Page 36 of 283

34Keys, doors and windowsVehicle security
Anti-theft locking system9 Warning
Do not use the system if there are
people in the vehicle! The doorscannot be unlocked from the
inside.
The system deadlocks all the doors. All doors must be closed otherwise
the system cannot be activated.
Unlocking the vehicle disables the
mechanical anti-theft locking system.
This is not possible with the central
locking button.
Activating
Press N on the radio remote control
twice within 5 seconds.
Anti-theft alarm system
The anti-theft alarm system is
combined with the central locking
system.
It monitors: ● doors, tailgate, bonnet
● passenger compartment including adjoining load
compartment
● vehicle inclination, e.g. if it is raised
● ignition
Activation
All doors, the load compartment and the engine compartment must be
closed and the electronic key must
not remain in the vehicle.
● Radio remote control: activated 45 seconds after locking the
vehicle by pressing e once.
● Electronic key system: activated 45 seconds after locking the
vehicle by pressing with a finger
or thumb on one of the front door handles at the markings.
If a door, the tailgate or the bonnet is
not properly closed, the vehicle is not locked. However, the anti-theft alarm
is self-activated after 45 seconds.
Notice
Changes to the vehicle interior such
as the use of seat covers and open
windows, could impair the function of passenger compartment
monitoring.
Page 37 of 283

Keys, doors and windows35Activation without monitoring of
passenger compartment and
vehicle inclination
Switch off the monitoring of
passenger compartment and vehicle
inclination when animals are being
left in the vehicle, because of high
volume ultrasonic signals or
movements triggering the alarm. Also switch off when the vehicle is on a
ferry or train.
1. Close tailgate, bonnet, windows.
2. Switch off ignition and press o
within 10 seconds until the LED in the button o illuminates.
3. Close doors.
4. Activate the anti-theft alarm system.
Indication LED in the o button flashes if the
anti-theft alarm system is activated.
The hazard warning lights illuminates
for a few seconds.
DeactivationRadio remote control: Unlocking the
vehicle by pressing c deactivates the
anti-theft alarm system.Electronic key system: Unlocking the
vehicle by pressing on one of the front
door handles at the markings
deactivates the anti-theft alarm
system.
The electronic key must be outside
the vehicle, within a range of approx. 1 m of the relevant door side.
The system is not deactivated by
unlocking the driver's door with the
key or with the central locking button
in the passenger compartment.
The hazard warning lights flash for a
few seconds.
AlarmWhen triggered, the alarm siren
sounds and the hazard warning lights
flash simultaneously. The number
and duration of alarm signals are
stipulated by legislation.
The anti-theft alarm system can be
deactivated by pressing c, by
pressing on one of the front door
handles at the markings with
electronic key system or switching on the ignition.
Page 38 of 283

36Keys, doors and windowsA triggered alarm, which has not beeninterrupted by the driver, will be
indicated by the LED in the button
o . The LED will flash quickly the
next time the vehicle is unlocked with the radio remote control.
If the battery has been reconnected
(e.g. after maintenance work), wait for 10 minutes to restart the engine.
Fault
If the LED in the button o
illuminates permanently when
switching on the ignition, seek the
assistance of a workshop.
Locking the vehicle without
activation of the anti-theft alarm
Lock the vehicle by locking the
driver's door with the integral key.
Immobiliser
The system is part of the ignition
switch and checks whether the
vehicle is allowed to be started with
the key being used.The immobiliser is activated
automatically after the key has been removed from the ignition switch.
Notice
Radio Frequency Identification
(RFID) tags may cause interference with the key. Do not have it placednear the key when starting the
vehicle.
Notice
The immobiliser does not lock the doors. Always lock the vehicle after
leaving it 3 23.
Switch on the anti-theft alarm
system 3 34.
Emergency operation of electronic
key 3 135.Exterior mirrors
Convex shape
The shape of the mirror makes
objects appear smaller, which will affect the ability to estimate
distances.
Side blind spot alert 3 184.
Electric adjustment
Select the relevant exterior mirror by
pushing the mirror button to the left or right.
Then swivel the control to adjust the
mirror.
Page 39 of 283
Keys, doors and windows37Folding mirrors
For pedestrian safety, the exterior
mirrors will swing out of their normal
mounting position if they are struck
with sufficient force. Reposition the mirror by applying slight pressure tothe mirror housing.
Electric folding
Pull mirror button rearwards. Both
exterior mirrors will fold.
Pull mirror button rearwards again to return both exterior mirrors to their
original position.
If an electrically folded mirror is
manually extended, pulling mirror
button rearwards will only electrically
extend the other mirror.
Automatic folding When the vehicle is unlocked, the
mirrors swing to their normal
mounting position. When the vehicle
is locked, the mirrors are folded down.
To enable or disable automatic
folding of the exterior mirrors, consult
a workshop.
Heated mirrors
Operated by pressing b
.
Heating works with the engine
running and is switched off
automatically after a short time.
Heated rear window 3 40.
Page 42 of 283

40Keys, doors and windowsChild safety system for rear
windows
Press V to deactivate rear door
power windows; the LED illuminates.
To activate, press V again.
Operating windows from outside
The windows can be operated
remotely from outside the vehicle.
Press and hold e to close windows.
Release button to stop window
movement.
If the windows are fully closed, the
hazard warning lights will flash twice.
Overload
If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Initialising the power windows
If the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery), a
warning message is displayed in the
Driver Information Centre.
Vehicle messages 3 106.
Activate the window electronics as
follows:
1. Close doors.
2. Switch on ignition.
3. Pull switch until the window is closed and keep pulling for
additional 2 seconds.
4. Push switch until the window is completely open and keep
pushing for additional 2 seconds.
5. Repeat for each window.
Heated rear window
Operated by pressing b together with
heated exterior mirrors.
Heating works with the engine
running and is switched off
automatically after a short time.
Page 43 of 283
Keys, doors and windows41Depending on climate control system,
b is located at a different position.
Vehicles with heating and
ventilation system or air
conditioning systemVehicles with electronic climate
control system
Heated windscreen
Operated by pressing ,. LED in
button illuminates.
Heating works with the engine
running and is switched off
automatically after a short time.
Depending on climate control
system, , is located at a different
position.
Vehicles with electronic climate
control system
Vehicles with air conditioning
system
Page 51 of 283

Seats, restraints49Move front of switch upwards /
downwards.
Backrest inclination
Turn switch forwards / backwards.
Lumbar support, adjustable thigh
support, see manual seat adjustment 3 46.
Memory function for power seat
adjustment
Two different driver's seat settings
can be stored.
Vehicle personalisation 3 107.
Storing memory position
● Adjust driver's seat to desired position.
● Press and hold M and 1 or 2
simultaneously until a chime sounds.
Recall of memory positions
Press and hold 1 or 2 until the stored
seat position has been reached.
Releasing the button during seat
movement cancels the recall.
Safety function
If the driver's seat encounters
resistance during movement, the
recall may stop. After removing the
obstruction, press and hold the
appropriate memory position button
for 2 seconds. Try recalling the
memory position again. If the recall
does not operate, consult a
workshop.
Overload
If the seat setting is electrically
overloaded, the power supply is
automatically cut-off for a short time.
Notice
After an accident in which airbags
have been deployed, the memory
function for each position button will
be deactivated.
Page 52 of 283
50Seats, restraintsArmrest
The armrest can be slid forwards by
10 cm. Pull the handle to slide the
armrest. Under the armrest there is a storage compartment.
Heating
Adjust heating to the desired setting
by pressing ß for the respective seat
one or more times. The control
indicator in the button indicates the
setting.
Prolonged use of the highest setting
for people with sensitive skin is not
recommended.
Seat heating is operational when
engine is running and during an
Autostop.
Stop-start system 3 138.
Ventilating
Activate ventilation by pressing A for
the respective front seat.
Ventilated seats are operational when
engine is running and during an
Autostop.
Stop-start system 3 138.