Page 5 of 376

Contents
Retractable hardtop........................... 159
Opening and closing the retractable
hardtop ........................................ 159
Driving systems ................................. 168
Cruise control .............................. 168
Distronic* .................................... 171
Active Body Control (ABC) ........... 183
Parktronic system* ...................... 186
Useful features .................................. 190
Interior storage spaces ................ 190
Ashtray......................................... 196
Cigarette lighter ........................... 197
Heated steering wheel* (Canada
only–model SL 500) ..................... 197
Easy-Pack load assist in the trunk 198
Electrical outlet ............................ 199
Telephone* .................................. 199
Tele Aid ........................................ 200
Garage door opener ..................... 208Operation......................................... 213
The first 1000 miles (1500 km) ......... 214
Driving instructions............................ 215
Drive sensibly – save fuel............. 215
Drinking and driving ..................... 215Pedals ........................................... 215
Power assistance .......................... 216
Brakes........................................... 216
Driving off ..................................... 218
Parking.......................................... 218
Tires .............................................. 219
Hydroplaning................................. 219
Tire traction .................................. 220
Tire speed rating ........................... 220
Winter driving instructions ............ 221
Standing water.............................. 222
Passenger compartment ............... 222
Driving abroad .............................. 222
Control and operation of radio trans-
mitters .......................................... 222
Catalytic converter........................ 223
Emission control ........................... 224
Coolant temperature..................... 224
At the gas station ............................... 225
Check regularly and before a
long trip ........................................ 226Engine compartment .......................... 227
Hood ............................................. 227
Engine oil ...................................... 228
Transmission fluid level ................ 230
Oil level in the ABC system ........... 230
Coolant ......................................... 230
Battery .......................................... 232
Windshield washer system and
headlamp cleaning system ........... 233
Tires and wheels ................................ 234
Important guidelines ..................... 234
Life of tires ................................... 235
Direction of rotation ..................... 235
Checking tire inflation pressure .... 235
Rotating wheels ............................ 238
Winter driving ..................................... 239
Winter tires ................................... 239
Block heater (Canada only) ........... 240
Snow chains ................................. 240
Maintenance ...................................... 241
Clearing the service indicator ....... 241
Service term exceeded ................. 241
Calling up the service indicator .... 242
Resetting the service indicator ..... 242
Vehicle care ....................................... 243
Cleaning and care of the vehicle ... 243
Page 13 of 376

13 Introduction
Symbols
Symbols
The following symbols are found in this
Operator’s Manual:
* Optional equipment is identified
with an asterisk. Since standard
equipment varies between models,
the descriptions and illustrations in
this manual may differ slightly from
the actual equipment of your vehi-
cle.
This symbol points to instructions for
you to follow.
A number of these symbols appearing
in succession indicates a multiple-step
procedure.
Page This symbol tells you where to
look for further information on a
topic.
This continuation symbol marks
an interrupted procedure which
will be continued on the next
page.
-> In the glossary of technical
terms, this symbol is used to
cross-reference term defini-
tions.
Display
Words appearing in the multi-
function display are printed in
the type shown here.
Warning!
G
Warning notices draw your attention to haz-
ards that may endanger your health or life,
or the health or life of others.!Highlights hazards that may result in
damage to your vehicle.iHelpful hints or further information you
may find useful.
Page 23 of 376
23 At a glance
Center console
Center console
Upper part
Item
Page
1
Central locking switch
92
2
Hazard warning flasher
on/off switch
105
3
Central unlocking switch
92
4
Center and side air vent
adjustment
147
5
COMAND system, see
separate operating in-
structions
113
6
Automatic climate control
149
7
Right cup holder
190
8
KEYLESS-GO* start/stop
button
30
9
Ashtray
Cigarette lighter
196
197
10
Left cup holder
190
Page 24 of 376
24 At a glanceCenter consoleLower part
Item
Page
1
Parking assist (Parktronic
system)* deactivation
switch
186
2
Active Body Control (ABC)
switch
183
3
Tow-away alarm switch
77
4
Hardtop open/close con-
trol with buttons for roll bar
159
61
5
Exterior rear view mirror
adjustment
35
Item
Page
6
Vehicle level control switch
184
7
ESP control switch
71
8
Thumbwheel for setting
distance for Distronic*
179
9
Distance warning func-
tion* on/off switch
179
10
Program mode selector for
automatic transmission
141
11
Selector lever for
automatic transmission
137
Page 30 of 376

30 Getting startedUnlockingUnlocking with KEYLESS-GO*
The functions of the KEYLESS-GO card are
nearly identical to those of the key, except
that it cannot be used to open the retract-
able hardtop. When using the key and the
card at the same time, the key overrules
the card.
Grasp the door handle.
The turn signal lamps blink once. The
locking knobs on the doors move up.Pressing the KEYLESS-GO start/stop but-
ton on the selector lever corresponds to
turning the key to the various starter
switch positions.
1KEYLESS-GO start/stop button
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have the status0 (as with key
removed).
Make sure the gear selector lever is set
toP.
Do not depress the brake pedal.
iThe KEYLESS-GO card must be outside
the vehicle to unlock it.
Warning!
G
When leaving the vehicle, always take the
key and the KEYLESS-GO card 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 SBC brake system is activated.
Page 31 of 376
31 Getting started
Unlocking
Position 1
Press the KEYLESS-GO start/stop but-
ton once.
Power supply for some electrical con-
sumers, such as seat adjustment.Ignition (or Position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
Power supply for all electrical consum-
ers. All the lights in the instrument
cluster light up.
More information can be found in the
“Controls in detail” section (
page 84).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see Starting with KEYLESS-GO
(
page 40).
iIf you now press the KEYLESS-GO
start/stop button twice, the power
supply is again switched off.
iIf you now press the KEYLESS-GO
start/stop button once, the power sup-
ply is again switched off.
Page 33 of 376

33 Getting started
Adjusting
The seat adjustment switch is located in
the door.
1Seat fore and aft adjustment
2Seat height
3Seat cushion tilt
4Backrest tilt
5Seat cushion depth
6Head restraint height
Switch on the ignition by turning the
key in the starter switch to position2
or pressing the KEYLESS GO*
start/stop button twice.Seat fore and aft adjustment
Press the switch forward or backward
in the direction of arrow1.
Seat height
Press the switch up or down in the di-
rection of arrow2.
Seat cushion tilt
Press the switch up or down in the di-
rection of arrow3 until your upper legs
are lightly supported.
Backrest tilt
Press the switch forward or back in the
direction of arrow4.Seat cushion depth
Press the switch forward or back in the
direction of arrow5.
Head restraint height
Press the switch up or down in the di-
rection of arrow6.
!When moving the seat, be sure that
nothing is in the auxiliary cup holder
and that there are no items in the foot-
well or behind the seats. Otherwise the
seats could be damaged.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint to support the back of
the head approximately at ear level.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Page 40 of 376
40 Getting startedDrivingStarting with the SmartKey
Turn the key in the starter switch to
position3 and hold until the engine
starts (
page 29).
Depress the brake pedal.
The selector lever lock is released.
For information on turning off the engine
with the key, see “Turning off engine with
the key” (
page 48).Starting with KEYLESS-GO*
You can start your vehicle without a key
using the KEYLESS-GO start/stop button
on the gear selector lever.
1KEYLESS-GO start/stop button
Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
The selector lever lock is released.
Press the KEYLESS-GO start/stop
button1 once.
The engine starts automatically.
For information on turning off the engine
with KEYLESS-GO, see “Turning off engine
with KEYLESS-GO*” (
page 49).
iYou can also use the “touch-start”
function. Turn the key to position3 and
release it again immediately. The en-
gine then starts automatically.