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
41 Getting started
Adjusting
Seat adjustment
The seat adjustment switches are located
on the front doors.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat fore and aft adjustment
5Backrest tilt
Switch on the ignition (
page 36).
or
Open the respective door.Seat fore and aft adjustment
Press the switch forward or backward
in direction of arrow4.
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 direc-
tion of arrow3 until your upper legs
are lightly supported.
Backrest tilt
Press the switch forward or backward
in direction of arrow5 until your arms
are slightly angled when holding the
steering wheel.
Seat height
Press the switch up or down in direc-
tion of arrow2.
iThe memory function (
page 138) lets
you store the settings for the seat posi-
tion together with the settings 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.
138 Controls in detailMemory functionPrior to operating the vehicle, the driver
should check and adjust the seat height,
seat position fore and aft, and seat back-
rest angle if necessary, to ensure adequate
control, reach and comfort. The head re-
straint should also be adjusted for proper
height. See also the section on air bags
(page 67) for more information on prop-
er seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, operation
and comfort. Both the interior and exterior
rear view mirrors should be adjusted for
adequate rear vision.
Fasten seat belts. Infants and small chil-
dren should be seated in a properly se-
cured restraint system that complies with
U.S. Federal Motor Vehicle Safety Stan-
dards 213 and 225 and Canadian Motor
Vehicle Safety Standards 213 and 210.2.The following settings are stored when us-
ing the buttons on the driver’s door:
Driver’s seat, backrest, head restraint
position and settings for multicontour
seat
Steering wheel position
Exterior rear view mirror positions
The following settings are stored when us-
ing the buttons on the front passenger
door:
Front passenger seat, backrest, head
restraint position and settings for mul-
ticontour seat
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.
139 Controls in detail
Memory function
The memory button and memory position
buttons are located on the door.
MMemory button
1, 2, 3Memory position button
Switch on the ignition (
page 36).
or
Open the respective door.
Storing positions into memory
Adjust the seats, steering wheel and
exterior rear view mirrors to the de-
sired position (
page 40).
Press memory buttonM.
Release memory buttonM and press
memory position button 1, 2 or 3 with-
in 3 seconds.
All the settings are stored to the select-
ed position.
Recalling positions from memory
Press and hold memory position
button1, 2 or3 until the seat, steering
wheel and exterior rear view mirrors
have completely moved to the stored
positions.!Do not operate the power seats using
the memory button if the seat backrest
is in an excessively reclined position.
Doing so could cause damage to front
or rear seats.iReleasing the memory position button
stops movement to the stored posi-
tions immediately.
140 Controls in detailMemory functionStoring exterior rear view mirror park-ing position
For easier parking, you can adjust the pas-
senger-side exterior rear view mirror so
that you can see the right rear wheel as
soon as you engage reverse gearR.
For information on activating the parking
position, see “Activating exterior rear view
mirror parking position” (
page 198).
1Passenger side, exterior rear view mir-
ror
2Adjustment button
Stop the vehicle.
Switch on the ignition (
page 36).
Press button1.
The passenger-side exterior rear view
mirror is selected.
Adjust the exterior rear view mirror
with button2 so that you see the rear
wheel and the road curb.
Press memory button M.
Within 3 seconds, press bottom of ad-
justment button2.
The parking position is stored if the
mirror does not move.iIf the mirror does move, repeat the
above steps. After the setting is stored,
you can move the mirror again.
148 Controls in detailLightingManual control
Front interior lighting
Press front interior lighting switch4.
The front interior lighting switches on.
Press front interior lighting switch4
again.
The front interior lighting switches off.
Rear interior lighting
Press rear interior lighting switch2.
The rear interior lighting switches on.
Press rear interior lighting switch2
again.
The rear interior lighting switches off.Front reading lamps
The front reading lamps are located in the
lower edge of the interior rear view mirror.
Press front reading lamp
switch1or5 to switch on the de-
sired front reading lamp.
Press front reading lamp
switch1or5 again to switch off the
respective front reading lamp.
Door entry lamps
For better orientation in the dark, the cor-
responding door entry lamps will switch on
in the darkness when you open a door and
the automatic control is activated.
The door entry lamps will switch off when
the corresponding door is closed.
iThe setting selected for the interior
lighting is used for the trunk lighting as
well.
If the trunk remains open, the trunk
lighting switches off automatically after
approximately 10 minutes.
iIf you turn the SmartKey in the starter
switch to position0 and switch off the
headlamps, the door entry lamps will
remain lit for approximately 5 minutes.
165 Controls in detail
Control system
The table below shows what settings can
be changed within the various menus. De-
tailed instructions on making individual
settings can be found on the following pag-
es.INSTRUMENT CLUSTER
TIME/DATE
LIGHTING
VEHICLE
CONVENIENCE
DYNAMIC SEAT*
Select speedometer dis-
play mode
Synchronizing the
time
Set daytime running
lamp mode
(USA only)
Set automatic lock-
ing
Activate easy-en-
try/exit feature
Set level for
dynamic seat, driver
Select language
Set time (hours)
Set locator lighting
Set parking position
for exterior rear
view mirror
Set level for
dynamic seat, pas-
senger
Select display (speed dis-
play or outside tempera-
ture) for status line
Set time (minutes)
Ambient lighting
Select display (speed dis-
play or outside tempera-
ture) for basic display
Set date (month)
Setting headlamps
delayed shut-off
Set date (day)
Setting interior
lighting delayed
shut-off
Set date (year)
175 Controls in detail
Control system
Convenience submenu
Access the
Convenience
submenu via the
Settings
menu. Use the
Convenience
sub-
menu to change the settings for a number
of convenience features. The following
functions are available:Activating easy-entry/exit feature
Use this function to activate and deacti-
vate the easy-entry/exit feature
(
page 43).
Move the selection marker with
buttonæ orç to
the
Convenience
submenu.
Function
Page
Activate easy-entry/exit feature
175
Set parking position for exterior
rear view mirror
176
Warning!
G
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To stop steering wheel adjustment, do one
of the following:
Move steering column stalk
(page 43).
Press one of the memory position but-
tons or the memory button M
(page 139).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.