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 30 of 498
29 At a glance
Overhead control panel
Overhead control panel
Item
Page
1
Rear interior lighting on/off
141
2
Automatic interior lighting
141
3
Front interior lighting on/off
141
4
Temperature sensor
5
Right reading lamp on/off
141
6
Tilt/sliding sunroof
219
7
Tele Aid (emergency call
system) button
261
8
Rear view mirror
191
9
Right reading lamp
141
Item
Page
a
Hands-free microphones for
Tele Aid (emergency call
system), telephone*, and
voice control system* (see
separate operating instruc-
tions)
b
Garage door opener
270
c
Left reading lamp
141
d
Tow-away alarm button (if
equipped)
95
e
Ambient lighting
166
f
Interior lighting
g
Left reading lamp on/off
141
Page 35 of 498

34 Getting startedThe “Getting started” section provides an
overview of the vehicle’s most basic func-
tions.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will provide you with further
information. The corresponding page refer-
ences are located at the end of each seg-
ment.Unlocking
Unlocking with the SmartKeySmartKey with remote control1‹Lock button
2ŠUnlock button for trunk
3ŒUnlock button
4ÂPanic button (
page 83)
Press unlock buttonŒ on the
SmartKey.
All turn signal lamps flash once.
An acoustic signal sounds once.
For more information, see “Factory
setting” (
page 100).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Page 36 of 498

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.
Page 63 of 498
62 Getting startedParking and lockingLocking with the SmartKey
After exiting the vehicle, press lock
button‹ on the SmartKey
(page 34).
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
For more information, see “Factory
setting” (
page 100).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 98).Locking with KEYLESS-GO*
1Lock button
After exiting the vehicle, press lock
button1 at the outside door handle or
on the trunk lid.
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
For more information, see “Factory
setting” (
page 107).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 103).
Page 64 of 498
63 Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems
Page 84 of 498

83 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 SmartKey or the SmartKey with
KEYLESS-GO* in starter switch.
or
Press the KEYLESS-GO* start/stop
button (
page 37).
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 94 of 498

93 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.
The immobilizer is activated.
With KEYLESS-GO*
Press the KEYLESS-GO start/stop but-
ton once.
The engine is turned off.
Open the driver’s door.Deactivating
With the SmartKey
Turn the SmartKey in the starter switch
to position2 (
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.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
(only vehicles with tow-away alarm)
the vehicle is opened with the mechan-
ical key
someone opens a door from the inside
someone opens the trunk with the
emergency release button
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).