
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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For information on filling up the washer
reservoir, see “Washer system and headlamp
cleaning system” ( Y page 325).
For information on cleaning the headlamps
with washer fluid, see “Headlamp cleaning
system” ( Y page 252).
Problems with wipers
!  If anything blocks the windshield wipers
(leaves, snow, etc.), switch them off
immediately.
For safety reasons, do the following before
attempting to remove any blockage:
R Stop the vehicle in a safe location.
R Turn off the engine by pressing the
KEYLESS-GO start/stop button and
open the driver’s door (with the driver’s
door open, starter switch is in position
0 , same as with SmartKey removed from
starter switch).
or
R Remove the SmartKey from the starter
switch.
R Engage the electronic parking brake.
R Remove blockage.
R Turn the windshield wipers on again.
If the windshield wipers fail to function at
all with the combination switch in position
0062  or 0063 ,
R set the combination switch to the next
higher wiper speed
R have the windshield wipers checked at
the nearest authorized Mercedes-Benz
Center
Power windows
Opening and closing
The door windows are opened and closed
electrically. The switches for all windows are
located on the driver’s door. The switch for
operating the passenger-side windows is
located on the passenger door.GObserve Safety notes, see page 57.GWarning!
When opening or closing the door windows,
make sure there is no danger of anyone being
harmed by the opening/closing procedure.
The door windows are equipped with the
express operation and automatic reversal
function. If in express operation mode a door
window encounters an obstruction that
blocks its path, the automatic reversal
function will stop the door window and open
it slightly.
The door windows operate differently when
the switch is pulled and held. See the “Closing
when a door window is blocked” section in
this chapter for details.
The closing of the door windows can be
immediately halted by releasing the switch or,
if the switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing the door windows by pressing
and holding button  0037 on the SmartKey the
automatic reversal function will not operate.
i You can also open or close the door
windows using the SmartKey, see
“Summer opening feature” ( Y page 256)
and “Convenience closing feature”
( Y  page 257).
i After switching off the ignition or
removing the SmartKey from the starter
switch, you can operate the door windows
until you open a door. If no door was
opened you can operate the door windows
for up to 5 minutes.
Power windows255Controls in detailBA 197 USA, CA Edition A 2011; 1; 27, en-UShereepeVersion: 3.0.3.52010-03-24T15:31:10+01:00 - Seite 255Z 

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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