2009 Mercedes-benz M Class Owners Manual

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 in the starter switch. RPress button k or j on the

SmartKey.

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

1 Emergency release lever

Practical hints

Unlocking/locking manually 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.

Fuel filler flap 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 behind a cover in the right side trim panel of the cargo compartment. X Open the tailgate (Y page 90). X Remove right side trim panel

(Y page 361).

351

Practical hints

Resetting activated head restraints

1 Fuel filler flap release X Pull yellow fuel filler flap release 1 in

direction of arrow. The fuel filler flap is unlocked.

X Open the fuel filler flap (Y page 237).

352

Resetting activated head restraints

If the active head restraints have been triggered in a rear-end collision, the active head restraints must be reset. You can tell that the active head restraints have been triggered when they have been moved forward and cannot be adjusted. G Warning! For safety reasons, have the active 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.

i For your convenience, we recommend that you have this work carried out at an authorized Mercedes-Benz Center.

1 Pull 2 Adjust downward 3 Press X Pull the top of the head restraint cushion in

direction of arrow 1 as far as it will go.

X Adjust the head restraint cushion

downward in direction of arrow 2 as far as it will go.

X Firmly press the top of the active head

restraint cushion towards the head

restraint cover in direction of arrow 3 until it engages.

X Repeat this procedure on the active head

restraint for the second front seat.

For information on active head restraints, see “Active head restraints” (Y page 66).

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 require sellers of batteries to accept old batteries for recycling.

Practical hints

Replacing SmartKey batteries When inserting the batteries, make sure they are clean and free of lint. When replacing batteries, always replace both 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 350).

1 Mechanical key 2 Battery compartment

353

Practical hints

Replacing bulbs X Insert mechanical key 1 into opening. X Press mechanical key 1 in direction of

arrow. Battery compartment 2 is unlatched. X Pull battery compartment 2 out of the

SmartKey housing.

3 Batteries 4 Contact springs X Pull out batteries 3. X Insert new batteries 3 under contact

springs 4 with the positive terminal (+) side facing up.

X Return battery compartment 2 into

SmartKey housing until it locks into place.

354

X Slide mechanical key 1 back into the

SmartKey.

X Check the operation of the SmartKey as

well as the KEYLESS-GO function.

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 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.

Bulbs

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.

Practical hints

Replacing bulbs

Front lamps

Lamp

1 Parking and standing

lamp

Type

W 5 W

2 Halogen headlamp:

H7 (55 W)

High-beam lamp/High- beam flasher lamp

Bi-Xenon headlamp: High-beam flasher lamp/High-beam flasher spot lamp

H7 (55 W)

3 Halogen headlamp:

Low beam

Bi-Xenon headlamp: Low and high beam26

H7 (55 W)

D1S-35 W

4 Additional turn signal

lamp

LED

5 Side marker lamp

WY 5 W

26 Vehicles with Bi-Xenon headlamps: Low beam and high beam use the same D1S-35 W lamp. Do not replace the Bi-Xenon bulbs yourself. Contact an authorized

Mercedes-Benz Center.

355

Practical hints

Replacing bulbs

Lamp

6 Turn signal lamp

7 Front fog lamp

Corner-illuminating front fog lamp

Rear lamps Vehicles with standard rear lamps

Lamp

8 High-mounted brake

lamp

9 Brake lamp

a Backup lamp

b Turn signal lamp

c Side marker lamp

Type

LED

P 21 W

P 21 W

PY 21 W

P 21 W

356

Type

3457 AK S-8

H11 (55 W)

H11 (55 W)

Lamp

d Tail lamp, parking and standing lamp, rear fog lamp (driver’s side only)

Type

P 21 W

e License plate lamps

C 5 W

Vehicles with LED rear lamps

Lamp

8 High-mounted brake

lamp

9 Brake lamp

a Backup lamp

b Turn signal lamp

c Side marker lamp

d Tail lamp, parking and

standing lamp

Type

LED

LED

W 16 W

LED

LED

LED

Rear fog lamp (driver’s side only) (two bulbs)

W 16 W

e License plate lamps

C 5 W

Notes on bulb replacement 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.

Have the LEDs and bulbs for the following lamps replaced at an authorized Mercedes- Benz Center: RAdditional turn signal lamps in the exterior

rear view mirrors

RHigh-mounted brake lamp RBi-Xenon lamps RHigh-beam flasher spot lamp (vehicles with

Bi-Xenon headlamps only)

! Do not replace the LEDs yourself. You

could otherwise damage the LEDs or parts of the vehicle. Only have the LEDs replaced at an authorized Mercedes-Benz Center.

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

M.

X Open the hood (Y page 239).

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)

Practical hints

Replacing bulbs X Gently press the new bulb into bulb socket

6.

X Place bulb socket 6 back into the housing

and turn it clockwise until it engages.

X Align housing cover 1 and turn it

clockwise until it engages.

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

1 Housing cover for low-beam halogen or Bi-

Xenon headlamp

2 Housing cover for high-beam halogen

bulb (high beam and high-beam flasher) 3 Bulb socket for parking and standing lamp

bulb

4 Bulb socket for front turn signal lamp bulb 5 Bulb socket for side marker lamp bulb

6 Bulb socket for low-beam headlamp X Turn housing cover 1 counterclockwise

and remove it.

X Turn bulb socket 6 with the bulb counterclockwise and remove it.

X Pull the bulb out of bulb socket 6.

7 Bulb socket for high-beam headlamp X Turn housing cover 2 counterclockwise

and remove it.

X Turn bulb socket 7 with the bulb counterclockwise and remove it.

X Pull the bulb out of bulb socket 7.

357

Removing front fog lamp cover

Removing front fog lamp cover (vehicles with corner-illuminating front fog lamp) Corner-illuminating front fog lamp 1 is fixed to cover 3.

1 Cover 2 Front fog lamp X Insert a suitable object (e.g. a screwdriver) at point indicated by the arrow and pry out cover 1. Cover 1 is released.

X Swing cover 1 outwards and take it off.

1 Corner-illuminating front fog lamp 2 Screws 3 Cover X Remove screws 2. X Take off cover 3.

Practical hints

Replacing bulbs X Gently press the new bulb into bulb socket

7.

X Place bulb socket 7 back into the housing

and turn it clockwise until it engages.

X Align housing cover 2 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 3, 4 or 5

(Y page 357) 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 3, 4 or 5 back into the housing and turn it clockwise until it engages.

Front fog lamp bulb ! If not done carefully and properly, damage

to the bumper can result. It is recommended to have this work carried out at an authorized Mercedes-Benz Center.

358

Removing front fog lamp cover (vehicles with AMG Sport Package and ML 63 AMG)

Accessing and replacing the front fog lamp bulb

Practical hints

Replacing bulbs

1 Cover 2 Front fog lamp A recess is located on the outer edge of cover 1 (indicated by arrow). ! Do not use sharp objects such as a screw

driver to remove the cover from the bumper, as this could damage it.

X Insert a flat, blunt plastic object into the

recess.

X Put a soft cloth as a cushion between the

object in the recess and the bumper.

X Pry out cover 1 carefully and pull it out.

Example illustration front fog lamp (vehicles with AMG Sport Package and ML 63 AMG similar) 1 Front fog lamp 2 Retaining screws X Remove retaining screws 2.

i Corner-illuminating front fog lamps fixed to cover 3 (Y page 358) do not have to be screwed off.

X Remove front fog lamp 1 from the

bumper.

X Pull electrical connector off.

3 Bulb socket for front fog lamp bulb X Turn bulb socket 3 with the bulb counterclockwise and remove it.

X Pull the bulb out of bulb socket 3. X Gently press the new bulb into bulb socket

3.

X Place bulb socket 3 back into the housing

and turn it clockwise until it engages.

X Plug in the electrical connector. Front fog lamps with separat cover: X Insert front fog lamp 1 into bumper. X Fasten retaining screws 2. X Reinsert the cover and press it in until it

engages.

359

Practical hints

Replacing bulbs Corner-illuminating front fog lamps fixed to cover: X Reinsert cover 3 (Y page 358) into

bumper.

X Fasten screws 2 (Y page 358).

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

M.

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.

360

Opening the driver’s side trim panel

Removing storage compartment

1 Lock 2 Cover X Turn lock 1 by 90° in direction of the

arrow.

X Remove cover 2.

Example illustration storage compartment without sound system 1 Lock 2 Storage compartment X Remove everything from storage

compartment 2.

X Insert a suitable object such as a coin into

the slot of lock 1.

X Turn lock 1 by 90° in direction of the

arrow.

X Remove storage compartment 2.

Opening the passenger side trim panel

Replacing bulbs

Practical hints

Replacing bulbs

1 Lock 2 Cover X Insert a suitable object such as a coin into

the slot of lock 1.

X Turn lock 1 by 90° in direction of the

arrow.

X Remove cover 2.

Example illustration standard rear lamp passenger side 1 Brake lamp bulb socket 2 Backup lamp bulb socket 3 Tail lamp, parking and standing lamp and

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

4 Side marker lamp bulb socket 5 Rear turn signal lamp bulb socket

Example illustration LED rear lamp passenger side 1 Backup lamp bulb socket 2 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.

361

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 B. 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 239).

Practical hints

Replacing bulbs

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 Replace the bulb. X Reinstall lamp cover 2. X Retighten screws 1.

Adjusting headlamp aim

X Close the tailgate.

License plate lamps

1 V Vertical centerline 2 H Horizontal mounting height, measured

from the center

1 Screws 2 Lamp cover X Loosen screws 1 of lamp cover to be

removed.

X Remove lamp cover 2.

362

checked at an authorized Mercedes-Benz Center.

Practical hints

Replacing wiper blades

Replacing wiper blades Safety notes G Warning! For safety reasons, switch off wipers and remove SmartKey from 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 properly wiped. 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.

363

Example illustration headlamp driver’side 3 Headlamp vertical adjustment screw 4 Headlamp vertical adjustment screw X Always turn adjustment screws 3 and 4
simultaneously for vertical adjustment until the headlamp is adjusted as shown in 1. Turn clockwise for upward movement and counterclockwise for downward movement. Graduations: RScrew 3: 0.50° pitch RScrew 4: 0.67° pitch

The left and right headlamps must be adjusted individually. i If it is not possible to obtain a proper headlamp adjustment, have the system

Practical hints

Replacing wiper blades

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 95).

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.

364

1 Wiper blade 2 Tab 3 Wiper arm X Press tabs 2 together. X Tilt wiper blade 1 away from wiper arm

3.

X Take off wiper blade 1 in direction of

arrow.

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

could tear.

1 Wiper arm 2 Wiper blade X Fold wiper arm 1 away from the rear

window until it engages.

X Turn wiper blade 2 as far as it will go. X Hold wiper arm 1 and disengage wiper

blade 2 by carefully sliding it in direction of arrow.

X Remove wiper blade 2.

Installing wiper blades

Front wiper blades

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 properly installed. Improperly installed wiper blades may cause windshield damage.

Rear wiper blade

1 Wiper blade 2 Attachment 3 Guide tab 4 Opening X With guide tab 3 sliding into opening 4,

place wiper blade 1 onto wiper arm in direction of arrow.

X Fold wiper blade 1 towards wiper arm. Tabs 2 (Y page 364) must engage into both recesses of attachment 2.

1 Wiper arm 2 Wiper blade

Practical hints

Replacing wiper blades X Insert wiper blade 2 into wiper arm 1. X Hold wiper arm 1 and engage wiper blade 2 by pushing it in direction of arrow until it locks into place.

X Check whether the wiper blade is securely

fastened.

X Fold the 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 properly installed. An improperly installed wiper blade may cause rear window damage.

365

Practical hints

Flat tire 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)

Ra TIREFIT kit27 (your vehicle does not have

a spare wheel)

For information on your vehicle’s equipment, see “Rims and tires” (Y page 401). 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 spare wheel mounted, ensure proper tire inflation pressure and do not exceed a vehicle speed of 50 mph (80 km/h).

27 Canada only. 366

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 170).

X Park the vehicle in a safe distance from

moving traffic on a hard, flat surface when possible.

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. 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: You can use the power outlet in the second- row footwell to operate the electric air pump 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 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.

Practical hints

Flat tire

Two-part sticker 1 Sticker for instrument cluster 2 Sticker for wheel X Attach sticker part 1 where it will be easily

seen by the driver on the instrument cluster.

X Attach sticker part 2 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.

367

Practical hints

Flat tire If clothing comes in contact with TIREFIT, change clothing as soon as possible. In case of allergic reaction or rash, consult a physician immediately. 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. Keep away from open flame or heat source.

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.

368

5 Air hose 6 Flange 7 Flap

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 2
1 TIREFIT container 2 Notch 3 Electric air pump switch 4 Electrical plug 5 Air hose 6 Flange X Version 1 only: Open flap 7 on the

electric air pump.

X Pull plug 4 and air hose 5 out of the pump

housing.

Version 1
1 TIREFIT container 2 Notch 3 Electric air pump switch 4 Electrical plug

X Screw the air pump’s air hose 5 onto

flange 6 of TIREFIT container 1.

X Stick TIREFIT container 1 upside down into notch 2 of the electric air pump.

8 Filler hose 9 Tire valve X Unscrew the valve cap of the damaged tire

from tire valve 9.

Version 1
a Vent screw b Pressure gauge X Version 1 only: Close vent screw a on

pressure gauge b.

X Screw filler hose 8 onto tire valve 9. X Insert electrical plug 4 into the power

outlet in the second-row footwell (Y page 221).

! 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.

Practical hints

Flat tire 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 3.

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). 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.

369

Practical hints

Flat tire

You may operate the air pump again after it has cooled off.

X If the tire inflation pressure of at least

26 psi (1.8 bar) is not attained, turn off the electric air pump by pressing 0 on electric air pump switch 3.

X Detach filler hose 8 from tire valve 9. 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 Unscrew the air pump’s air hose 5 from

flange 6 of TIREFIT container 1.

X Screw air hose 5 onto tire valve 9. 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.

370

X After attaining a tire inflation pressure of at least 26 psi (1.8 bar), press 0 on electric air pump switch 3. The electric air pump is switched off.

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 brake pedal.

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

X Place the electric air pump back in the

cargo compartment.

X Close the cargo compartment. X Drive off immediately.

The TIREFIT sealant will distribute itself evenly inside the tire.

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.

X After driving the vehicle for an initial 10 minutes, check the tire inflation pressure using pressure gauge 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.

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):

Version 2
a Deflate button b Pressure gauge X To increase tire inflation pressure: Switch

on the electric air pump.

X Version 1: To decrease tire inflation

pressure, open vent screw a on pressure gauge b (Y page 369).

or X Version 2: To decrease tire inflation

pressure, press yellow deflate button a

located in air pump housing next to pressure gauge b. G Warning! Follow recommend inflation pressures. Do not overinflate tires. Overinflating tires can result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes, etc. Do not underinflate tires. Underinflated tires wear unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Do not overload the tires by exceeding the specified vehicle capacity weight (as indicated by the label on the pillar in the driver’s door opening). Overloading the tires can overheat them, possibly causing a blowout.

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.

Practical hints

Flat tire

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 366).

X Take the following out of the vehicle:

Rspare wheel Rjack Rwheel wrench Rcollapsible wheel chock Ralignment bolt Relectric air pump (required for vehicles

with spare wheel with collapsible tire only)

371

Practical hints

Flat tire For information on where to find the respective items, see “Where will I find ...?” (Y page 298) and (Y page 302).

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

372

capacity jackstands before working under the vehicle. Always firmly set the parking brake and block the wheels with wheel chocks or other 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. One wheel chock is included with the vehicle tool kit (Y page 298). For information on setting up the collapsible wheel chock, see (Y page 300).

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 wheel on a level surface

Changing rear wheel on passenger side (example illustration) X Place the wheel chock in front of and

another sizeable object behind the wheel that is diagonally opposite to the wheel being changed.

Changing 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, place the wheel chock and another sizeable object as follows:

Changing wheel on passenger side (example illustration) X Place the wheel chock and another sizeable object in front of both wheels on the side opposite to the side on which the wheel is to be changed.

Changing 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, place the wheel chock and another sizeable object as follows:

Practical hints

Flat tire X On wheel to be changed, loosen but do not yet remove the wheel bolts (approximately one full turn with wrench 1).

Changing wheel on passenger side (example illustration) X Place the wheel chock and another sizeable

object in behind both wheels on the side opposite to the side on which the wheel is to be changed.

1 Wheel wrench

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.

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Practical hints

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

2 Take-up bracket 3 Jack 4 Ratchet X Attach reversible ratchet 4 to jack 3 in such a way that the word UP can be seen.

X Place jack 3 on firm ground. X Position jack 3 under take-up bracket

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

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Removing the wheel

X Turn ratchet 4 up and down until jack 3
is fully seated in take-up bracket 2 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.

1 Alignment bolt X Unscrew uppermost wheel bolt and remove

it.

X Replace this wheel bolt with alignment bolt

1 supplied with the vehicle tool kit.

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. This could cause an accident. Be 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.

Practical hints

Flat tire ! To avoid paint damage, place wheel flat

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

1 Wheel bolt for 18", 19", 20" and 21" light

alloy wheels, and spare wheel with collapsible tire

2 Wheel bolt for Minispare wheel (located in

vehicle tool kit)

! Wheel bolts 2 must be used when

mounting the Minispare wheel. The use of any wheel bolts other than wheel bolts 2
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.

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 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

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Practical hints

Flat tire

tire” (Y page 376) and then “Lowering the vehicle” (Y page 378).

or X Vehicles with Minispare wheel: Continue the procedure by following the instructions under “Lowering the vehicle” (Y page 378).

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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4 Air hose with pressure gauge and vent

screw

5 Union nut

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 2
2 Air pump switch 3 Electrical plug 4 Pressure gauge 5 Union nut 6 Deflate button X Version 1 only: Open flap 1 on electric

air pump.

X Version 1 only: Pull out electrical plug 3 and air hose with pressure gauge 4.

X Version 2 only: Pull electrical plug 3 and

the air hose out of the pump housing bottom.

Version 1
1 Flap 2 Air pump switch 3 Electrical plug

X Version 1 only: Close vent screw on air

hose 4.

X Remove the valve cap from the collapsible

tire valve.

X Screw union nut 5 onto the collapsible tire

valve.

X Make sure air pump switch 2 is set to 0. X Insert electrical plug 3 into the power

outlet in the second-row footwell (Y page 221).

! 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 2. 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 406). 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 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

Practical hints

Flat tire inflation pressure given on the yellow label on the spare wheel rim.

X Press 0 on electric air pump switch 2. 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 406), decrease tire pressure using the vent screw on air hose 4.

X Version 2 only: If the tire inflation pressure

is above the recommended tire inflation pressure as specified for your vehicle (Y page 406), decrease tire pressure using deflate button 6. G Warning! Follow recommend inflation pressures. Do not overinflate tires. Overinflating tires can result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes, etc.

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Practical hints

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

X Detach the electric air pump. X Reinstall collapsible tire valve cap. X Version 1 only: Store electrical plug 3
and air hose 4 behind flap 1 and place the electric air pump back in its designated storage space.

X Version 2 only: Store electrical plug 3

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

378

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 301).

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 302). 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 Vehicles with TPMS:

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.

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.

1 – 5 Wheel bolts X Tighten the five wheel bolts evenly,

following the diagonal sequence illustrated (1 to 5), 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

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 Run Flat Indicator (Y page 254) or the TPMS (Y page 255). The maximum distance in emergency mode depends on the vehicle’s load. It is 30 miles (50 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 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

Practical hints

Flat tire

“MOExtended” are mounted in the size specified for your vehicle (Y page 401).

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Practical hints

AdBlue® (diesel engine only) 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 ú (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 gear 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 of 40 seconds or until the engine runs surge-free.

If the engine does not start:

380

X Wait for approximately 2 minutes. X Turn the SmartKey in the starter switch to position 3 and hold it there for a maximum of 40 seconds or until the engine runs surge-free.

If the engine still does not start, do not make any further attempts to start the engine. Contact an authorized Mercedes-Benz Center or call Roadside Assistance (Y page 225). i When the malfunction indicator lamp

ú (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. 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 225). 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

Practical hints

AdBlue® (diesel engine only) 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.

For more information on AdBlue®, see (Y page 417). The AdBlue® filler neck is located under the cargo compartment floor. X Switch off the ignition. X Open the tailgate (Y page 90). X Lift the cargo compartment floor

(Y page 299).

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Practical hints

AdBlue® (diesel engine only)

1 AdBlue® filler cap cover X Turn cover 1 counterclockwise and

remove it.

2 AdBlue® filler cap

382

X Turn filler cap 2 counterclockwise and

open it. Filler cap 2 is tethered with a plastic strap.

X Push AdBlue® refill container 3 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 3. X Turn AdBlue® refill container 3
counterclockwise and remove it.

X Place filler cap 2 (Y page 382) on filler

neck and turn it clockwise.

1 AdBlue® filler cap cover

3 AdBlue® refill container X Pull dust cap off of AdBlue® refill container

3.

X Place AdBlue® refill container 3 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 Place cover 1 as illustrated and turn it

clockwise to its stop.

X Start the engine.

i If the message Check Additive See Operator’s Manual still appears in the multifunction display, refill with one more container of AdBlue®.

X Lower cargo compartment floor. X Close the tailgate.

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! 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.

Practical hints

Battery

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.

Batteries contain materials that can harm the environment if disposed of improperly. Large 12-volt storage batteries contain lead. 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.

383

Practical hints

Battery G Warning! Failure to follow these instructions can result in severe injury or death. Never lean over batteries while connecting. 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. 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.

! 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

384

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. Even though VRLA batteries do not require topping-up of the electrolyte level and cannot be opened to check the electrolyte level, the battery condition must be checked periodically by performing a battery conductance test. Refer to Maintenance Booklet for battery condition testing intervals. The factory-equipped VRLA battery is leak- proofed. Only use a battery as replacement that has the same security features and is of identical size, voltage, and capacity as the factory-equipped battery.

! As with any other battery, have the

battery disconnect at a qualified workshop or an authorized Mercedes-Benz Center if you do not intend to operate your vehicle for an extended period of time to prevent battery discharge. 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.