Page 31 of 327

Keys, doors and windows29Vehicle personalisation 3 121.
The setting can be saved for the
remote control or electronic key being
used 3 24.
Passive locking
In vehicles with electronic key
system, this feature locks the vehicle
automatically after several seconds if an electronic key has been
recognised previously inside the
vehicle, all doors have then been
closed and the electronic key does
not remain in the interior.
If the electronic key remains in the
vehicle or the ignition is not off,
passive locking will not be permitted and a warning tone sounds three
times.
If there have been two or more
electronic keys in the vehicle and the
ignition was on once, the feature
locks the vehicle if just one electronic
key is taken out of the vehicle.Passive locking can be disabled by
pressing c for a few seconds while
one door is open. It remains disabled
until e is pressed or the ignition is
switched on.
Activation or deactivation of passive
locking can be set in the menu
Settings , I Vehicle in the Colour-Info-
Display.
Colour-Info-Display 3 118.
Vehicle personalisation 3 121.
The setting can be saved for the remote control or electronic key being used 3 24.Child locks9 Warning
Use the child locks whenever
children are occupying the rear
seats.
Using a key or suitable screwdriver,
turn the child lock in the rear door to
the horizontal position. The door
cannot be opened from the inside. For
deactivation, turn the child lock to the vertical position.
Page 32 of 327
30Keys, doors and windowsDoors
Load compartment Tailgate
Opening
5-door Hatchback, Sports Tourer,
Country Tourer
After unlocking, press the button
under the tailgate moulding and open the tailgate manually.
4-door Saloon
Press x on radio remote control
until the tailgate is opened
automatically, or press the button
under the tailgate moulding after
unlocking.
Central locking system 3 25.
Closing
Use the interior handle.
Do not pull the button under the
moulding whilst closing as this will unlock the tailgate again.
Central locking system 3 25.
Page 33 of 327

Keys, doors and windows31Power tailgate9Warning
Take care when operating the
power tailgate. Risk of injury,
particularly to children.
Keep a close watch on the
movable tailgate when operating.
Ensure that nothing becomes
trapped during operating and no
one is standing within the moving
area.
The power tailgate can be operated
by:
● x on the radio remote control.
● The switch C on the inside of
the driver's door.
● The touchpad switch under the exterior tailgate moulding and
C in the open tailgate.
On vehicles with automatic
transmission, the tailgate can only be operated when the vehicle is
stationary and automatic
transmission in P.
The turn signal lights flash and a
chime sounds when the power
tailgate is operating.
Note
Operating the power tailgate does not operate the central locking
system. To open the tailgate with the
remote control, it is not necessary to unlock the vehicle. Unlock the
vehicle first when operating with the
touchpad switch or the switch in the
driver's door. Lock the vehicle after
closing.
Central locking system 3 25.
Operation with radio remote controlPress and hold x until the tailgate
starts to open or close.
Operation with the switch on the
inside of the driver's door
Press C on the inside of the driver's
door until the tailgate starts to open or close.
Page 37 of 327

Keys, doors and windows35Activating
Radio remote control or electronic
key: press e twice within 5 seconds.
Anti-theft alarm system The anti-theft alarm system
incorporates and is operated in
conjunction with the anti-theft 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 must be closed and the
electronic key must not remain in the
vehicle. Otherwise the system cannot
be activated.
● Radio remote control: self- activated 30 seconds after
locking the vehicle by pressing e
once.
● Electronic key system: self- activated 30 seconds after
locking the vehicle by pressing the button on any exterior door
handle.
● Radio remote control or electronic key: activate directly
by pressing e twice within
5 seconds.
● Electronic key system with passive locking enabled:
activated shortly after passive locking occurs.
Note
Changes to the vehicle interior such
as the use of seat covers, and open windows or sunroof, could impair the
function of passenger compartment
monitoring.
Page 38 of 327

36Keys, doors and windowsActivation without monitoring of
passenger compartment and
vehicle inclination
Switch off the monitoring of
passenger compartment and vehicle
inclination when e.g. animals are
being left in the vehicle, because of
high volume ultrasonic signals or due to movements triggering the alarm.
Also switch off when the vehicle is on
a ferry or train.
1. Close tailgate, bonnet, windows and sunroof.
2. Press o. LED in button o
illuminates for a maximum of
10 minutes.
3. Close the doors.
4. Activate the anti-theft alarm system.
Status message is displayed in the
Driver Information Centre.
Status LED
Status LED is integrated in the sensor
on top of the instrument panel.
Status during the first 30 seconds of
anti-theft alarm system activation:
LED illuminates:test, arming delayLED flashes
quickly:doors, tailgate or
bonnet not
completely closed,
or system faultStatus after system is armed:LED flashes
slowly:system is armed
Seek the assistance of a workshop in
the event of faults.
Deactivation
Radio remote control: Unlocking the
vehicle by pressing c deactivates
anti-theft alarm system.
Electronic key system: Unlocking the
vehicle by pressing the button on any
exterior door handle deactivates anti-
theft alarm system.
Page 39 of 327

Keys, doors and windows37The system is not deactivated when
unlocking the driver's door with the
key or with the central locking button
in the passenger compartment.
Alarm When triggered, the alarm horn
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 only by pressing c or by
pressing the switch on the door
handle (electronic key system) or
switching on the ignition.
A triggered alarm, which has not been interrupted by the driver, will be
indicated by the hazard warning
lights. They will flash quickly three
times when the vehicle is unlocked
next time with the radio remote
control. Additionally, a warning
message is displayed in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 120.If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: Switch the
ignition on then off, then disconnect
the vehicle's battery within
15 seconds.
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 is removed
from the ignition switch.
If control indicator d flashes when the
ignition is on, there is a fault in the
system; the engine cannot be started.
Switch off the ignition and repeat start
attempt.
If control indicator d continues
flashing, attempt to start the engine
using the spare key and seek the
assistance of a workshop.Note
The immobiliser does not lock the
doors. You should always lock the
vehicle after leaving it and switch on the anti-theft alarm system 3 25,
3 35.
Control indicator d 3 109.
Page 41 of 327

Keys, doors and windows39Folding mirrors with remote
control
This function is only available if thevehicle is equipped with electrical
seat memory.
Press e again after locking for
one second to fold in mirrors.
Press c again after unlocking for
one second to fold out mirrors.
Pressing for three seconds activates
window operation. Power windows
3 41. Sunroof 3 44.
If the mirrors were folded in using the
control in the driver's door, they are
not folded out by pressing c.
This function can be activated or
deactivated in the Vehicle
personalisation.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 118.
Vehicle personalisation 3 121.
The settings are automatically stored
for the key being used 3 24.
Heated mirrors
Operated by pressing Ü.
The LED in the button indicates
activation.
Heating works with the engine
running and is switched off
automatically after a short time.
Automatic dimming Dazzling by following vehicles at night
is automatically reduced by dimming
the exterior mirror on the driver's side.
Parking assist For mirrors with position memory, theexterior mirror on the passenger side
is automatically aimed at the rear
tyres as a parking aid when reverse
gear is selected, except during trailer
operation.
Position memory 3 51.
Activation or deactivation of this
function can be changed in the menu Settings in the Info-Display. Vehicle
personalisation 3 121.
Page 44 of 327

42Keys, doors and windowsSafety function
If the window glass encounters
resistance above the middle of the
window during automatic closing, it is
immediately stopped and opened
again.
Override safety function
In the event of closing difficulties due
to frost or the like, switch on the
ignition, then pull the switch to the first
detent and hold. The window moves
up without safety function enabled.
To stop movement, release the
switch.Child safety system for rear
windows
Press z to deactivate rear door
power windows; the LED illuminates.
To activate, press z again.
Comfort operating with the
remote control
Front windows or all windows can be
operated remotely from outside the
vehicle.
Press c again for three seconds after
unlocking: windows will be opened.
Press e again for three seconds after
locking: windows will be closed.
Press any button to stop window
movement.
Folding mirrors 3 38.
Closing sunroof 3 44.
Confirmation
Complete opening or closing of the
windows is confirmed by the hazard
warning flashers.