Page 5 of 521

ContentsSafety and Security........................... 65
Occupant safety................................... 66
Air bags .......................................... 67
Seat belts ....................................... 73
Active head restraints .................... 77
Children in the vehicle .................... 78
Blocking of rear door window
operation ........................................ 89
Panic alarm .......................................... 91
Activating ....................................... 91
Deactivating ................................... 91
Driving safety systems ......................... 92
ABS ................................................ 92
BAS ................................................ 94
ESP
®.............................................. 94
Electrohydraulic brake system ....... 97
Four wheel electronic traction
system (4MATIC) with the ESP
®... 100
Anti-theft systems.............................. 101
Immobilizer................................... 101
Anti-theft alarm system ................ 101
Tow-away alarm ........................... 103
Controls in detail............................. 105
Locking and unlocking ....................... 106
SmartKey ..................................... 106
SmartKey with KEYLESS-GO* ...... 111
Opening the doors
from the inside ............................. 119
Opening the trunk ........................ 120
Closing the trunk.......................... 121
Trunk emergency release ............. 127
Valet locking ................................ 128
Automatic central locking ............ 129
Locking and unlocking
from the inside ............................. 129
Seats ................................................ 131
Front seat active head restraints . 131
Rear seat head restraints ............. 131
Lumbar support............................ 133
Drive - Dynamic seat* with
multicontour features................... 134
Seat heating* ............................... 135
Seat ventilation* .......................... 136Memory function ............................... 138
Storing positions into memory ..... 139
Recalling positions from memory . 139
Storing exterior rear view mirror
parking position ........................... 140
Lighting ............................................. 141
Exterior lamp switch .................... 141
Combination switch ..................... 145
Hazard warning flasher ................ 146
Interior lighting in the front .......... 147
Door entry lamps ......................... 148
Interior lighting in the rear ........... 149
Trunk lamp ................................... 149
Instrument cluster ............................. 150
Instrument cluster illumination .... 150
Coolant temperature indicator ..... 151
Trip odometer .............................. 151
Tachometer .................................. 152
Outside temperature indicator ..... 152
Page 92 of 521

91 Safety and Security
Panic alarm
Panic alarm
An audible alarm and flashing exterior
lamps will operate for approximately
2½ minutes.
1Â button
Activating
Press and hold button1 for at least
1 second.
Deactivating
Press button1 again.
or
Insert the SmartKey or the SmartKey
with KEYLESS-GO* in the starter
switch.
or
Press the KEYLESS-GO* start/stop
button.
The SmartKey with KEYLESS-GO must
be inside the vehicle.
iUSA only:
This device complies with Part 15 of
the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful
interference, and
(2) this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.iCanada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject
to the following two conditions:
(1) This device may not cause interfer-
ence, and
(2) this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.
Page 102 of 521
101 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey
Remove the SmartKey from the starter
switch.
With KEYLESS-GO*
Turn off the engine by means of the
start/stop button on the gear selector
lever.
Open the driver’s door.Deactivating
With the SmartKey
Switch on the ignition (
page 36).
With KEYLESS-GO*
Start the engine by means of the
start/stop button on the gear selector
lever.
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:
a door
the trunk
the hood
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed.
iIn case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).
Page 513 of 521

512 IndexOverspeed range, engine 496
Oxidation catalyst 312
P
Paintwork, Cleaning 365
Panic alarm 91
Panorama roof with power tilt/sliding
panel* 239
Messages in display 417
Opening/closing 240
Opening/closing in an
emergency 429
Stopping 241
Synchronizing 242
Panorama roof with tilt/sliding panel
Cleaning 370
Parcel net
Front passenger footwell 278
Parking 60, 306
On hills 60, 306
Over things that burn, Potential
consequences 60, 306
Parking brake 53, 61
Message in display 401
Parking lamps
Messages in display 413
Replacing bulbs 413Parking position
Exterior rear view mirrors 140, 176,
198
Gear position 50, 185
Parktronic* 496
Activating/deactivating 266
Cleaning system sensors 368
Malfunctioning 267
Minimum distance 265
Range 264
System sensors 368
Warning indicators 23, 265
Parts service 466
PASS AIR BAG OFF indicator lamp see
Front passenger front air bag off indica-
tor lamp
Passenger compartment
Interior lighting 147
Interior rear view mirror 45
Main fuse box 462
Parcel net in front passenger
footwell 278
Passenger safety see Occupant safety
Pedals 303
Phone see Telephone*
Plastic parts, cleaning 370Pliers, universal (vehicle tool kit) 424
Poly-V-belt drive 496
Layout 469
Positions (Memory function) see Seats
Power assistance 304
Power outlet 283
Power seat see Seats
Power tilt/sliding sunroof* 236
Messages in display 417
Opening/closing 236
Opening/closing in an
emergency 429
Stopping 238
Synchronizing 238
Power tilt/sliding sunroof* or panorama
roof with power tilt/sliding panel*
Emergency operations 429
Power train 497
Power washer 365
Power windows 231
Cleaning 369
Operating 231
Rear door window, Blocking
operation 89
Synchronizing 233
Practical hints 374