ContentsStarter switch positions ..................... 315
SmartKey ..................................... 315
SmartKey with KEYLESS-GO*....... 316
Seats.................................................. 318
Seat adjustment ........................... 318
Seat heating* ............................... 322
Seat ventilation* .......................... 323
Head restraints............................. 324
Multicontour seats*, rear ............. 327
Easy-entry/exit feature ................ 328
Steering wheel ................................... 330
Steering wheel adjustment........... 330
Heated steering wheel* ............... 331
Mirrors ............................................... 332
Interior rear view mirror ............... 332
Exterior rear view mirrors ............. 332
Power folding exterior rear view
mirrors ......................................... 333
Auto-dimming rear view mirrors ... 334
Activating exterior rear view
mirror parking position ................. 335
Memory function................................ 336
Storing positions into memory ..... 337
Recalling positions from memory . 337
Storing exterior rear view mirror
parking position ........................... 338Fastening the seat belts .................... 339
Proper use of seat belts ............... 341
Seat belt height adjustment ......... 341
Lighting.............................................. 342
Exterior lamp switch..................... 342
Combination switch ..................... 346
Corner-illuminating lamps ............ 347
Hazard warning flasher ................ 348
Interior lighting............................. 348
Courtesy lighting .......................... 350
Door entry lamps ......................... 350
Trunk lamp ................................... 350
Windshield wipers.............................. 351
Switching on/off windshield
wipers .......................................... 351
Intermittent wiping....................... 352
Single wipe................................... 352
Wiping with windshield washer
fluid .............................................. 352
Power windows.................................. 353
Opening and closing power
windows ....................................... 353
Rear side window sunshades* ..... 355
Summer opening feature.............. 355
Convenience closing feature ........ 356Driving and parking ........................... 359
Starting the engine ...................... 359
Driving off .................................... 361
Turn signals.................................. 362
Problems while driving ................. 362
Parking......................................... 363
Turning off the engine .................. 365
Releasing seat belts ..................... 366
Automatic transmission..................... 367
Gear selector lever....................... 367
Shifting procedure ....................... 369
Automatic transmission positions 370
Gear ranges ................................. 372
Driving tips................................... 373
Automatic shift program .............. 374
Steering wheel gearshift control .. 375
Emergency operation
(Limp-Home Mode) ...................... 377
Instrument cluster ............................. 378
Adjusting instrument cluster and
COMAND display illumination ...... 378
Coolant temperature gauge ......... 378
Tachometer.................................. 379
Outside temperature indicator ..... 379
Fuel gauge ................................... 379
ContentsOperation......................................... 477
The first 1000 miles (1500 km) ......... 478
Driving instructions ............................ 479
Drive sensibly – save fuel ............. 479
Drinking and driving ..................... 479
Pedals .......................................... 479
Power assistance ......................... 479
Brakes .......................................... 480
Driving off..................................... 481
Parking ......................................... 481
Tires ............................................. 482
Hydroplaning ................................ 483
Tire traction .................................. 483
Tire speed rating .......................... 484
Winter driving instructions ........... 484
Standing water ............................. 485
Passenger compartment .............. 486
Driving abroad .............................. 486
Control and operation of radio
transmitters.................................. 486
Catalytic converter ....................... 487
Emission control........................... 488
Coolant temperature .................... 488At the gas station .............................. 489
Refueling ...................................... 489
Check regularly and before
a long trip ..................................... 490
Engine compartment ......................... 492
Hood ............................................ 492
Engine oil ..................................... 494
Transmission fluid level ................ 497
Active Body Control* (ABC*)
fluid level...................................... 497
Coolant level ................................ 497
Windshield washer system and
headlamp cleaning system ........... 498
Tires and wheels ................................ 500
Important guidelines .................... 500
Tire care and maintenance ........... 501
Direction of rotation ..................... 503
Loading the vehicle ...................... 503
Recommended tire inflation
pressure ....................................... 509
Checking tire inflation pressure ... 511
Tire labeling.................................. 518
Load identification ....................... 521DOT, Tire Identification Number
(TIN) ............................................. 522
Maximum tire load ....................... 523
Maximum tire inflation pressure .. 523
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 524
Tire ply material ........................... 525
Tire and loading terminology........ 526
Rotating tires ............................... 529
Winter driving .................................... 530
Winter tires .................................. 530
Snow chains................................. 531
Maintenance...................................... 532
Maintenance service indicator
message ...................................... 532
Calling up the maintenance
service indicator display .............. 533
Resetting the maintenance
service indicator .......................... 533
Vehicle care....................................... 534
Cleaning and care of vehicle ........ 534
27 At a glance
Cockpit
Item
Page
1
Combination switch
Turn signals
Windshield wipers
High beam
Cornering lamps
362
351
346
347
2
Lever for
Cruise control
DISTRONIC Plus*
380
385
3
Horn
4
Multifunction steering wheel
242
5
Instrument cluster
28
6
Steering wheel gearshift con-
trol
375
7
Gear selector lever for
automatic transmission
359
Item
Page
8
Control panel with
Front passenger front
air bag indicator lamp
Vehicle level control
switch
Electronic Stability Pro-
gram (ESP
®) switch
Parktronic*/Park Assist*
deactivation switch
Swivel COMAND display
COMAND/instrument
cluster illumination
53
401,
403
73
408,
408
81
378
9
COMAND display
79
a
Overhead control panel
37
b
Automatic climate control
Center console, upper part
424
32
Item
Page
c
Glove box lock
448
d
Cover of compartment with
CD changer
PCMCIA card slot
107
108
e
Center console, lower part
33
f
Starter switch
KEYLESS-GO* start/stop but-
ton
315
316
g
Steering wheel adjustment
Heated steering wheel*
330
331
h
Headlamp washer button
346
j
Parking brake
364
k
Hood lock release
492
l
Door control panel
39
m
Night View Assist*
420
n
Exterior lamp switch
342
33 At a glance
Center console
Lower part
Item
Page
1
Favorite button
216
2
Rear head restraints retract
button
325
3
Program mode selector
switch for:
automatic transmission
shift program
suspension tuning of
Airmatic (only S 550) or
ABC*
engine control
374
4
Shortcut button for:
radio
CD/DVD
94
111
5
Back button
87
Item
Page
6
Hazard warning flasher
348
7
Seat operation via COMAND:
Lumbar support
Multicontour seat*
Drive-dynamic
multicontour seat*
236
237
237
240
8
Shortcut button for:
telephone*
navigation
115
148
9
COMAND controller
82
a
COMAND on/off switch
79
b
Volume adjustment
89
c
Mute function
89
d
Telephone keypad
117
217 Control systems
COMAND system settings
Changing setting: Rotate ymz and
select desired function.
Saving setting and exit the menu:
Press n.
Bluetooth settings
General information about Bluetooth
Bluetooth technology is the standard for
short-range wireless data transmission of
up to approximately 10 meters. Bluetooth
can be used to exchange vCards or make
calls using a headset.
Activate or deactivate Bluetooth
Select “Vehicle” “System Settings”
“Services” “Deactivate Blue-
tooth”.
You have activated or deactivated Blue-
tooth. A checkmark appears when
Bluetooth is deactivated.Connecting Bluetooth devices
It is possible to establish a Bluetooth con-
nection between COMAND and the follow-
ing types of device:
Mobile phone (only for transferring
business cards)
Headset
Laptop / PDA
You can connect up to twelve devices to
COMAND but only one device can be ac-
tive at a time.
The connection process includes search-
ing for the device and its subsequent au-
thorization.Calling up the Bluetooth device list and
searching for devices
Calling up the list: Select “Vehicle”
“System Settings” “Services”
“Search for Bluetooth devices”.
When you call up the list for the first
time after switching on COMAND, the
search for devices in the reception
range starts automatically. You will see
a display to this effect.
The device list appears after a short
while.
Canceling search:
Select “Cancel”.
The second time you call up the list, and
each time thereafter, the device list ap-
pears immediately if COMAND has not
been switched off and on again in the
meantime.
Starting search manually:
select “Update”.
i
To connect a Bluetooth device, the Blue-
tooth function must be activated in COMAND
and in the device concerned. The Bluetooth de-
vice must also be set to “visible” or “findable” in
order for COMAND to find and display it. For the
setting procedures, please see the operating in-
structions for the Bluetooth device.
303 Controls in detail
Locking and unlocking
Starter switch positions
Seats
Steering wheel
Mirrors
Memory function
Fastening the seat belts
Lighting
Windshield wipers
Power windowsDriving and parking
Automatic transmission
Instrument cluster
Driving systems
Automatic climate control
Trunk
Power tilt/sliding sunroof
Panorama roof with power
tilt/sliding panel*
Loading and storing
Useful features
315 Controls in detail
Starter switch positions
Starter switch positions
SmartKeyStarter switch
0For removing SmartKey
1Power supply for some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary.
If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 544).
3Starting positionFor information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 359).
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
i
When you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps (ex-
cept high beam headlamp indicator lamp and
turn signal indicator lamps if activated) should go
out when the engine is running. This indicates
that the respective systems are operational.
i
When the SmartKey is removed from the
starter switch and the automatic transmission is
in a position other thanP, the automatic trans-
mission automatically shifts to P.
!
If the SmartKey cannot be turned in the
starter switch, the battery may not be sufficient-
ly charged.
Check the battery and charge it if necessary
(page 634).
Get a jump start (
page 639).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.
317 Controls in detail
Starter switch positions
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the automatic transmission
is set toP.
Do not depress the brake pedal.
KEYLESS-GO start/stop button1USA only
2Canada only
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status 0 (as with
SmartKey removed).Position 1
Press the KEYLESS-GO start/stop but-
ton once.
This supplies power for some electrical
consumers, such as seat adjustment.
Ignition (or position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 544).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 360).
i
If you now press the KEYLESS-GO
start/stop button
once again, the ignition (position2) is
switched on
twice, the power supply is again switched off
i
If you now press the KEYLESS-GO
start/stop button once, the power supply is
again switched off.
i
When you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps (ex-
cept high beam headlamp indicator lamp and
turn signal indicator lamps if activated) should go
out when the engine is running. This indicates
that the respective systems are operational.