Page 5 of 498

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
Page 126 of 498
125 Controls in detailSeats
Switch on the ignition (
page 36).
Press the symbol-side on rocker
switch1 to release the head re-
straints.
The head restraints will fold backward.Placing head restraints upright
Pull the head restraint forward until it
locks into position.
Lumbar support
The curvature of the driver's seat can be
adjusted to help enhance lower back sup-
port and seating comfort.
1Adjustment lever
Move adjustment lever1 in the direc-
tion of arrows until you have reached a
comfortable seating position.
Warning!
G
For safety reasons, always drive with the
rear head restraints in the upright position
when the rear seats are occupied.
Keep the area around head restraints clear
of articles (e.g. clothing) to not obstruct the
folding operation of the head restraints.
!Make sure the head restraints engage
when placing them upright. Otherwise
their protective function cannot be as-
sured.
Page 128 of 498

127 Controls in detailSeats
Drive - Dynamic seat* with multicon-tour features
The Drive - Dynamic seat automatically ad-
justs the lateral support provided by the
backrest to your driving style.
The Drive - Dynamic seat electronically
controls the air pressure in the air cham-
bers of the backrest side bolsters. This
function improves driving comfort and
pleasure.
In addition, the Drive-Dynamic seat has a
movable seat cushion and inflatable air
cushions built into the backrest to provide
additional lumbar and side support.
The seat cushion movement, backrest
cushion height and curvature can be con-
tinuously varied with switches right side of
the seat on the driver side, or the left side
of the seat on the passenger side after
turning the SmartKey in the starter switch
to position2 or pressing the KEYLESS-GO*
start/stop button twice.1Activate drive dynamic function
2Backrest side bolsters
3Massage function
4Backrest center
5Backrest bottom
6Seat cushion depth
Switch on the ignition (
page 36).Multicontour features
Seat cushion depth
Adjust the seat cushion depth to the
length of your upper leg using
switch6.
Backrest contour
Move the backrest support to the bot-
tom by using button5 or to the center
by using button4.
Adjust the contour of the backrest to
the desired position using æ or
ç.
Backrest side bolsters
Adjust the side bolsters so that they
provide good lateral support using
switch2.
Page 488 of 498

487 Index
L
Labels 446
Lamp bulbs, exterior 411
Lamps, exterior
Front 412
Messages in display 387
Rear 412
Replacing bulbs for rear 416
Lamps, indicator and warning
ABS 352
Air bag Off 69
Battery (SmartKey with
KEYLESS-GO*) 107
Battery (SmartKey) 101
Brakes 354
Coolant 357
DTR* 229, 235
Electro-hydraulic brake system 89
Engine diagnostics 355
ESP
®
353
Fog lamps 137
Front passenger front air bag off 78
Fuel reserve 358
Seat belts 358
SRS 65Language, Setting 160
LATCH child seat anchors 81
Layout of poly-V-belt drive 447
Leather upholstery, Cleaning and
care of 350
License plate lamps 412
Messages in display 388
Replacing bulbs 416
Light alloy wheels, cleaning 348
Lighter see Cigarette lighter 258
Lighting 134
Automatic headlamp mode 135
Combination switch 138
Daytime running lamp mode 136
Door entry lamps 143
Exterior lamp switch 134
Fog lamps 137
Front fog lamps 137
High beams 138
Instrument cluster illumination 144
Interior 141
Locator lighting 136
Low beam 134
Manual headlamp mode 135
Night security illumination 136Parking lamps 134
Rear fog lamp 138
Settings (control system) 164
Trunk lamp 143
Limp-Home Mode 190
Loading 246
Instructions 247
Loading the vehicle 304
Locator lighting 136, 165
Lock button 62, 218
Locking 58, 98
Locking knob 474
Loss of SmartKey with
KEYLESS-GO* 111
Loss of SmartKeys 103
Low beam headlamps 53
Replacing bulbs 414
Switching on 53
Lumbar support 125