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
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
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.
377 Controls in detail
Automatic transmission
Emergency operation (Limp-Home Mode)
If vehicle acceleration becomes less re-
sponsive or sluggish or the automatic
transmission no longer shifts, the automat-
ic transmission is most likely operating in
limp-home (emergency operation) mode.
In this mode only second gear and reverse
gear can be selected.
Stop the vehicle in a safe location.
Shift to park positionP.
Turn off the engine.
Wait at least 10 seconds before
restarting.
Restart the engine.
Shift to drive positionD (for second
gear) or reverse gearR.
Have the automatic transmission
checked at an authorized
Mercedes-Benz Center as soon as pos-
sible.
381 Controls in detail
Driving systems
1Setting current or higher speed
Adjustment in 1 mph increments (to re-
sistance point) or 5 mph increments
(past resistance point)
(Canada: 1 km/h or 10 km/h)
2Setting current or lower speed
Adjustment in 1 mph increments (to re-
sistance point) or 5 mph increments
(past resistance point)
(Canada: 1 km/h or 10 km/h)
3Cancel cruise control
4Resume to last set speedActivating cruise control
You can activate cruise control if the vehi-
cle speed is above 20 mph (30 km/h).
In the following cases you cannot activate
cruise control:
when you brake
the vehicle is secured with the electric
parking brake
if the automatic transmission is set to
positionP, R, or N
if ESP
® is switched off
Setting current speed
Accelerate or decelerate to the desired
speed.
Briefly lift the cruise control lever in
direction of arrow1 or depress in
direction of arrow2.
The current speed is set.
Warning!
G
Cruise control brakes automatically so that
the set speed is not exceeded. The brake
pedal depresses when cruise control engag-
es the brakes.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the cruise control system.
Do not place your foot under the brake pedal
– your foot could become caught.
Keep in mind that cruise control is a conve-
nience system designed to assist the driver
during vehicle operation. The driver is and
must always remain responsible for the ve-
hicle’s speed and for safe brake operation.
382 Controls in detailDriving systems
Remove your foot from the accelerator
pedal.
Cruise control is activated.
The last set speed appears in the
multifunction display for approxi-
mately 5 seconds.
The corresponding speedometer
segments from the selected speed
to the vehicle maximum speed in
the multifunction display are illumi-
nated.
The set speed is shown by a triangle
in the speedometer.Canceling cruise control
There are several ways to cancel cruise
control:
Step on the brake pedal.
Cruise control is canceled. The last
speed set is stored for later use.
or
Briefly push the cruise control lever in
direction of arrow3.
Cruise control is canceled. The last
speed set is stored for later use.
i
On uphill grades, cruise control may not be
able to maintain the set speed. Once the grade
eases, the set speed will be resumed.
On downhill grades, cruise control maintains the
set speed with braking from the vehicle’s braking
system. In addition, on longer downhill grades
the automatic transmission will automatically
downshift.
i
Upon switching off the engine, the last
stored speed is deleted.
i
Cruise control switches off automatically
when
you step on the brake pedal
the vehicle is secured with the parking brake
In this case the segments in the multifunc-
tion display go out and no warning sounds.
the vehicle speed is below 20 mph
(30 km/h)
the ESP
® is in operation or switched off with
the ESP® switch (
page 73)
you set the automatic transmission toN
while driving
The segments in the multifunction display go out,
and an acoustic warning sounds.
!
Setting the automatic transmission toN
while driving cancels cruise control. However,
the automatic transmission should not be set
toN while driving except to coast when the vehi-
cle is in danger of skidding (e.g. on icy roads).
i
Depressing the accelerator pedal does not
deactivate cruise control. After brief accelera-
tion (e.g. for passing), cruise control will resume
the last speed set.