ContentsSafety and Security........................... 63
Occupant safety................................... 64
Air bags .......................................... 65
Seat belts ....................................... 70
Active head restraints .................... 74
Children in the vehicle .................... 75
Blocking of rear door window
operation ........................................ 82
Panic alarm .......................................... 83
Activating ....................................... 83
Deactivating ................................... 83
Driving safety systems ......................... 84
ABS ................................................ 84
BAS ................................................ 86
ESP
®.............................................. 86
Electro-hydraulic brake system ...... 89
Anti-theft systems................................ 93
Immobilizer..................................... 93
Anti-theft alarm system .................. 93
Tow-away alarm ............................. 95
Controls in detail............................... 97
Locking and unlocking ......................... 98
SmartKey ....................................... 98
SmartKey with KEYLESS-GO* ...... 103
Opening the doors from the inside 111
Opening the trunk ........................ 112
Closing the trunk.......................... 114
Trunk emergency release ............. 120
Valet locking ................................ 121
Automatic central locking ............ 122
Locking and unlocking from
the inside ..................................... 122
Seats ................................................. 124
Front seat active head restraint ... 124
Rear seat head restraints ............. 124
Lumbar support............................ 125
Multicontour seat* ....................... 126
Drive - Dynamic seat* with
multicontour features................... 127
Seat heating* ............................... 128
Seat ventilation* .......................... 130Memory function ............................... 131
Storing positions into memory ..... 132
Recalling positions from memory. 132
Storing exterior rear view mirror
parking position ........................... 133
Lighting ............................................. 134
Exterior lamp switch .................... 134
Combination switch ..................... 138
Corner-illuminating front fog lamps*
(CLS with Bi-Xenon* headlamps) . 139
Hazard warning flasher ................ 140
Interior lighting in the front .......... 141
Interior lighting in the rear ........... 142
Door entry lamps ......................... 143
Trunk lamp ................................... 143
Instrument cluster ............................. 144
Instrument cluster illumination .... 144
Coolant temperature indicator ..... 145
Trip odometer .............................. 146
Tachometer.................................. 146
Outside temperature indicator ..... 146
ContentsUseful features .................................. 251
Storage compartments................. 251
Cup holders .................................. 255
Ashtrays ....................................... 257
Cigarette lighter ........................... 258
Power outlet ................................. 259
Floormats ..................................... 260
Telephone*................................... 260
Tele Aid ........................................ 261
Garage door opener* ................... 270
Operation......................................... 277
The first 1000 miles (1500 km) ......... 278
Driving instructions............................ 279
Drive sensibly – save fuel ............. 279
Drinking and driving ..................... 279
Pedals .......................................... 279
Power assistance ......................... 280
Brakes .......................................... 280
Driving off .................................... 282
Parking ......................................... 282
Tires ............................................. 282
Hydroplaning ................................ 283
Tire traction.................................. 284
Tire speed rating .......................... 284
Winter driving instructions ........... 285
Standing water ............................. 287
Passenger compartment .............. 287
Driving abroad.............................. 287
Control and operation of radio
transmitter ................................... 287
Catalytic converter ....................... 288
Emission control .......................... 289
Coolant temperature .................... 289At the gas station .............................. 290
Refueling ...................................... 290
Check regularly and before a
long trip ....................................... 291
Engine compartment ......................... 293
Hood ............................................ 293
Engine oil ..................................... 294
Transmission fluid level................ 297
Coolant level ................................ 297
Battery ......................................... 299
Windshield washer system and
headlamp cleaning system*......... 300
Tires and wheels................................ 301
Important guidelines .................... 301
Tire care and maintenance........... 302
Direction of rotation..................... 304
Loading the vehicle ...................... 304
Recommended tire inflation
pressure ....................................... 311
Checking tire inflation pressure ... 313
MOExtended system*................... 321
Tire labeling ................................. 322
Load identification ....................... 326
35 Getting started
Unlocking
Get in the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 98).
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.
Pull an outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
For more information, see “Factory
setting” (
page 107).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Get in the vehicle.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 103).
iThe electro-hydraulic brake system is
activated (
page 89).
iOpening a door causes the window on
that door to open slightly. They will re-
turn to the up position when the door is
closed.
iTo unlock the vehicle, the SmartKey
with KEYLESS-GO must be outside the
vehicle, no further than approximately
3 feet (1 meter) away from the door. Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO 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.
iThe electro-hydraulic brake system is
activated (
page 89).
iOpening a door causes the window on
that door to open slightly. They will re-
turn to the up position when the door is
closed.
40 Getting startedAdjustingSeat adjustment
The seat adjustment switches are located
on the front doors.
1Seat fore and aft adjustment
2Backrest tilt
3Head restraint height
4Seat height
5Seat cushion tilt
Switch on the ignition (
page 36).
or
Open the respective door.Seat fore and aft adjustment
Press the switch forward or backward
in the direction of arrow1.
Adjust a comfortable seating position
that still allows you to reach the accel-
erator/brake pedal safely. The position
should be as far to the rear as possible,
consistent with ability to properly oper-
ate controls.Seat cushion tilt
Press the switch up or down in the
direction of arrow5 until your upper
legs are lightly supported.
Backrest tilt
Press the switch forward or backward
in the direction of arrow2 until your
arms are slightly angled when holding
the steering wheel.
Seat height
Press the switch up or down in the
direction of arrow4.
iThe memory function (
page 131) lets
you store the settings for the seat posi-
tion together with the setting for the
steering wheel and the exterior rear
view mirrors.
!When moving the seat, make sure
there are no items in the footwell or be-
hind the seats. Otherwise you could
damage the seats.
58 Getting startedParking and lockingYou have now completed your first drive.
You have properly stopped and parked
your vehicle. End your drive as follows.Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle.Warning!
G
If you have selected the Comfort suspension
tuning (
page 238), the vehicle lowers
slightly when it is locked. You should there-
fore make sure that no one is standing near
the wheel arches or lying underneath the ve-
hicle when it is being locked. Otherwise,
personal injury could result.
Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury as a re-
sult of vehicle movement, before turning off
the engine and leaving the vehicle always:
Keep right foot on brake pedal.
Firmly depress parking brake pedal.
Move the gear selector lever to
positionP.
Slowly release brake pedal.
When parked on an incline, turn front
wheel towards the road curb.
Turn the SmartKey to starter switch
position0 and remove, or press
start/stop button (vehicles with
KEYLESS-GO*).
Take the SmartKey or the SmartKey with
KEYLESS-GO* and lock vehicle when
leaving.!If you have selected the Comfort sus-
pension tuning Comfort suspension
tuning (
page 238), the vehicle lowers
slightly when you lock it within approx-
imately 60 seconds after switching off
the engine. When parking, make sure
that your vehicle cannot come into con-
tact with other objects, such as a curb,
while lowering. Your vehicle could
otherwise be damaged.
59 Getting started
Parking and locking
Parking brake
1Release handle
2Parking brake pedal
Step firmly on parking brake pedal2.
When the engine is running, the warn-
ing lamp; (USA only) or 3
(Canada only) in the instrument cluster
will be illuminated.
Switching off headlamps
Turn the exterior lamp switch toM
(page 53).
For more information, see “Lighting”
(
page 134).
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. Children could release the
parking brake and/or move the gear selec-
tor lever from positionP, either of which
could result in an accident and/or serious
injury.
Warning!
G
Getting out of your vehicle with the gear
selector lever not fully engaged in positionP
is dangerous. Also, when parked on an in-
cline, positionP alone may not prevent your
vehicle from moving, possibly hitting people
or objects.
Always set the parking brake in addition to
shifting to positionP.
When parked on an incline, turn front wheels
towards the road curb.
84 Safety and SecurityDriving safety systemsIn this section you will find information on
the following driving safety systems:
ABS (A
ntilock B
rake S
ystem)
BAS (B
rake A
ssist S
ystem)
ESP
® (E
lectronic S
tability P
rogram)
Electro-hydraulic brake system
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of
approximately 5 mph (8 km/h) indepen-
dent of road surface conditions.
On slippery road surfaces, the ABS will
respond even with light brake pressure.
Warning!
G
The following factors increase the risk of
accidents:
Excessive speed, especially in turns
Wet and slippery road surfaces
Following another vehicle too closely
The ABS, BAS, ESP
® and electro-hydraulic
brake system cannot reduce this risk.
Always adjust your driving style to the pre-
vailing road and weather conditions.
iIn winter operation, the maximum
effectiveness of the ABS, the BAS, the
ESP
® and electro-hydraulic brake sys-
tem is only achieved with winter tires
(
page 336) or snow chains as re-
quired.
Warning!
G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.
180 Controls in detailAutomatic transmissionDriving tips
Accelerator position
Your driving style influences the
transmission’s shifting behavior:
Less throttle Earlier upshifting
More throttle Later upshifting
Kickdown
Use kickdown when you want maximum
acceleration.
Press the accelerator past the point of
resistance.
The transmission shifts into a lower
gear.
Ease on the accelerator when you have
reached the desired speed.
The transmission shifts up again.
Stopping
When you stop briefly, e.g. at traffic lights:
Leave the transmission in gear.
Hold the vehicle with the brake.
When you stop longer with the engine
idling and/or on a hill:
Set the parking brake.
Move the gear selector lever to
positionP.Maneuvering
When you maneuver in tight areas,
e.g. when pulling into a parking space:
Control the vehicle speed by gradually
releasing the brakes.
Accelerate gently.
Never abruptly step on the accelerator.
Working on the vehicleWarning!
G
When working on the vehicle, set the
parking brake and move gear selector lever
to positionP. Otherwise the vehicle could
roll away.