
Volume (loudness)COMAND  ......................................... 89
external audio sources  ..........197, 206
mobile phones  ............................... 151
muting COMAND  ............................. 89
navigation announcements  ......89, 137
phone calls  ...................................... 89
voice command  ............................. 208
W
Warning sounds Driver’s or passenger’s seat belt  .....55
Electronic parking brake  ................372
Parktronic system  ..........................296
Seat belt telltale  ............................ 391
Warranty coverage  ............................ 420
Washer and headlamp cleaning
system  ................................................ 429
Washer fluid Messages in the multifunction
display  ........................................... 380
Mixing ratio  .................................... 429
Refilling  .......................................... 325
Washing the vehicle  .......................... 354
Wear pattern (tires)  .......................... 340
Weights (vehicle) see Vehicle specification                          
Wheel
Changing  ....................................... 405
Removing  ....................................... 407
Tightening torque ........................... 409
Wheels, sizes  ..................................... 422
Wheels, Tires and  .............................. 326
Windows see Power windows                                  
Windows, cleaning  ............................ 358
Windshield Cleaning wiper blades .................... 358
Defogging  ...................................... 303
Washer fluid  ................................... 429
Wipers  ........................................... 253
Windshield wipers
Replacing wiper blades  ..................400
Winter driving
Instructions .................................... 348
Snow chains  .................................. 347
Tires ............................................... 347
Winter tires  ....................... 347, 422, 424
Wipers Notes  ............................................. 253
Problems with  ................................ 255
Windshield wipers  ..........................253
Z
ZAGAT ®
 Rating Service  ..................... 131
Zip code of destination, selecting  .... 117
Index25BA 197 USA, CA Edition A 2011; 1; 27, en-UShereepeVersion: 3.0.3.52010-03-24T15:31:10+01:00 - Seite 25 

Exterior viewiThis Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual.FunctionPage0046Trunk:Locking and unlocking236, 397Opening and closing239Valet locking2410047Rear window defroster304008ARear lamps4000088Fuel filler flap3200086Doors:Locking and unlocking236,397FunctionPage0087Windshield:Wiping with washer fluid253Cleaning358006EExterior rear view mirrors246006FWipers253Wiper blades, replacing400Wiper blades, cleaning3580070Hood3220071Headlamp cleaning system2520072Towing eye4150073Front lamps4000074Tires and wheels326Rims and tires42232Exterior viewAt a glance
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RVehicle lighting (Y page 400)
RWasher system and headlamp cleaning
system (Y page 325)
RBrake fluid level (Y page 325)
Engine compartment
Hood
GWarning!
Do not pull the release lever while the vehicle
is in motion. Otherwise the hood could be
forced open by passing air flow.
This could cause the hood to come loose and
injure you and/or others.
Opening
GWarning!
Do not open the hood when the engine is
overheated. You could be seriously injured.
Observe the coolant temperature display to
determine whether the engine may be
overheated. If you see flames or smoke
coming from the engine compartment, move
away from the vehicle. Wait until the engine
has cooled. If necessary, call the fire
department.
GWarning!
You could be injured when the hood is open –
even when the engine is turned off.
Parts of the engine can become very hot. To
prevent burns, let the engine cool completely
before touching any components on the
vehicle. Comply with all relevant safety
precautions.
GWarning!
To help prevent personal injury, stay clear of
moving parts when the hood is open and the
engine is running.
The radiator fan may continue to run for
approximately 30 seconds or may even
restart after the engine has been turned off.
Stay clear of fan blades.
GWarning!
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnostic
socket) of the ignition system
Rwith the engine running
Rwhile starting the engine
Rwhen the ignition is switched on and the
engine is turned manually
XPull hood lock release lever \000F.
The hood is unlocked.
! Never open the hood if the wiper arms are
folded forward away from the windshield.
Otherwise the windshield wipers or the
hood could be damaged.
XPush handle \000G under the hood upwards.XPull up on the hood and then release it.
The hood will be held open at shoulder
height by gas-filled struts automatically.
322Engine compartmentOperation
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XOnly use clean water and a soft, non-
scratching cloth to clean rear view camera
lens  0046.
Be careful not to apply wax to rear view
camera lens  0046 when waxing the vehicle. If
necessary, remove the wax using the
Mercedes-Benz approved Car Shampoo with
plenty of water.
!  Do not clean the camera and the area
around the camera
R with a high-pressure cleaner
R with a dry cloth and strong pressure
R with aggressive cleaning agents
You could otherwise damage the camera.
Cleaning the windows and the wiper
blades
!  The windshield wipers must be in a
vertical position before folding them away
from the windshield. They could otherwise
damage the hood.
Never open the hood when the wiper arms
are folded forward.
XMake sure the hood is fully closed.XSwitch on the ignition.XTurn combination switch to wiper setting
00B6  (Y  page 253).XWith wiper arms in vertical position, switch
off the ignition.GWarning!
For safety reasons, switch off wipers and
remove SmartKey from starter switch before
cleaning the windshield and/or the wiper
blades. KEYLESS-GO: Make sure the vehicle’s
on-board electronics have status  0.
Otherwise, the wiper motor could suddenly
turn on and cause injury.
!  Do not pull on the wiper blade inserts.
They could tear.
XFold the wiper arms forward until they snap
into place.XClean the windshield and the wiper blade
inserts with a clean cloth and mild
detergent solution.XUse a soft, clean cloth and a mild window
cleaning solution on all outside and inside
glass surfaces.
An automotive glass cleaner is
recommended.
!  Fold the windshield wiper arms back onto
the windshield before pressing the
KEYLESS-GO start/stop button or turning
the SmartKey in the starter switch.
Hold on to the wiper when folding the wiper
arm back. If released, the force of the
impact from the tensioning spring could
crack the windshield.
!  To clean the window interior, do not use
a dry cloth, abrasives, solvents or cleaners
containing solvents. Do not touch the
inside of the windows with hard objects
such as an ice scraper or ring. Doing so may
damage the windows.
Light alloy wheels
If possible, clean wheels once a week.
XUse Mercedes-Benz approved Wheel Care,
a soft bristle brush and a strong spray of
water for cleaning the light alloy wheels.
!  Only use acid-free cleaning materials.
Acid may cause corrosion or damage the
clear coat.
!  The vehicle should not be parked for an
extended period of time immediately after
it has been cleaned. This applies especially
after the wheel rims have been cleaned
with wheel rim cleaner. Wheel rim cleaners
can lead to increased corrosion of the
brake disks and brake pads. Non-approved
wheel cleaners may also damage the wheel
paint if the vehicle is not driven after
cleaning.
358Vehicle careOperation
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Vehicle equipment ............................362
Where will I find...?  ...........................362
Vehicle status messages in the
multifunction display  .......................364
What to do if...  ................................... 388
Unlocking/locking manually  ...........397
Replacing SmartKey battery  ............399
Replacing bulbs  ................................. 400
Replacing wiper blades  ....................400
Flat tire  .............................................. 402
Wheel change  .................................... 405
Battery  ............................................... 410
Jump starting  .................................... 413
Towing the vehicle  ............................415
Fuses  .................................................. 417361Practical hintsBA 197 USA, CA Edition A 2011; 1; 27, en-UShereepeVersion: 3.0.3.52010-03-24T15:31:10+01:00 - Seite 361  

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.
GWarning!
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
R touch or move it when hot
R drop the bulb
R scratch 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.
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 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 for front lamps
You cannot replace the bulbs in the front
lamps yourself. Contact an authorized
Mercedes-Benz Center or a qualified
workshop.
Replacing bulbs for rear lamps
Except for the license plate lamp bulbs, you
cannot replace the bulbs in the rear lamps
yourself.
License plate lamps
A bulb of type C 5 W is required.
XSwitch off the ignition.XTurn the exterior lamp switch to position
0027 .XInsert a flat, blunt object into gap  0046
between the lamp lens and the housing.
The latches are released.XPull out the lamp lens together with the flat,
blunt object out of the housing.XReplace the bulb.XInsert the lens of license plate lamp and
press it in until it audibly engages.
Replacing wiper blades
Safety notes
GWarning!
For safety reasons, switch off the wipers and
remove the SmartKey from the starter switch
(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.
400Replacing wiper bladesPractical hints
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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
\000FWiper arms in vertical positionXMake sure the hood is fully closed.XMake sure the vehicle’s on-board
electronics have status 1.
XTurn the combination switch to wiper
setting \000