XInsert the new battery with the positive
terminal (+) facing up. Use a lint-free cloth.
XInsert the tabs of the battery compartment
cover into the housing and press the cover
closed.
XSlide mechanical key : back into the
SmartKey.
XCheck the operation of the SmartKey.
Replacing batteries (SmartKey with
KEYLESS-GO)
XInsert mechanical key : into opening.XPress mechanical key : in direction of
arrow.
Battery compartment ; is unlatched.
XPull battery compartment ; out of the
SmartKey housing.
XPull out batteries =.XInsert new batteries = under contact
springs ? with the positive terminal (+)
side facing up.
XReturn battery compartment ; into
SmartKey housing until it locks into place.
XSlide mechanical key : back into the
SmartKey.
XCheck the operation of the SmartKey as
well as the KEYLESS-GO function.
Remote control for Rear Seat
Entertainment System and/or
SPLITVIEW
The remote control contains two batteries of
size AAA, 1.5 V.
XRemove the cover of battery compartment
3 on the back of the remote control by
pressing down the snap-fit hook 2.
XTake out the empty batteries 5.XInsert the new batteries. Mind the polarity
marks on the batteries.
Battery on the left:
The positive terminal (+) must face
upwards.
Battery on the right:
Replacing batteries (SmartKey, remote control, headphone)503Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 503Z
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.
iMercedes-Benz recommends using
Longlife (LL) bulbs.
Replacing bulbs for front lamps
GWarning!
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.
Before you start to replace a bulb for a front
lamp, do the following:
XSwitch off the ignition.XTurn the exterior lamp switch to position
$.
XOpen the hood (Y page 404).
High-beam spot (vehicles with halogen
daytime running lamps)
XTurn housing cover : counterclockwise
and remove it.
XTurn bulb socket ; counterclockwise and
pull it out.
XPull the bulb out of bulb socket ;.XInsert the new bulb into bulb socket ;.XInsert bulb socket ;.
Driver’s side headlamp: Wire = is guided
to the upper right.
Passenger-side headlamp: Wire = is
guided to the lower left.
XTurn bulb socket ; clockwise.
Handle ? of bulb socket ; is in a
horizontal position.
XAlign housing cover : and turn it
clockwise.
High-beam spot (vehicles with LED
daytime running lamps)
or
infrared light (Night View Assist Plus)
i To replace bulbs of the driver’s side
headlamp, the washer fluid reservoir in the
engine compartment must be released.
Have such work performed at an authorized
Mercedes-Benz Center.
XTurn housing cover : counterclockwise
and remove it.
XTurn bulb socket ; counterclockwise and
pull it out.
XPress both tabs to the left and right of bulb
socket ; and pull the bulb out of bulb
socket ;.
XInsert and press the new bulb into bulb
socket ; until it engages.
506Replacing bulbsPractical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 506
XInsert bulb socket ; into the guide on the
headlamp.
Wire = is guided to the lower right.
XTurn bulb socket ; clockwise.
Wire = is guided to the lower left.
XAlign housing cover : and turn it
clockwise.
Replacing bulbs for rear lamps
Tail lamp unit
The tail lamps are equipped with HiP bulbs
and LEDs. Have them replaced at an
authorized Mercedes-Benz Center.
Replacing wiper blades
Safety notes
GWarning!
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.
GWarning!
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 windshield will not be wiped
properly. As a result, you may not be able to
observe surrounding traffic conditions and
could cause an accident.
! To avoid damage to the hood, the wiper
arms should only be folded forward when
in the vertical position.
! Never open the hood when a 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.
Do not allow a wiper arm to contact the
windshield glass without a wiper blade
inserted.
Mercedes-Benz recommends that you have
this work carried out at an authorized
Mercedes-Benz Center.
Placing wiper arms in vertical position
Wiper arms in vertical position
XMake sure the hood is fully closed.
Vehicles with SmartKey
XTurn the SmartKey in the starter switch to
position 1.
XTurn the combination switch to wiper
setting °.
XWith wiper arms in vertical position, turn
the SmartKey in the starter switch to
position 0.
XRemove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO
XMake sure the vehicle’s on-board
electronics have status 1.
XTurn the combination switch to wiper
setting °.
Replacing wiper blades507Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 507Z
XPress the KEYLESS-GO start/stop button
repeatedly until the windshield wipers
start.
XPress the KEYLESS-GO start/stop button
when the wiper arms are in a vertical
position.
Removing wiper blades
! Do not pull on the wiper blade inserts.
They could tear.
XFold the wiper arm forward until it snaps
into place.
XTurn the wiper blade in direction of
arrow :.
XSlide the wiper blade sideways out of the
retainer in the direction of arrow ;.
Installing wiper blades
XSlide the wiper blade onto the wiper arm
until it locks in place.
XRotate the wiper blade into a position
parallel to the wiper arm.
XFold the wiper arm backward to rest on the
windshield.
Make sure you hold on to the wiper when
folding the wiper arm back.
! Make sure the wiper blades are installed
properly. Improperly installed wiper blades
may cause windshield damage.
Flat tire
Safety notes
GWarning!
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 ESC when a spare wheel
is mounted.
Preparing the vehicle
XWhenever possible, park the vehicle in a
safe distance from moving traffic on a hard,
flat surface.
XTurn on the hazard warning flasher.XTurn the steering wheel so that the front
wheels are in a straight-ahead position.
XEngage the electronic parking brake.XShift the automatic transmission into park
position P.
XTurn off the engine.XRemove the SmartKey from the starter
switch.
or
XVehicles 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.
508Flat tirePractical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 508
Open doors only when conditions are safe
to do so.XVehicles with KEYLESS-GO: Remove the
KEYLESS-GO start/stop button from the
starter switch.XHave any passenger exit the vehicle at a
safe distance from the roadway. Open
doors only when conditions are safe to do
so.
Mounting the spare wheel
Introduction
XPrepare the vehicle as described
( Y page 508).XTake the following out of the vehicle:
R spare wheel
R jack
R vehicle tool kit
For information on where to find the
respective items, see “Where will I find ...?”
( Y page 450) and ( Y page 451).
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
GWarning!
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 make sure the electronic parking
brake is engaged. In addition, block the
wheels with wheel chocks or other sizeable
objects before raising the vehicle with the
jack. Do not disengage the electronic 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.XPrevent 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 450). For information on setting up
the collapsible wheel chock, see
( Y page 450).Flat tire509Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 509Z
When changing a wheel on a level surface:XPlace 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.
Always try lifting the vehicle using the jack on
a level surface. However, should
circumstances require you to do so on a hill:
XPlace 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.
GWarning!
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.
XOn the wheel to be changed, loosen but do
not yet remove the wheel bolts
(approximately one full turn with wheel
wrench :).
The jack take-up brackets are located directly
behind the front wheel housings and in front
of the rear wheel housings.
GWarning!
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.
! Do not position the jack on the body of
the vehicle, as this may cause damage to
the vehicle.
XPlace jack = on firm ground.XPosition 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.
XTurn crank ? clockwise until jack = is
fully seated in take-up bracket ; and the
jack base evenly meets the ground.
XJack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the ground.
510Flat tirePractical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 510
XGuide the spare wheel onto the alignment
bolt and push it on.
XInsert the wheel bolts and tighten them
slightly.
XUnscrew the alignment bolt.XInstall the last wheel bolt and tighten it
slightly.
Lowering the vehicle
XLower the vehicle by turning the crank
counterclockwise until the vehicle is
resting fully on its own weight.
XRemove the jack.XTighten 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).
GWarning!
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).
XFully collapse the jack, with handle folded
in (storage position), see (Y page 451).
XStore 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 451).
iDo 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.
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.
GWarning!
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not receive all
necessary safety information and warning for
the operation of your vehicle.
GWarning!
Observe all safety instructions and
precautions when handling automotive
batteries.
512BatteryPractical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 512
The factory-equipped battery may only be
replaced with a battery that
R has the same security features
R is of identical size
R is of identical voltage
R is of identical capacity
! As any other battery, the battery may
discharge if you do not operate the vehicle
for an extended period of time. Have the
battery disconnected at a qualified
workshop or an authorized Mercedes-Benz
Center in such a case. You may also
connect an accessory battery charge unit
expressly approved by Mercedes-Benz for
your vehicle model to maintain the battery
charge. Contact an authorized Mercedes-
Benz Center for further information.
The battery, the battery ventilation hose
and the lateral plug must always be
securely installed when the vehicle is in
operation.
! Switch off the engine and switch off the
vehicle’s internal electrical functions
before you disconnect or remove the
battery’s terminal clamps. You could
otherwise destroy electronic assemblies
such as the generator.
Remove SmartKey from starter switch
(vehicles with KEYLESS-GO: Make sure the
vehicle’s on-board electronics have status 0)
when you turn off the engine and no longer
require any electrical consumers. The vehicle
then uses very little power and the battery is
spared.
If the battery is discharged, you must use the
mechanical key to unlock the vehicle.
Charging the battery
GWarning!
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit approved by Mercedes-Benz is
being used. Gases may escape during
charging and could cause an explosion that
may result in personal injury, paint damage or
corrosion.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for
information and availability.
Charge battery in accordance with the
separate instructions for the accessory
battery charger.
Have the battery charged at an authorized
Mercedes-Benz Center. If you charge the
battery yourself, follow the operating
instructions for your charging device.
Only use a battery charge unit with a
maximum charging voltage of 14.8 V.XCharge battery in accordance with the
instructions of the battery charger
manufacturer.
Jump starting
GWarning!
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting or
jump starting. You might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
514Jump startingPractical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 514