Page 40 of 354
37 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 5Grip molding
6Lock
7Recessed handleTo close the tailgate, pull down on inside grip (8) and 
press down on outside grip molding (5) until the tailgate 
latch engages. It is not necessary to slam the tailgate 
closed, a power-assisted mechanism will draw the 
tailgate quietly and automatically. 
     
        
        Page 41 of 354

38 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Important!
In case of danger, the closed tailgate can be opened with 
the inside or outside handle. 
Only drive with the tailgate closed as otherwise exhaust 
fumes may enter the vehicle interior.Notes:
In case of a malfunction in the central locking system 
the tailgate can be locked and unlocked individually. 
To unlock, turn mechanical key in lock to position 1, or 
push lock button to position 1, see page 36.
To lock, turn mechanical key in lock to position 2, or 
push lock button to position 2, see page 36. 
The rear compartment lamp will be switched off by the 
contact switch only if the tailgate is fully closed. 
When opening the tailgate completely, always make sure 
that there is sufficient overhead clearance.
When unlocking the tailgate with the mechanical key, 
the exterior lamps will flash and the alarm will sound.
To cancel the alarm, insert the electronic key in the 
steering lock or press buttonŒ or‹ on the 
electronic key.
If the fuel filler flap cannot be opened, see page 308.
Wa r n i n g !
To prevent possible personal injury, always keep 
hands and fingers away from the tailgate opening 
when closing the tailgate. Be especially careful 
when small children are around.To prevent personal injury, never activate the 
closing assist mechanism by tampering with the 
tailgate latch.In case the closing procedure causes potential 
danger, the closing procedure can be immediately 
halted by pulling the outside recessed handle. 
     
        
        Page 42 of 354
39 Antitheft alarm system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Antitheft alarm system
1Indicator lamp in switch located in center consoleThe antitheft alarm is automatically armed or disarmed 
with the remote control by locking or unlocking the 
vehicle.
The antitheft alarm is armed within approximately 
15 s e c o n d s  a f t e r  l o c k i n g  t h e  v e h i c l e .
A blinking lamp (1) indicates that the alarm is armed.
Operation:
Once the alarm system has been armed, the exterior 
vehicle lamps will flash and an alarm will sound when 
someone:
•opens a door,
•opens the tailgate,
•opens the hood,
•attempts to raise the vehicle.
1 
     
        
        Page 43 of 354
40 Antitheft alarm system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
The alarm will last approximately 3 minutes in form of 
flashing exterior lamps. At the same time an alarm will 
sound for 30 seconds. The alarm will stay on even if the 
activating element (a door, for example) is immediately 
closed. If the alarm stays on for more than 20 seconds, 
an emergency call is initiated automatically. See Tele 
Aid on page 188.Notes:
When you unlock the driver’s door with the mechanical 
key, the exterior lamps will flash and the alarm will 
sound.
To cancel the alarm, insert the electronic key in the 
steering lock or press buttonŒ or‹ on the 
electronic key. 
     
        
        Page 44 of 354

41 Tow-away alarm
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Tow-away alarm
The switch is located in the center console.
1Press to switch off
2Indicator lamp
Once the alarm system has been armed, the exterior 
vehicle lamps will flash and an alarm will sound when 
someone attempts to raise the vehicle.The alarm will last approximately 3 minutes in form of 
flashing exterior lamps. At the same time an alarm will 
sound for 30 seconds. The alarm will stay on even if the 
vehicle is immediately lowered. To cancel the alarm, 
insert the electronic key in the steering lock or press 
buttonŒ or‹ on the electronic key.
If the alarm stays on for more than 20 seconds, an 
emergency call is initiated automatically. See Tele Aid 
on page 188.
To prevent triggering the tow-away alarm feature, switch 
off t he tow-away alarm b efor e towin g the  vehic le,  or 
when parking on a surface subject to movement, such 
as a ferry or auto train.
To do so, turn electronic key in steering lock to 
position 0 or 1, or remove electronic key from steering 
lock. Press tow-away alarm switch (1). The indicator 
lamp (2) illuminates briefly.
Exit vehicle, and lock vehicle with the remote control.
The tow-away alarm remains switched off until the 
vehicle is locked again with the electronic key, at which 
time it is automatically reactivated. 
     
        
        Page 45 of 354

42 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Power seats front
To operate the front power seat adjustment switches, 
turn electronic key in steering lock to position 1 or 2 
(with the driver’s or front passenger’s door open, the 
power seats can also be operated with the electronic key 
removed or in steering lock position 0).
Wa r n i n g !
Do not adjust the driver’s seat while driving. 
Adjusting the seat while driving could cause the 
driver to lose control of the vehicle.Never ride in a moving vehicle with the backrest 
reclined. Sitting in an excessively reclined position 
can be dangerous. You could slide under the seat 
belt in a collision. If you slide under it, the belt 
would apply force at the abdomen or neck. That 
could cause serious or even fatal injuries. The 
backrest and seat belt provide the best restraint 
when the wearer is in an upright position and the 
belt properly positioned on the body.Never place hands under seat or near any moving 
parts while a seat is being adjusted.
When leaving the vehicle, always remove the 
electronic key from the steering lock, and lock your 
vehicle.The power seats can also be operated with the 
driver’s or front passenger door open. Do not leave 
children unattended in the vehicle or with access 
to an unlocked vehicle. Unsupervised use of vehicle 
equipment may cause an accident and/or serious 
personal injury. 
     
        
        Page 46 of 354

43 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index The slide switches are located in each front door.
We recommend to adjust the power seat in the following 
order:
1Seat, up / down
Press the switch (up / down direction) until 
comfortable seating position with still sufficient 
headroom is reached.
2Seat adjustment, fore / aft
Press the switch (fore / aft direction) until a 
comfortable seating position is reached that still allows you to reach the accelerator / brake pedal 
safely. The position should be as far rearward as 
possible, consistent with ability to properly operate 
controls.
3Seat cushion tilt
Press the switch in the direction of the arrow until 
your legs are lightly supported. 
4Backrest tilt
Press the switch in the direction of the arrow until 
your arms are slightly angled when holding the 
steering wheel.
5Head restraint
The height of the head restraint is adjusted 
automatically with the seat so that the back of the 
head is supported approximately at ear level. Adjust 
the head restraint using the switch if the preset 
position does not support the back of your head 
approximately at ear level.
Adjust t he head restraint angle by hand.
Note:
Your vehicle is equipped with power head restraints, 
do not try to raise or lower them manually.
2
5
4
3
2
1
P54.00-2074-26 
     
        
        Page 47 of 354
44 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Synchronizing head restraints
If the power supply was interrupted (battery 
disconnected or empty), the head restraints are no 
longer adjusted automatically.
To resynchronize the adjustment feature, turn 
electronic key in steering lock to position 2, move the 
seat completely forward and the head restraint fully 
down, and hold respective buttons for approximately 
two seconds.Caution!
Do not remove head restraints except when mounting 
seat covers. For removal refer to Head Restraints, Front, 
see page 48. Whenever restraints have been removed be 
sure to reinstall them before driving.