Page 4 of 442

ContentsSafety and Security...........................  55
Occupant safety...................................  56
Airbags ...........................................  57
Seat belts .......................................  62
Children in the vehicle ....................  65
Blocking of rear door window 
operation ........................................  72
Panic alarm ..........................................  73
Activating .......................................  73
Deactivating ...................................  73
Driving safety systems .........................  74
ABS ................................................  74
BAS ................................................  76
ESP .................................................  76
The SBC brake system ...................  79
Four wheel electronic traction 
system (4MATIC) with the ESP .......  82
Anti-theft systems................................  83
Immobilizer.....................................  83
Anti-theft alarm system ..................  84
Tow-away alarm .............................  85
Controls in detail...............................  87
Locking and unlocking .........................  88
SmartKey .......................................  88
SmartKey with KEYLESS-GO* ........  91
Opening the doors from the inside .  97
Opening the trunk ..........................  97
Closing the trunk............................  99
Trunk lid opening / closing 
system* .........................................  99
Trunk lid emergency release ........  104
Separately locking the trunk ........  105
Separately unlocking the trunk ....  106
Automatic central locking ............  106
Locking and unlocking from 
the inside .....................................  107
Seats .................................................  108
Easy-entry / exit feature* .............  108
Removing and installing front 
seat head restraints .....................  109
Rear seat head restraints .............  110
Multicontour seat* .......................  111
Drive - Dynamic seat* ...................  112
Heated seats* ..............................  113
Seat ventilation* ..........................  114Memory function ...............................  116
Storing positions in memory ........  117
Recalling positions from 
memory........................................  117
Storing exterior rear view 
mirror parking position ................  118
Lighting .............................................  119
Exterior lamp switch ....................  119
Combination switch .....................  123
Hazard warning flasher ................  123
Interior lighting ............................  124
Door entry lamps .........................  125
Trunk lamp ...................................  125
Instrument cluster .............................  126
Instrument cluster illumination ....  126
Coolant temperature gauge .........  127
Trip odometer ..............................  127
Tachometer ..................................  128
Outside temperature indicator .....  128 
     
        
        Page 28 of 442
28 At a glanceDoor control panel
Door control panel
Item
Page
1
Door handle
97
2
Seat adjustment
35
3
Memory function (for stor-
ing seat, exterior mirror 
and steering wheel set-
tings)
116
4
Exterior rear view mirror 
adjustment
38
5
Switches for opening/ 
closing front and rear side 
windows, rear window 
override switch 
197
6
Remote trunk lid release 
switch, Trunk lid open-
ing/closing system*
99 
     
        
        Page 35 of 442

35 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
Turn the SmartKey in the starter switch 
to position1 or2 (
page 31)
or
Press the KEYLESS GO* start/stop 
button once or twice (
page 33).
or
Open the driver’s or passenger door.Seat fore and aft adjustment
Press the switch forward or backward 
in the direction of arrow4.
Adjust a comfortable seating position 
that still allows you to reach the 
accelerator / brake pedal safely. The 
position should be as far to the rear as 
possible, consistent with ability to 
properly operate controls.
A child’s risk of serious or fatal injuries is 
significantly increased if the child restraints 
are not properly secured in the vehicle and 
the child is not properly secured in the child 
restraint.
iWhen moving the seat, be sure there 
are no items in the footwell or behind 
the seats. Otherwise you could damage 
the seats.
The memory function (
page 116) lets 
you store the setting for the seat posi-
tion together with the setting for the 
steering wheel and the exterior rear 
view mirrors. 
     
        
        Page 37 of 442

37 Getting started
Adjusting
Steering wheel Steering wheel adjustment
The stalk for steering wheel adjustment is 
located on the steering column (lower left).
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Turn the SmartKey in the starter switch 
to position1 or2.
or
Press the KEYLESS GO* start/stop 
button once or twice.
or
Open the driver’s door.Adjusting steering column in or out
Move stalk forward or back in the direc-
tion of arrow1 until a comfortable 
steering wheel position is reached with 
your arms slightly bent at the elbow.
Adjusting steering column up or down
Move stalk up or down in the direction 
of arrow2.
Make sure your legs can move freely 
and that all the displays (incl. malfunc-
tion and indicator lamps) on the instru-
ment cluster are clearly visible.
For more information, see “Heated steer-
ing wheel*”(
page 248). 
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of 
the vehicle.
When leaving the vehicle, always remove the 
SmartKey from the starter switch, take the 
SmartKey with KEYLESS-GO* with you and 
lock your vehicle.
The steering wheel adjustment feature can 
also be operated with the driver’s door 
open. Do not leave children unattended in 
the vehicle, or with access to an unlocked 
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious 
personal injury.
iThe memory function (
page 116) lets 
you store the setting for the seat posi-
tion together with the setting for the 
steering wheel and the exterior rear 
view mirrors.  
     
        
        Page 39 of 442
39 Getting started
Adjusting
Make sure the ignition is switched on.
All the lamps in the instrument cluster 
come on.
Press button3 for the left mirror or 
button1 for the right mirror.
Push adjustment button2 up, down, 
left or right according to the setting de-
sired.
For more information, see “Activating exte-
rior rear view mirror parking position” 
(
page 169).!If an exterior rear view mirror was forc-
ibly pushed forward (hit from the rear) 
or forcibly pushed rearward (hit from 
the front), reposition it by applying firm 
pressure until it snaps into place. The 
mirror housing is now properly posi-
tioned and you can adjust the mirror 
normally.iThe memory function (
page 116) lets 
you store the setting for the seat posi-
tion together with the setting for the 
steering wheel and the exterior rear 
view mirrors. 
At low ambient temperatures, the mir-
rors will be heated automatically. 
     
        
        Page 87 of 442
87 Controls in detail
Locking and unlocking
Seats
Memory function
Lighting
Instrument cluster
Control system
Automatic transmission
Good visibility
Climate control
Automatic climate control*
Power windows
Sliding / pop-up roof*
Panorama sliding / pop-up roof*
Driving systems
Loading
Useful features 
     
        
        Page 108 of 442

108 Controls in detailSeats
SeatsInformation on seat adjustment can be 
found in the “Getting started” section 
(page 35).
Easy-entry / exit feature*
With the easy-entry / exit feature activat-
ed, the steering wheel tilts upwards and 
the driver’s seat moves to the rear.
This allows easier entry into and exit from 
the vehicle when the driver’s door is 
opened. However, the engine must be 
turned off.
When the SmartKey is inserted in the start-
er switch or you have pressed the Key-
less-Go* start/stop button and the 
driver’s door is closed, the steering wheel 
and the driver’s seat return to their last set 
positions.You can activate the following functions:
Steering column:
Only the steering column is adjusted.
Steering column and seat:
The steering column and the seat are 
adjusted.
The easy-entry / exit feature can be 
switched on or off in the convenience sub-
menu of the control system (
page 150).
Warning!
G
You must ensure that no one can become 
trapped or injured by the moving steering 
wheel and driver’s seat when the 
easy-entry / exit feature is activated, the 
driver’s door is being opened and the engine 
is turned off or the SmartKey removed from 
the starter switch.
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.
iTo cancel seat / steering wheel move-
ment, do one of the following:
Press seat adjustment switch 
(page 28).
Move steering column stalk 
(page 37).
Press the memory switch 
(page 28). 
     
        
        Page 112 of 442
112 Controls in detailSeatsDrive - Dynamic seat*
The Drive - Dynamic seat automatically ad-
justs the lateral support provided by the 
backrest to your driving style.
1Backrest center
2Backrest bottom
3Seat cushion depth
4Activate drive dynamic function
5Backrest side bolsters
6Massage functionThe drive - Dynamic seat electronically con-
trols the air pressure in the air chambers of 
the backrest side bolsters. This function 
improves driving comfort and pleasure.
Activating
Press button4.
The indicator lamp in the button comes 
on for five seconds and the fallowing 
display appears in the multi-function 
display for about five seconds.Deactivating
Press button4 again.
The indicator lamp in the button goes 
out.iYou can adjust the characteristics of 
the Drive - Dynamic seat using the con-
trol system (
page 153).
iWhen the engine is turned off, the last 
cushion setting is retained in memory. 
The cushion is automatically adjusted 
to this setting when the engine is re-
started.