2010 Mercedes-benz M Class Owners Manual

X If the front passenger front air bag off indicator lamp remains

out, have the system checked as soon as possible at an authorized Mercedes-Benz Center. Do not transport a child on the front passenger seat until the system has been repaired. X Read and observe messages in the multifunction display and

follow corrective steps (Y page 272).

G Warning! If the 42 indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less on the front passenger seat, do not transport a child on the front passenger seat until the system has been repaired.

and

Ropen the driver’s door To cancel the alarm, insert the SmartKey into the starter switch.

Removing the mechanical key

Unlocking/locking manually Unlocking the vehicle If you cannot unlock the vehicle with the SmartKey or with KEYLESS-GO, unlock the driver’s door using the mechanical key. The anti-theft alarm system will trigger when you Runlocking the driver’s door with the

mechanical key

SmartKey

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Unlocking/locking manually

307

Locking the vehicle If you cannot lock the vehicle with the SmartKey or with KEYLESS-GO, lock it as follows: X Close the front passenger door, the right

rear door, and the tailgate.

X Open the driver’s door and the rear left

door.

SmartKey with KEYLESS-GO X Move locking tab : in the direction of

arrow.

X Slide mechanical key ; out of the housing.

Unlocking the driver’s door

X Insert mechanical key ; into the driver’s

door lock.

X Turn mechanical key ; counterclockwise

to position 1.

X Pull the door handle past the resistance point until the locking knob moves up. The driver’s door is unlocked.

X Pull the door handle once more to open the

driver’s door.

X Turn mechanical key ; back and remove

it from the driver’s door lock.

X Press the central locking switch

(Y page 75). The locking knobs of the front passenger door and the rear doors move down.

X If the vehicle battery is disconnected or drained: Press down the locking knobs on the front passenger door and the rear doors.

X Exit the vehicle. X Close the driver’s door. X Enter the vehicle through the rear left door. X Press down the locking knob of the driver’s

door.

! To prevent inadvertent lockout, make

sure to have the SmartKey with you before proceeding with the next step. The next step will lock the vehicle.

X Exit the vehicle. X Close the rear left door.

The vehicle is locked.

i This procedure does not arm the anti-

theft alarm system, nor does it lock the fuel filler flap.

Unlocking and opening the tailgate If the tailgate can no longer be unlocked and opened using button F on the SmartKey or the KEYLESS-GO function, use the emergency release lever to unlock and open the tailgate. The emergency release lever is located on the inside of the tailgate.

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308 Unlocking/locking manually

A minimum height clearance of 7.2 ft (2.20 m) is required to open the tailgate.

X Remove cover ; from the trim on the

tailgate.

X Push emergency release lever : all the

way to the left.

! The tailgate swings open upwards

automatically. Always make sure there is sufficient overhead clearance.

X Open the tailgate. i If the vehicle has previously been locked

from the outside using the SmartKey or KEYLESS-GO, opening the tailgate from the inside using the emergency release lever will trigger the anti-theft alarm system. To cancel the alarm, do one of the following: RInsert the SmartKey into the starter

switch.

Fuel filler flap 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. G Warning! Avoid contact with the vehicle walls as they may contain sharp edges. Otherwise, you could injure yourself while releasing the fuel filler flap. In case the central locking system does not release the fuel filler flap, you can open it manually. The fuel filler flap release is located on the passenger side in the cargo compartment behind the cover. X Open the tailgate (Y page 75). X Open the cover on the passenger-side trim

panel (Y page 316).

RPress button % or & on the

SmartKey.

In vehicles with KEYLESS-GO: RPull an outside door handle.

The SmartKey must be within 3 ft (1 m) of the vehicle.

RPress the KEYLESS-GO start/stop

button. The SmartKey must be inside the vehicle.

X Reinstall cover ;.

X Pull yellow fuel filler flap release : in

direction of arrow. The fuel filler flap is unlocked.

X Open the fuel filler flap (Y page 210). X Close the cover. X Close the tailgate.

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Resetting activated NECK-PRO active front head restraints

If the NECK-PRO active front head restraints have been triggered in a rear-end collision, they must be reset. You can tell that the NECK-PRO active front head restraints have been triggered when they have been moved forward and cannot be adjusted. G Warning! For safety reasons, have the NECK-PRO active front head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. G Warning! When pushing back the head restraint cushion, make sure your fingers do not become caught between the head restraint cushion and the cover. Failing to do so may lead to injury.

i Pressing the head restraint cushion back

requires high force. If you encounter difficulties when pushing the head restraint back, please have the procedure performed at an authorized Mercedes-Benz Center.

X Pull the top of the head restraint cushion in

direction of arrow : as far as it will go.

X Adjust the head restraint cushion

downward in direction of arrow ; as far as it will go.

Replacing SmartKey batteries

309

X Firmly press the top of the head restraint cushion towards the head restraint cover in direction of arrow = until it engages.

X Repeat this procedure on the NECK-PRO active front head restraint for the second front seat.

For information on NECK-PRO active front head restraints, see “NECK-PRO active front head restraints” (Y page 53).

Replacing SmartKey batteries

If the batteries in the SmartKey are discharged, the vehicle can no longer be locked or unlocked. It is recommended to have the batteries replaced at an authorized Mercedes-Benz Center. G Warning! Batteries contain poisonous and corrosive substances. Therefore, keep the batteries out of reach of children. If a battery is swallowed, seek medical help immediately. G Warning! SmartKey batteries contain perchlorate material, which may require special handling and regard for the environment. Check with your local government’s disposal guidelines. California residents, see www.dtsc.ca.gov/ HazardousWaste/Perchlorate/ index.cfm. Batteries contain materials that can harm the environment if disposed of improperly. Recycling of batteries is the preferred method of disposal. Many states (USA only) or provinces (Canada only) require sellers of batteries to accept old batteries for recycling. When inserting the batteries, make sure they are clean and free of lint. When replacing batteries, always replace both batteries.

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310 Replacing SmartKey batteries

i The required replacement batteries are

available at any authorized Mercedes-Benz Center.

Replacement batteries: Lithium, type CR 2025 or equivalent. X Remove the mechanical key from the

SmartKey (Y page 306).

X Slide mechanical key : back into the

SmartKey.

X Check the operation of the SmartKey.

SmartKey with KEYLESS-GO

SmartKey

X Press mechanical key ; into the SmartKey

opening until battery compartment cover : opens. Do not keep the cover shut.

X Insert mechanical key : into opening. X Press mechanical key : in direction of

arrow. Battery compartment ; is unlatched. X Pull battery compartment ; out of the

SmartKey housing.

X Remove the battery compartment cover. X Pat the SmartKey against the palm of your

hand until battery = falls out.

X Insert the new battery with the positive

terminal (+) facing up. Use a lint-free cloth. X Insert the tabs of the battery compartment cover into the housing and press the cover closed.

X Pull out batteries =. X Insert new batteries = under contact

springs ? with the positive terminal (+) side facing up.

X Return battery compartment ; into

SmartKey housing until it locks into place.

X Slide mechanical key : back into the

SmartKey.

X Check the operation of the SmartKey as

well as the KEYLESS-GO function.

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Replacing bulbs

311

Wear eye and hand protection. Because of high voltage in Xenon lamps, it is dangerous to replace the bulb or repair the lamp and its components. We recommend that you have such work done by a qualified technician.

i Since replacing bulbs is a technically

highly demanding process, we recommend to have them replaced at an authorized Mercedes-Benz Center.

i If the headlamps or front fog lamps are fogged up on the inside as a result of high humidity, driving the vehicle a distance with the lights on should clear up the fogging.

Replacing bulbs Safety notes Safe vehicle operation depends on proper exterior lighting and signaling to a large degree. Correct headlamp adjustment is extremely important. Have headlamps checked and readjusted at regular intervals and when a bulb has been replaced. Contact an authorized Mercedes-Benz Center for headlamp adjustment. G Warning! Bulbs and bulb sockets can be very hot. Allow the lamp to cool down before changing a bulb. Keep bulbs out of reach of children. Halogen lamps contain pressurized gas. A bulb can explode if you Rtouch or move it when hot Rdrop the bulb Rscratch the bulb

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312 Replacing bulbs

Bulbs You can replace the following bulbs yourself: Halogen headlamps

Bi-Xenon headlamps

Standard rear lamps

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Type : Low-beam lamp: H7 55 W ; High-beam lamp/High-beam flasher

lamp: H7 55 W

= Parking and standing lamp: W 5 W ? Turn signal lamp: 3457A A Side marker lamp: WY 5 W

Type : High-beam flasher lamp/High-beam

flasher spot lamp: H7 55 W

; Parking and standing lamp: W 5 W = Turn signal lamp: 3457A ? Side marker lamp: WY 5 W

Type : Brake lamp: P 21 W ; Backup lamp: P 21 W = Tail lamp, parking and standing lamp,

rear foglamp (driver’s side only): P 21 W

? Side marker lamp: P 21 W A Turn signal lamp: PY 21 W

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LED rear lamps

Replacing bulbs

313

Type : Backup lamp: W 16 W ; Rear foglamp (driver’s side only):

W 16 W

= Rear foglamp (driver’s side only):

W 16 W

License plate lamps

Type : License plate lamps: C 5 W

i Mercedes-Benz recommends using

Longlife (LL) bulbs.

Replacing bulbs for front lamps Before you start to replace a bulb for a front lamp, do the following: X Switch off the ignition. X Turn the exterior lamp switch to position

$.

X Open the hood (Y page 212).

Notes on bulb replacement ! Do not replace LEDs or bulbs not described in this section. You could otherwise damage the LEDs, the bulbs or parts of the vehicle. Only have the LEDs and bulbs replaced at an authorized Mercedes- Benz Center.

ROnly use 12-volt bulbs of the same type and

with the specified watt rating.

RSwitch the lights off before changing a bulb

to prevent short circuits.

RAlways use a clean lint-free cloth when

handling bulbs.

RYour hands should be dry and free of oil and

grease.

RIf the newly installed bulb does not come on, contact an authorized Mercedes-Benz Center.

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314 Replacing bulbs

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X Turn housing cover : counterclockwise

and remove it.

X Turn bulb socket B with the bulb counterclockwise and remove it.

Example illustration: Driver’s side headlamp : Housing cover for low-beam halogen or Bi-

Xenon headlamp

; Housing cover for high-beam halogen

bulb (high beam and high-beam flasher) = Bulb socket for parking and standing lamp

bulb

? Bulb socket for front turn signal lamp bulb A Bulb socket for side marker lamp bulb G Warning! Do not remove the cover for the Bi-Xenon headlamp. Because of high voltage in Xenon lamps, it is dangerous to replace the bulb or repair the lamp and its components. It is recommended to have such work done by a qualified technician.

Low-beam bulb (halogen headlamps only)

X Pull bulb E out of bulb socket B. i Do not remove clip D from bulb socket

B.

X Gently press the new bulb into bulb socket

B.

X Place bulb socket B back into the housing

and turn it clockwise until it engages.

X Align housing cover : and turn it

clockwise until it engages.

High-beam and high-beam flasher bulb (halogen headlamps only)/high-beam flasher bulb (Bi-Xenon headlamps only)

B Bulb socket for low-beam headlamp

C Bulb socket for high-beam headlamp

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X Turn housing cover ; counterclockwise

and remove it.

X Turn bulb socket C with the bulb counterclockwise and remove it.

X Pull the bulb out of bulb socket C. X Gently press the new bulb into bulb socket

C.

X Place bulb socket C back into the housing

and turn it clockwise until it engages.

X Align housing cover ; and turn it

clockwise until it engages.

Parking and standing lamp bulb, front turn signal lamp bulb, side marker lamp bulb X Turn respective bulb socket =, ? or A

(Y page 314) with the bulb counterclockwise and remove it.

X Pull the bulb out of the bulb socket. X Gently press the new bulb into the bulb

socket.

X Place bulb socket =, ? or A back into the housing and turn it clockwise until it engages.

Replacing bulbs for rear lamps Before you start to replace a bulb for a rear lamp, do the following: X Switch off the ignition. X Turn the exterior lamp switch to position

$.

Tail lamp unit To access the tail lamp units, you first have to remove the cover in the corresponding side trim panel of the cargo compartment. X Open the tailgate.

Replacing bulbs

315

Opening the driver’s side trim panel

X Turn lock : counterclockwise by 90°. X Remove cover ;.

Removing storage compartment

Example illustration: Storage compartment without sound system X Remove everything from storage

compartment ;.

X Insert a suitable object such as a coin into

the slot of lock :.

X Turn lock : by 90° in direction of the

arrow.

X Remove storage compartment ;.

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316 Replacing bulbs

Opening the passenger-side trim panel

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X Insert a suitable object such as a coin into

the slot of lock :.

X Turn lock : by 90° in direction of the

arrow.

X Remove cover ;.

Replacing bulbs

Example illustration: Standard rear lamp driver’s side : Brake lamp bulb socket ; Rear turn signal lamp bulb socket = Side marker lamp bulb socket ? Tail lamp, parking and standing lamp and

rear fog lamp (driver’s side only) bulb socket

A Backup lamp bulb socket

Example illustration: LED rear lamp driver’s side : Backup lamp bulb socket ; Rear fog lamp bulb sockets (driver’s side

only)

X Depending on which bulb needs to be

replaced, turn the respective bulb socket counterclockwise.

X Pull the bulb socket out of the housing. X Standard rear lamp: Gently press onto the bulb and turn it counterclockwise out of its bulb socket. LED rear lamp: Pull the bulb out of its bulb socket.

X Standard rear lamp: Gently press the new

bulb into its bulb socket and turn it clockwise until it engages. LED rear lamp: Gently press the new bulb into its bulb socket.

X Align the bulb socket and turn it clockwise. X Make sure the bulb socket is attached

properly.

X Close the respective cover in the cargo

compartment.

X Close the tailgate.

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License plate lamps

X Loosen screws : of lamp cover to be

removed.

X Remove lamp cover ;. X Replace the bulb. X Reinstall lamp cover ;. X Retighten screws :.

Adjusting headlamp aim

: V Vertical centerline ; H Horizontal mounting height, measured

from the center

Replacing bulbs

317

Correct headlamp adjustment is extremely important. High beam adjustments simultaneously aim the low beam. To check and readjust a headlamp, follow the steps described: X Park the vehicle on a level surface 25 feet (7.6 m) from a vertical test screen or wall. X Make sure the vehicle has a normal tailgate

load.

X Switch on the low beam headlamps L. If the beam does not show a beam pattern as indicated in the figure left, then follow the steps below: X Open the hood (Y page 212).

The adjustment screws are located under the cover panel. X Insert a suitable tool into the openings in the panel cover. The direction of arrows = and ? indicate the angle in which the tool has to be inserted in oder to access the adjustment screws.

X Always turn the adjustment screws equally for vertical adjustment until the headlamp is adjusted as shown in :. Turn clockwise for upward movement and counterclockwise for downward movement. Graduations: RScrew at arrow =: 0.67° pitch RScrew at arrow ?: 0.50° pitch The left and right headlamps must be adjusted individually.

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318 Replacing wiper blades

i If it is not possible to obtain a proper headlamp adjustment, have the system checked at an authorized Mercedes-Benz Center.

Replacing wiper blades Safety notes G Warning! For safety reasons, switch off the wipers and remove the SmartKey from the starter switch (vehicles with KEYLESS-GO: Make sure the vehicle’s on-board electronics have status 0) before replacing a wiper blade. Otherwise, the wiper motor could suddenly turn on and cause injury. G Warning! Wiper blades are components that are subject to wear and tear. Replace the wiper blades twice a year, preferably in the spring and fall. Otherwise the windows will not be wiped properly. As a result, you may not be able to observe surrounding traffic conditions and could cause an accident.

! Never open the hood when a front wiper

arm is folded forward. Hold on to the wiper when folding a wiper arm back. If released, the force of the impact from the tensioning spring could crack the windshield or the rear window. Do not allow a wiper arm to contact the windshield glass or the rear window without a wiper blade inserted. Mercedes-Benz recommends that you have this work carried out at an authorized Mercedes-Benz Center.

X Remove the SmartKey from the starter

switch.

Vehicles with KEYLESS-GO: X Make sure the vehicle’s on-board

electronics have status 0 (Y page 80).

Removing wiper blades Front wiper blades ! Do not pull on the wiper blade inserts.

They could tear.

X Fold the wiper arms forward until they

engage.

X Press tabs ; together. X Tilt wiper blade : away from wiper arm

=.

X Take off wiper blade : in direction of

arrow.

Rear wiper blade ! Do not pull on the wiper blade insert. It

could tear.

X Fold wiper arm : away from the rear

window until it engages.

X Turn wiper blade ; as far as it will go.

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Flat tire 319

X Hold wiper arm : and disengage wiper

blade ; by carefully sliding it in direction of arrow.

X Remove wiper blade ;.

Rear wiper blade

Installing wiper blades Front wiper blades

X With guide tab = sliding into opening ?,

place wiper blade : onto wiper arm in direction of arrow.

X Fold wiper blade : towards wiper arm. Tabs ; (Y page 318) must engage into both recesses of attachment ;.

X Check whether the wiper blade is securely

fastened.

X Fold the wiper arm backward to rest on the

windshield. Make sure you hold on to the wiper arm when folding it back.

! Make sure the wiper blades are installed properly. Improperly installed wiper blades may cause windshield damage.

X Insert wiper blade ; into wiper arm :. X Hold wiper arm : and engage wiper

blade ; by pushing it in direction of arrow until it locks into place.

X Check whether the wiper blade is securely

fastened.

X Fold wiper arm : to rest on the rear

window. Make sure to hold on to the wiper when folding the wiper arm back.

! Make sure the wiper blade is installed properly. An improperly installed wiper blade may cause rear window damage.

Flat tire Safety notes Your vehicle may be equipped with: Ra Minispare wheel Ra spare wheel with collapsible tire Ran MOExtended system (your vehicle does

not have a spare wheel or a TIREFIT kit)

Ra TIREFIT kit30 (your vehicle does not have

a spare wheel)

For information on your vehicle’s equipment, see “Rims and tires” (Y page 352).

30 Canada only.

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320 Flat tire

G Warning! The dimensions of the spare wheel are different from those of the road wheels. As a result, the vehicle handling characteristics change when driving with a spare wheel mounted. Adapt your driving style accordingly. The spare wheel is for temporary use only. When driving with a spare wheel mounted, ensure proper tire inflation pressure and do not exceed a vehicle speed of 50 mph (80 km/h). Contact the nearest authorized Mercedes- Benz Center as soon as possible to have the spare wheel replaced with a regular road wheel. Never operate the vehicle with more than one spare wheel mounted. Do not switch off the ESP® when a spare wheel is mounted. G Warning! Vehicles with air suspension program: Do not open or close any doors or the tailgate while mounting a spare wheel. The vehicle could rise or lower to a previously selected level. You or others could be injured as a result.

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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322 Flat tire

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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

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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