the downhill side in front of both wheels on the side opposite to the side on which the wheel is to be changed.

Changing a wheel on a slight incline Always try lifting the vehicle using the jack on a level surface. However, should circumstances require you to do so on a slight incline:

Changing rear wheel on passenger side (example illustration)

Changing wheel on passenger side (example illustration)

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X Place wheel chocks or other sizeable

objects on the downhill side in front of both wheels on the side opposite to the side on which the wheel is to be changed.

! Do not position the jack on the body of the vehicle, as this may cause damage to the vehicle.

X On the wheel to be changed, loosen but do

not yet remove the wheel bolts (approximately one full turn with wheel wrench :).

X Assemble the jack (Y page 270).

X Attach reversible ratchet ? to jack = in such a way that the word UP can be seen.

X Place jack = on firm ground. X Position jack = under take-up

bracket ; so that it is always vertical as seen from the side, even if the vehicle is parked on an incline.

The jack take-up brackets are located directly behind the front wheel housings and in front of the rear wheel housings. G Warning! The jack is designed exclusively for jacking up the vehicle at the jack take-up brackets. Make sure the jack arm is fully seated in the jack take-up bracket. If you do not position the jack correctly in the jack take-up bracket, the vehicle can fall off the jack and seriously or fatally injure you or others.

X Turn ratchet ? up and down until jack = is fully seated in take-up bracket ; and the jack base evenly meets the ground.

X Jack up the vehicle until the wheel is a

maximum of 1.2 in (3 cm) from the ground.

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Removing the wheel

X Unscrew the uppermost wheel bolt and

remove it.

X Replace this wheel bolt with alignment

bolt :.

X Remove the remaining bolts. ! Do not place wheel bolts in sand or dirt. This could result in damage to the wheel bolts and wheel hub threads.

X Remove the wheel.

Attaching the spare wheel G Warning! Vehicles with spare wheel with collapsible tire only: Inflate collapsible tire only after the wheel is properly attached. Inflate the collapsible tire using the electric air pump before lowering the vehicle. G Warning! Always replace wheel bolts that are damaged or rusted. Never apply oil or grease to wheel bolts. Damaged wheel hub threads should be repaired immediately. Do not continue to drive under these circumstances! Contact an authorized Mercedes-Benz Center or call Roadside Assistance. Incorrect wheel bolts or improperly tightened wheel bolts can cause the wheel to come off.

Flat tire 327

This could cause an accident. Make sure to use the correct wheel bolts. G Warning! Only use genuine Mercedes-Benz wheel bolts. Other wheel bolts may come loose. Do not tighten the wheel bolts when the vehicle is raised. Otherwise the vehicle could fall off the jack.

Wheel bolt : must be used for 18", 19", 20" and 21" light alloy wheels as well as the spare wheel with collapsible tire. Wheel bolt ; must be used for the Minispare wheel. The wheel bolts for the Minispare wheel are located in vehicle tool kit. ! Wheel bolts ; must be used when

mounting the Minispare wheel. The use of any wheel bolts other than wheel bolts ; for the Minispare wheel will damage the vehicle’s brakes. G Warning! Make sure to use the original length wheel bolts when remounting the original wheel after it has been repaired.

X Clean contact surfaces of wheel and wheel

hub.

! To avoid paint damage, place wheel flat

against hub and hold it there while installing first wheel bolt.

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X Guide the spare wheel onto the alignment

bolt and push it on.

X Insert the wheel bolts and tighten them

slightly.

X Unscrew the alignment bolt. X Install the last wheel bolt and tighten it

slightly.

X Vehicles with spare wheel with

collapsible tire: Continue the procedure by following the instructions under “Inflating the collapsible tire” (Y page 328) and then “Lowering the vehicle” (Y page 329).

or X Vehicles with Minispare wheel: Continue the procedure by following the instructions under “Lowering the vehicle” (Y page 329).

Inflating the collapsible tire G Warning! Inflate collapsible tire only after the wheel is properly attached. Inflate the collapsible tire using the electric air pump before lowering the vehicle. G Warning! Observe safety instructions on air pump label.

! Do not lower the vehicle before inflating the collapsible tire. Otherwise the rim may be damaged.

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Your vehicle may be equipped with either of two versions of the electric air pump: RVersion 1: The air hose with pressure

gauge and the electrical plug are located behind a flap.

RVersion 2: The pressure gauge is located

in the pump housing. The air hose and electrical plug are located at the bottom of the pump housing.

The following description applies to both versions. Differences in usage are expressly declared.

Version 1

Version 2
X Version 1 only: Open flap : on electric

air pump.

X Version 1 only: Pull out electrical plug

= and air hose with pressure gauge and vent screw ?.

X Version 2 only: Pull electrical plug = and

the air hose out of the pump housing bottom.

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X Version 1 only: Close vent screw on air

hose ?.

X Remove the valve cap from the collapsible

tire valve.

X Screw union nut A onto the collapsible tire

valve.

X Make sure air pump switch ; is set to 0. X Insert electrical plug = into the power

outlet in the second-row footwell (Y page 197).

! The cigarette lighter as well as the power outlets in the passenger footwell and cargo compartment are not designed for use with the electric air pump. Use the power outlet in the second-row footwell for electric air pump operation.

X Turn the SmartKey in the starter switch to

position 1.

or X Vehicles with KEYLESS-GO: Press the

KEYLESS-GO start/stop button once. Do not depress the brake pedal.

X Press I on electric air pump switch ;. The electric air pump switches on and inflates the collapsible tire.

X Inflate the collapsible tire to the

recommended tire inflation pressure as specified for your vehicle (Y page 356). This should take approximately 5 minutes. G Warning! The air hose and the union nut can become hot during inflation. Exercise proper caution to avoid burning yourself when using the equipment.

! Do not operate the electric air pump

longer than 8 minutes without interruption. Otherwise it may overheat. You may operate the air pump again after it has cooled off.

! Compare the recommended tire inflation

pressure for your vehicle with the tire

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inflation pressure on the yellow label located on the spare wheel rim. If the tire inflation pressure on the yellow label on the spare wheel rim differs from the values given in this Operator’s Manual, inflate the tire to the recommended tire inflation pressure given on the yellow label on the spare wheel rim.

X Press 0 on electric air pump switch ;. X Turn the SmartKey in the starter switch to

position 0.

or X Vehicles with KEYLESS-GO: Press the

KEYLESS-GO start/stop button twice. Do not depress the brake pedal.

X Version 1 only: If the tire inflation pressure

is above the recommended tire inflation pressure as specified for your vehicle (Y page 356), decrease tire pressure using the vent screw on air hose ?.

X Version 2 only: If the tire inflation pressure

is above the recommended tire inflation pressure as specified for your vehicle (Y page 356), decrease tire pressure using deflate button B. G Observe Safety notes, see page 221. X Detach the electric air pump. X Reinstall collapsible tire valve cap. X Version 1 only: Store electrical plug =

and air hose ? behind flap :.

X Version 2 only: Store electrical plug =

and the air hose back into the pump housing bottom.

X Place the electric air pump back in its

designated storage space.

X Lower the vehicle.

Lowering the vehicle G Warning! Vehicles with spare wheel with collapsible tire only: Inflate collapsible tire only after the wheel is properly attached.

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Inflate the collapsible tire using the electric air pump before lowering the vehicle.

X Attach ratchet to vehicle jack so that the

word DOWN can be seen.

Lower the vehicle until the vehicle is resting fully on its own weight: X Turn ratchet in direction DOWN. X Remove the jack.

X Tighten the five wheel bolts evenly,

following the diagonal sequence illustrated (: to A), until all bolts are tight. Observe a tightening torque of 110 lb-ft (150 Nm). G Warning! Have the tightening torque checked after changing a wheel. The wheels could come loose if they are not tightened to a torque of 110 lb-ft (150 Nm).

X Fully collapse the jack to storage position,

see (Y page 270).

X Store the jack and the other vehicle tools

in the designated storage space.

For information on storing the spare wheel after it has been replaced by a regular road wheel, see (Y page 271). i The damaged road wheel cannot be

stored in the spare wheel well under the cargo compartment floor. It should be transported in the cargo compartment wrapped in a protective wrap.

i USA only:

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Do not restart the tire inflation pressure monitor until a full size wheel/tire with functioning sensor has been placed back into service on the vehicle.

MOExtended system The MOExtended system allows you to continue driving your vehicle even if there is a total loss of pressure in one or more tires. You may only use the MOExtended system in conjunction with the tire pressure loss warning system (Y page 222) or the Advanced TPMS (Y page 223). The maximum distance in emergency mode depends on the vehicle’s load. It is 50 miles (80 km) if the vehicle is partially loaded and 18 miles (30 km) if the vehicle is fully loaded. The point at which the maximum driving distance in emergency mode begins is when the warning message appears in the multifunction display indicating that there is a loss of tire inflation pressure. X Do not exceed the maximum speed of

50 mph (80 km/h). G Warning! In emergency mode, your vehicle’s driving characteristics are diminished in such situations as: Rdriving around curves Rwhile braking Rwhile accelerating rapidly Therefore, your driving style must be adapted accordingly. Avoid abrupt steering and driving maneuvers, as well as driving over obstacles (road curbs, potholes, or off-road areas). This is especially important if the vehicle is heavily loaded. The emergency driving distance that can be achieved greatly depends on the demands placed on the vehicle. Depending on speed, load, driving maneuvers, road conditions, outside temperature, etc., the distance can be

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significantly shorter or, if the vehicle is driven cautiously, somewhat longer. Do not continue driving in emergency mode if Ryou notice knocking sounds Rthe vehicle starts to shake Rsmoke develops and you smell rubber RESP® is intervening continuously Ryou notice tears on the tire sidewalls After driving in emergency mode, you must have the rims inspected by an authorized Mercedes-Benz Center to check if they are suitable for further use. The failed tire must be replaced in any case. When replacing individual or all tires on the vehicle, make sure only tires marked with “MOExtended” are mounted in the size specified for your vehicle (Y page 352).

Bleeding the fuel system (diesel engine only)

Driving the vehicle until the fuel tank is empty is not recommended. Otherwise, air may be sucked into the fuel system. If this happens, the malfunction indicator lamp = (USA only) or ; (Canada only) comes on and the engine may not start immediately after refueling the vehicle. After refueling: X Make sure the automatic transmission is in

park position P. The transmission position indicator in the multifunction display should be on P. X Do not depress the accelerator. X If necessary, remove the KEYLESS-GO

start/stop button from the starter switch. X Turn the SmartKey in the starter switch to

position 2 for at least 10 seconds.

X Return the SmartKey in the starter switch

to position 0.

X Turn the SmartKey in the starter switch to position 3 and hold it there for a maximum

AdBlue® (diesel engine only)

331

of 10 seconds or until the engine runs surge-free.

If the engine does not start: X Turn the SmartKey in the starter switch

once more to position 2 for at least 10 seconds.

X Return the SmartKey in the starter switch

to position 0.

X Turn the SmartKey in the starter switch once more to position 3 and hold it there for a maximum of 10 seconds or until the engine runs surge-free.

X If necessary, repeat the above steps. If the engine still does not start after 3 attempts: Do not make any further attempts to start the engine. Contact an authorized Mercedes- Benz Center or call Roadside Assistance (Y page 201). i When the malfunction indicator lamp

= (USA only) or ; (Canada only) in the instrument cluster has been illuminated for the above condition, it will remain illuminated until the engine was cycled on and off four times in a row.

AdBlue® (diesel engine only)

The BlueTEC exhaust gas aftertreatment system requires a reducing agent (AdBlue®) in order to function properly. Refilling with AdBlue® is part of the regular maintenance service work. A tankful of AdBlue® should suffice until the next maintenance service under normal driving conditions. When the AdBlue® tank is low, the message Check Additive See Operator’s Manual appears in the multifunction display. When the AdBlue® level drops to the minimum level, the message Remaining Starts: 20 appears in the multifunction display.

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332 AdBlue® (diesel engine only)

i When the message Remaining Starts: 20 appears in the multifunction display, you can start the engine 20 more times. If you do not add AdBlue®, the engine cannot be started beyond that point. Fill the AdBlue® tank with approximately 1 gal (3.79 l) AdBlue® (corresponds to approximately 2 AdBlue® refill containers) or have the AdBlue® tank filled by an authorized Mercedes-Benz Center.

i For refilling outside the maintenance service intervals, refill the AdBlue® tank with approximately 1 gal (3.79 l) AdBlue® (corresponds to approximately 2 AdBlue® refill containers).

Always use the particular AdBlue® refill containers for refilling outside the maintenance service interval. Contact an authorized Mercedes-Benz Center or call Roadside Assistance if necessary (Y page 201). Additional information on BlueTEC exhaust gas aftertreatment and AdBlue® is available at any authorized Mercedes-Benz Center.

Refilling with AdBlue® G Warning! Make sure RAdBlue® does not come into contact with

skin, eyes, or clothing

Rto keep AdBlue® out of the reach of children

If you and/or others have come into contact with AdBlue®: RIf AdBlue® has gotten into contact with

eyes, flush with plenty of water immediately and seek medical help.

RClean affected skin immediately with plenty

of water.

RIf AdBlue® was swallowed, rinse mouth

immediately with plenty of water and drink plenty of water. Consult a physician. G Warning! When opening the filler cap of the AdBlue® tank ammonia gas vapors may escape. Refill AdBlue® in a well ventilated area only. Ammonia gas vapors have a pungent odor and are particularly irritating for your skin, mucous membranes, and eyes. Inhaling ammonia gas vapors will cause burning eyes, nose, and throat, as well as coughing and watering eyes.

! Only use AdBlue® complying with ISO 22241. Do not add additives to AdBlue® and do not dilute AdBlue® with water. Otherwise, the BlueTEC exhaust gas aftertreatment system could be damaged. Damage caused by using additives or diluting with water are not covered by the Mercedes-Benz Limited Warranty.

! Rinse surfaces that have come into

contact with AdBlue®, or remove AdBlue® with a moist cloth and cold water immediately. If AdBlue® has crystallized already, use cold water and a sponge. AdBlue® residues will crystallize and soil the affected surfaces.

! AdBlue® is not a fuel additive and must

not be added to the diesel fuel tank. If AdBlue® reaches the diesel fuel tank, the engine could be damaged which is not covered by the Mercedes-Benz Limited Warranty.

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AdBlue® (diesel engine only)

333

For more information on AdBlue®, see (Y page 361). The AdBlue® filler neck is located under the cargo compartment floor. X Switch off the ignition. X Open the tailgate (Y page 75). X Lift the cargo compartment floor

(Y page 268).

X Turn AdBlue® filler cap cover : counterclockwise and remove it.

X Turn AdBlue® filler cap ;

counterclockwise and open it. Filler cap ; is tethered with a plastic strap.

X Pull dust cap off of AdBlue® refill container

=.

X Place AdBlue® refill container = on the

filler neck as illustrated and tighten it moderately (hand-tight) by turning it clockwise.

! Make sure to tighten the AdBlue® refill container only moderately, i.e. hand-tight, as you could otherwise damage it.

X Push AdBlue® refill container = down.

The AdBlue® tank is filled. This may take up to 1 minute.

i When you stop pushing the AdBlue® refill

container down, the filling process is stopped and you can remove the refill container.

X Release AdBlue® refill container =. X Turn AdBlue® refill container = counterclockwise and remove it.

X Place AdBlue® filler cap ; (Y page 332) on

filler neck and turn it clockwise.

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334 Battery

X Place AdBlue® filler cap cover : as

illustrated and turn it clockwise to its stop.

X Lower cargo compartment floor. X Close the tailgate. X Drive the vehicle at a speed of at least 10 mph (16 km/h). The message Check Additive See Operator’s Manual disappears after approximately 1 minute. i If the message Check Additive See Operator’s Manual still appears in the multifunction display, refill with one more container of AdBlue®.

i Have the AdBlue® level checked and, if necessary, filled completely afterward at an authorized Mercedes-Benz Center.

Battery Safety notes A battery should always be sufficiently charged in order to achieve its rated service life. Refer to Maintenance Booklet for battery maintenance intervals. If you use your vehicle mostly for short- distance trips, you will need to have the battery charge checked more frequently. When replacing a battery, always use a battery approved by Mercedes-Benz. If you do not intend to operate your vehicle for an extended period of time, contact an authorized Mercedes-Benz Center about steps you need to observe. G Warning! HYBRID vehicles: It is imperative that you read the HYBRID Supplemental Operating Instructions included in your vehicle literature portfolio. You may otherwise not recognize potential danger.

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G Warning! Observe all safety instructions and precautions when handling automotive batteries.

Risk of explosion.

Fire, open flames and smoking are prohibited when handling batteries. Avoid creating sparks. Battery acid is caustic. Do not allow it to come into contact with skin, eyes or clothing. Wear suitable protective clothing, especially gloves, apron and faceguard. Wear eye protection. Rinse any acid spills immediately with clear water. Contact a physician if necessary. Keep children away.

Follow the instructions in this Operator’s Manual.

A battery contains materials that can harm the environment if disposed of improperly. A large 12 V storage battery contains lead. Recycling of the battery is the preferred method of disposal. Many states (USA only) or provinces (Canada only) require sellers of batteries to accept the old battery for recycling. G Warning! Failure to follow these instructions can result in severe injury or death. Never lean over batteries while connecting. You might get injured.

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Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or clothing. In case it does, immediately flush affected area with water and seek medical help if necessary. A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or sparks away from battery, avoid improper connection of jumper cables, smoking etc. G Warning! Do not place metal objects on the battery as this could result in a short circuit. Use leak-proof batteries only to avoid the risk of acid burns in the event of an accident. Take care that you do not become statically charged, e.g. by wearing synthetic clothing or rubbing against textiles. For this reason, you also should not pull or push the battery over carpets or other synthetic materials. Never touch the battery first. First touch the outside body of the vehicle in order to release any possible electrostatic charges. Do not rub the battery with rags or cloths. The battery could explode if touched due to electrostatic charge or due to spark formation.

! The battery is a Valve-Regulated Lead Acid (VRLA) battery, also referred to as “fleece” battery. Such batteries do not require topping-up of the electrolyte level. VRLA batteries therefore do not have cell caps and the battery cover is non-removable. Do not attempt to open the battery as otherwise the battery will be damaged. VRLA batteries do not require topping-up of the electrolyte level. They cannot be opened to check the electrolyte level. However, the battery condition must be checked periodically by performing a battery conductance test. Refer to Maintenance Booklet for battery condition testing intervals.

Battery

335

The factory-equipped battery may only be replaced with a battery that Rhas the same security features Ris of identical size Ris of identical voltage Ris of identical capacity

! As any other battery, the battery may

discharge if you do not operate the vehicle for an extended period of time. Have the battery disconnected at a qualified workshop or an authorized Mercedes-Benz Center in such a case. You may also connect an accessory battery charge unit expressly approved by Mercedes-Benz for your vehicle model to maintain the battery charge. Contact an authorized Mercedes- Benz Center for further information. The battery, the battery ventilation hose and the lateral plug must always be securely installed when the vehicle is in operation.

! Never loosen or detach battery terminal clamps while the engine is running or the SmartKey is in the starter switch or KEYLESS-GO button is in position 1. Otherwise the alternator and other electronic components could be severely damaged. Have the battery checked regularly at an authorized Mercedes-Benz Center. Refer to Maintenance Booklet for maintenance intervals or contact an authorized Mercedes-Benz Center for further information.

i After battery power was interrupted, do

the following: RSet the clock (Y page 132).

Vehicles with COMAND system with navigation module: Time and date are set automatically.

RSynchronize the door windows

(Y page 102).

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Jump starting

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RSynchronize the power tilt/sliding

sunroof (Y page 186).

RSynchronize the exterior rear view

mirrors (Y page 91).

Charging the battery G Warning! Never charge a battery while still installed in the vehicle unless the accessory battery charge unit approved by Mercedes-Benz is being used. Gases may escape during charging and could cause an explosion that may result in personal injury, paint damage or corrosion. An accessory battery charge unit specially adapted for Mercedes-Benz vehicles and tested and approved by Mercedes-Benz is available. It permits the charging of the battery in its installed position. Contact an authorized Mercedes-Benz Center for information and availability. Charge battery in accordance with the separate instructions for the accessory battery charger. Have the battery charged at an authorized Mercedes-Benz Center. If you charge the battery yourself, follow the operating instructions for your charging device. Only use a battery charge unit with a maximum charging voltage of 14.8 V. X Charge battery in accordance with the

instructions of the battery charger manufacturer.

Jump starting

G Warning! Failure to follow these directions will cause damage to the electronic components, and

can lead to a battery explosion and severe injury or death. Never lean over batteries while connecting or jump starting. You might get injured. Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or clothing. In case it does, immediately flush affected area with water, and seek medical help if necessary. A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or sparks away from battery, avoid improper connection of jumper cables, smoking, etc. Attempting to jump start a frozen battery can result in it exploding, causing personal injury. Read all instructions before proceeding. G Warning! HYBRID vehicles: It is imperative that you read the HYBRID Supplemental Operating Instructions included in your vehicle literature portfolio. You may otherwise not recognize potential danger.

! Do not tow-start the vehicle. You could

otherwise seriously damage the automatic transmission which is not covered by the Mercedes-Benz Limited Warranty.

! Jump starting should only be performed using the jump-start terminals located in the engine compartment. Avoid repeated and lengthy starting attempts. Do not attempt to start the engine using a battery quick-charge unit. If the engine does not run after several unsuccessful starting attempts, have it checked at the nearest authorized Mercedes-Benz Center. Excessive unburned fuel generated by repeated failed starting attempts may

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damage the catalytic converter31 and may present a fire risk. Make sure the jumper cables do not have loose or missing insulation. Make sure the cable clamps do not touch any other metal part while the other end is still attached to a battery.

If the battery is discharged, the engine can be started with jumper cables and the fully charged battery of another vehicle or an equivalent starter pack. Observe the following: RAccess to the battery is not possible on all vehicles. If you cannot access the battery of the other vehicle, provide jump start power by an external battery or starter pack.

RJump starting should only be performed

when the engine and catalytic converter32
are cold.

RDo not start the engine if the battery is

frozen. Let the battery thaw out first.

ROnly jump start from batteries with the

same voltage rating (12 V). Jump starting

with a more powerful battery could damage the vehicle’s electrical system. Such damage will not be covered by the Mercedes-Benz Limited Warranty.

ROnly use jumper cables with sufficient

cross-section and insulated terminal clamps.

RAlways make sure the jumper cables are not on or near pulleys, fans or other parts that move when an engine is started or running.

RShould the battery be drained completely, let the donating power source charge the vehicle for several minutes before reattempting the starting process.

The jump-start contacts are located in the engine compartment on the passenger side. X Make sure the two vehicles do not touch. X Switch off all electrical consumers. X Engage the parking brake. X Make sure the automatic transmission is in

park position P.

X Open the hood (Y page 213).

31 Vehicles with gasoline engine only. 32 Vehicles with gasoline engine only.

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338 Towing the vehicle

Position C represents the charged battery of another vehicle or an equivalent starter pack. X Flip up cover : of positive terminal = in

direction of arrow.

! Never invert the terminal connections! X Connect positive terminal ; of charged

battery C with positive terminal = with a jumper cable. Clamp the cable to positive terminal ; of charged battery C first. X Start engine of the vehicle with charged

battery C and run at idle speed.

X Slide cover A from negative terminal B in

direction of arrow.

X Connect negative terminal ? of charged battery C with negative terminal B with a jumper cable. Clamp the cable to negative terminal ? of charged battery C first.

X Start engine of the vehicle with the

discharged battery and run at idle speed. You can now turn on the electrical consumers. Do not switch on the headlamps under any circumstances.

X Remove the jumper cables from negative

terminals ? and B first.

X Remove the jumper cables from positive

terminals ; and =. You can now switch on the headlamps. X Close cover : of positive terminal =. X Slide cover A back onto negative terminal

B.

X Have the battery checked at the nearest

authorized Mercedes-Benz Center.

Towing the vehicle Safety notes Mercedes-Benz recommends that the vehicle be transported with all wheels off the ground using flatbed or appropriate wheel lift/dolly equipment. This method is preferable to other types of towing. G Warning! HYBRID vehicles: It is imperative that you read the HYBRID Supplemental Operating Instructions included in your vehicle literature

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portfolio. You may otherwise not recognize potential danger.

! To prevent damage during transport, do

not tie down vehicle by its chassis or suspension parts.

If circumstances do not permit the recommended towing methods, the vehicle may be towed with all wheels on the ground only so far as necessary to have the vehicle moved to a safe location where the recommended towing methods can be employed. ! Before towing the vehicle observe the

following instructions: RDo not tow-start the vehicle. You could

otherwise seriously damage the automatic transmission which is not covered by the Mercedes-Benz Limited Warranty.

RDo not tow with sling-type equipment. Towing with sling-type equipment over bumpy roads will damage radiator and supports.

RTowing of the vehicle should only be

done using the properly installed towing eye bolt. Never attach a tow cable, tow rope or tow rod to the vehicle chassis, frame or suspension parts.

G Warning! With the engine not running, there is no power assistance for the brake and steering systems. In this case, it is important to keep in mind that a considerably higher degree of effort is necessary to brake and steer the vehicle. Adapt your driving accordingly.

! Avoid pulling the vehicle abruptly or

diagonally, since it could result in damage to the chassis alignment.

! Do not use the towing eye bolt for

recovery, as this could damage the vehicle. If in doubt, recover the vehicle with a crane.

i If the battery is disconnected or

discharged Rthe SmartKey will not turn in the starter

switch

Rthe automatic transmission will remain in

park position P

For more information see “Battery” (Y page 334) or “Jump starting” (Y page 336).

Installing towing eye bolt Depending on whether you are towing a vehicle or you are being towed, the towing eye bolt can be screwed into threaded holes which are located behind covers on each bumper. The towing eye bolt is supplied with the vehicle tool kit, located in the cargo compartment underneath the cargo compartment floor (Y page 268). X Take the towing eye bolt out of the space underneath the cargo compartment floor.

Removing cover in front bumper

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340 Towing the vehicle

Vehicles with AMG Sport Package X Press mark on cover : as indicated by the

arrow.

X Lift cover : off to reveal the threaded hole

for the towing eye bolt.

Removing cover in rear bumper G Warning! In order to avoid possible serious burns or injury, use extreme caution when removing the rear cover, because the rear exhaust pipe is extremely hot.

Vehicles with Sport Package

Vehicles with AMG Sport Package X Press mark on cover : as indicated by the

arrow.

X Vehicles with Sport Package: Pry

cover : with a flat, blunt object as a lever. X Vehicles with AMG Sport Package: Press mark on cover : as indicated by the arrow. X Lift cover : off to reveal the threaded hole

for the towing eye bolt.

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Fixing towing eye bolt

Example illustration front bumper X Take the towing eye bolt and, if so

equipped, the wheel wrench from the vehicle tool kit.

X Screw towing eye bolt ; clockwise into

threaded hole to its stop.

X Insert wheel wrench into towing eye and tighten towing eye bolt ; by turning it clockwise.

or X If your vehicle is not equipped with a wheel

wrench, use a suitable object to turn the towing eye bolt.

Removing towing eye bolt X Loosen towing eye bolt ; by turning it

counterclockwise.

X Unscrew towing eye bolt ;. X Reinstalling cover: Engage cover :

(Y page 339) at top and press at bottom. X Store the towing eye bolt ; and wheel

wrench back into the vehicle tool kit.

Towing with one axle raised ! The vehicle may be towed only for

distances up to 30 miles (50 km) and at a speed not to exceed 30 mph (50 km/h).

! Vehicles with 4MATIC: Do not tow with

one axle raised. Doing so could damage the

Towing the vehicle 341

transfer case, which is not covered by the Mercedes-Benz Limited Warranty. All wheels must be on or off the ground. Observe instructions for towing the vehicle with all wheels on the ground.

When towing the vehicle with one axle raised, the wheels on the ground have to move freely. Therefore follow the respective steps below, after the front or the rear axle being raised:

Towing with the front axle raised X Switch off the automatic central locking

X Switch on the hazard warning flasher

(Y page 135).

(Y page 96).

X Make sure the automatic transmission remains in neutral position N. Observe instructions, see “Remaining in neutral position N” (Y page 111).

! Because the ESP® operates

automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1 or KEYLESS-GO start/stop button in position 0 or 1) when the vehicle is being towed with one axle raised. Active braking action through the ESP® may otherwise seriously damage the brake system which is not covered by the Mercedes-Benz Limited Warranty.

! Keep in mind that it is important for the SmartKey to be left in starter switch with the ignition switched off. As soon as the SmartKey is removed from the starter switch the automatic transmission will shift to park position P.

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342 Fuses

Towing with the rear axle raised X Switch off the ignition and remove the

SmartKey from the starter switch.

X Switch on the hazard warning flasher

(Y page 96).

X Take the SmartKey or SmartKey with

KEYLESS-GO with you when leaving the vehicle.

Towing with all wheels on the ground G Warning! If circumstances require towing the vehicle with all wheels on the ground, always tow with a tow bar if: Rthe engine will not run Rthere is a malfunction in the brake system Rthere is a malfunction in the power supply

or in the vehicle’s electrical system

This is necessary to adequately control the towed vehicle. Prior to towing the vehicle with all wheels on the ground, make sure the SmartKey is in starter switch position 2. G Warning! With the engine not running, there is no power assistance for the brake and steering systems. In this case, it is important to keep in mind that a considerably higher degree of effort is necessary to brake and steer the vehicle. Adapt your driving accordingly.

X Make sure the ignition is switched on. X With the vehicle at a standstill, depress the

brake pedal and keep it pressed.

X Shift the automatic transmission into

neutral position N.

X Release the brake pedal. X If engaged, release the parking brake. X Switch on the hazard warning flasher

(Y page 96).

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! Keep in mind that it is important to have

the ignition switched on. Removing the SmartKey from the starter switch or opening a front door with the ignition switched off will automatically shift the automatic transmission into park position P.

! The vehicle may be towed only for

distances up to 30 miles (50 km) and at a speed not to exceed 30 mph (50 km/h).

i While being towed with the hazard

warning flasher in use, use the combination switch in the usual manner to signal turns. Only the selected turn signal will operate. Upon canceling the turn signal, the hazard warning flasher will operate again.

Stranded vehicle Freeing a stranded vehicle, on which the wheels are dug into sand or mud, should be done with the greatest of care, especially if the vehicle is heavily loaded. Note the following when freeing a stranded vehicle: RAvoid pulling the vehicle abruptly or

diagonally, since it could result in damage to the chassis alignment.

RNever try to free a vehicle that is still

coupled to a trailer.

RIf possible, a vehicle equipped with a trailer hitch receiver should be pulled backward in its own previously made tracks.

Fuses Introduction The electrical fuses in your vehicle serve to switch off malfunctioning power circuits. If a fuse is blown, the components and systems secured by that fuse will stop operating.

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G Warning! Only use fuses approved by Mercedes-Benz with the specified amperage for the system in question and do not attempt to repair or bridge a blown fuse. Using other than approved fuses or using repaired or bridged fuses may cause an overload leading to a fire, and/or cause damage to electrical components and/or systems. Have the cause determined and remedied by an authorized Mercedes-Benz Center. A blown fuse must be replaced by an appropriate spare fuse (recognizable by its color or the fuse rating given on the fuse) of the amperage recommended in the fuse chart. Any Mercedes-Benz Center will be glad to advise you on this subject. i In case of a blown fuse contact Roadside

Assistance or an authorized Mercedes- Benz Center.

If a newly inserted fuse blows again, have the cause determined and rectified by an authorized Mercedes-Benz Center. The fuse chart is located in the cargo compartment with the vehicle tool kit (Y page 268). The fuse chart explains the fuse allocation and fuse amperages.

Before replacing fuses X Engage the parking brake. X Make sure the automatic transmission is in

park position P. The transmission position indicator in the multifunction display should be on P. X Switch off all electrical consumers. X Turn off the engine. X Remove the SmartKey from the starter

switch.

X Vehicles with KEYLESS-GO: Open the

driver’s door (this puts the starter switch in position 0, same as with the SmartKey removed from the starter switch). The driver’s door then can be closed again.

Fuses

343

Fuse box in passenger compartment ! Do not use sharp objects such as a

screwdriver to open the fuse box cover in the dashboard. You could damage the fuse box cover or the dashboard.

The fuse box is located behind a cover in the dashboard on the front passenger side.