Page 26 of 211

24Keys, doors and windowsWith the 3-button remote control, the
front doors and load compartment/
sliding side doors (where fitted) can
be unlocked and locked separately.
For safety reasons, the vehicle
cannot be locked if the key is in the
ignition switch.
Notice
If no door is opened within approx.
2 minutes after the vehicle has been unlocked, the vehicle is re-locked
automatically.
Close doors and load compartment. If
the doors are not closed properly, the central locking system will not work.
Refer to "Manual key operation"
below for further information.
Remote control operation
Operation of central locking system
with the remote control is confirmed
by the hazard warning flashers.Unlocking with 2-button remote
control
Depending on configuration:
● Press and hold c to unlock all
doors and the load compartment.
- or -
● Press c once to unlock the
driver's door, and press c twice to
unlock all doors and the load compartment.
Unlocking with 3-button remote
control
Depending on configuration:
● Press and hold c to unlock all
doors and the load compartment.
- or -
● Press c once to unlock the
driver's door, and press c twice to
unlock all doors and the load compartment.
- or -
● Press c once to unlock all doors
and the load compartment.
Page 27 of 211
Keys, doors and windows25Locking with 2-button remote control
Press e: All doors and the load
compartment are locked.
Locking with 3-button remote control
Press e: All doors and the load
compartment are locked.
Notice
Where fitted, alarm monitoring of the passenger compartment 3 35 is
switched off by pressing and holding
e (which is confirmed by an audible
signal).
If this was done unintentionally,
unlock the doors again and press e
briefly to lock the vehicle.
Load compartment locking and
unlocking with 2-button remote
controlDepending on configuration, press c
once or twice to unlock the load compartment (and sliding side doors).
Press e to lock the load compartment
(and, depending on version, the
sliding side doors).
Load compartment locking and
unlocking with 3-button remote
control
Press G to lock or unlock load
compartment (and, depending on
version, the sliding side doors).
Page 29 of 211

Keys, doors and windows27Handsfree operation is automatically
disabled when the electronic key buttons have been operated. To re-
enable handsfree operation, restart
the engine.
Locking with electronic key buttons
Press e to lock all doors and the load
compartment.
Load compartment locking and
unlocking with electronic key -
handsfree operation
Press the button on the exterior door
handle to lock or unlock the rear
doors/tailgate (and sliding side doors)
when the electronic key is within
range of the detection zone (approx.
one metre).
The rear doors/tailgate (and sliding side doors) only lock/unlock when at
least 3 seconds have passed since
the button was last pressed.
Handsfree operation is automatically
disabled when the electronic key buttons have been operated. To re-
enable handsfree operation, restart
the engine.
Load compartment locking and
unlocking with electronic key buttonsPress G to lock/unlock the rear
doors/tailgate (and sliding side
doors).
Electronic key system 3 22.
Manual key operation
Manually lock or unlock the doors by
turning the key in the lock.
Rear doors
In the event the rear doors are locked
manually after the vehicle has been
unlocked with remote control button
c , lock the entire vehicle again by
pressing e to reset central locking
system. Otherwise pressing c may
not unlock the rest of the vehicle.
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28Keys, doors and windowsAfter manually unlocking the rear
doors when the rest of the vehicle is
locked, it may be necessary to press
e twice to lock the entire vehicle.
Central locking switch Locks or unlocks the doors and loadcompartment from the passenger
compartment.
Press e to lock the vehicle. Activation
is indicated by the LED in the button.
When closing any open door, the door
is locked automatically.
Press e again to unlock the vehicle.
If the vehicle is driven with an open
load compartment, the front doors
(and sliding side doors) can still be
locked. With the ignition switched on,
press and hold e for approx.
5 seconds. When closing the rear
doors/tailgate, they are locked
automatically.
Automatic locking 3 28.
Handsfree operation is automatically disabled when e is pressed. To re-
enable handsfree operation, restart
the engine.
Electronic key system 3 22.
Slam door locks
Certain models feature load
compartment locks which are isolated for added security.
With slam door locks, while the doors can be locked and unlocked using the
remote control or electronic key, the
load compartment must be manually
opened by turning the key in the lock.
Rear doors 3 30.Automatic locking
Automatic locking after driving off
This security feature can be
configured to automatically lock the
doors and load compartment as soon as the vehicle is driven.
Activation
With the ignition switched on, press and hold e on the central locking
switch for approx. 5 seconds. An
audible signal confirms activation.
Deactivation
With the ignition switched on, press and hold e on the central locking
switch for approx. 5 seconds. An
audible signal confirms deactivation.
Central locking switch 3 23.
Page 31 of 211

Keys, doors and windows29Child locks
The child safety lock for the sliding
side door is located on its rearward
facing edge.
To prevent the sliding side door from being opened from the inside, open
the door and engage the child lock.
9 Warning
Use the child locks whenever
children are occupying the rear
seats, to prevent unintentional
opening from the inside.
Using a suitable tool, turn the child
lock switch in the sliding side door to
the locked position; the door cannot
be opened from the inside.
The child lock remains engaged even after unlocking the vehicle with the
remote control. The door can only be
opened from outside.
To disengage, turn the child lock
switch to the unlocked position.Doors
Sliding door
Open and close the sliding side door
only when the vehicle is at a standstill
with the parking brake applied.
Pull the interior handle towards the
rear to unlock and open.
The door can be locked from inside
the vehicle with the interior lock
switch.
Central locking system 3 23.
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34Keys, doors and windows2-button and 3-button remote
control operation
Operation is confirmed by the hazard
warning flashers flashing five times.
Activation
Press e twice.
- or -
Turn manual key in driver's door lock
towards rear of vehicle twice.
Deactivation
Unlock the doors by pressing c on the
remote control or by turning the
manual key in driver's door lock
towards front of vehicle.
Electronic key system operation
Operation is confirmed by the hazard warning flashers.
Activation
For handsfree operation, the
electronic key must be outside the
vehicle, within a range of approx.
one metre of the front doors or load
compartment.
Press the button twice on any exterior
door handle.
- or -
Press e twice.
Deactivation
Unlock the doors by pressing the
button on any exterior door handle or
press c.
Handsfree operation is automatically disabled when the electronic key
buttons have been operated (or the
central locking switch e is pressed).
To re-enable handsfree operation,
restart the engine.
Central locking system 3 23.
Electronic key system 3 22.
Page 37 of 211
Keys, doors and windows35Anti-theft alarm systemThe anti-theft alarm system is
operated in conjunction with the
central locking system 3 23.
It monitors: ● doors, tailgate, bonnet
● passenger compartment
● load compartment
● ignition
● interruption of alarm siren power supply
Activation All doors and the bonnet must be
closed.
Hazard warning lights flash to confirm activation. If the hazard warning lights
do not flash upon activation, a door or the bonnet is not fully closed.2-button and 3-button remote control
Press e to activate the anti-theft alarm
system.
Electronic key
For handsfree operation, the
electronic key must be outside the
vehicle, within a range of approx.
one metre of the front doors or load compartment.
Press the button on any exterior door
handle.
- or -
Page 38 of 211

36Keys, doors and windowsPress e to activate the anti-theft alarm
system.
Electronic key system 3 22.
Deactivation Unlocking the vehicle (with c or the
button on any exterior door handle) or switching on the ignition deactivates
the anti-theft alarm system. Hazard
warning lights flash to confirm
deactivation.
The system is not deactivated when
unlocking the driver's door with the
key or with the central locking switch in the passenger compartment.
Notice
If the alarm has been triggered,
unlocking the vehicle with the key
will not stop the alarm siren. To stop the siren, switch on the ignition. The
hazard warning lights will not flash
upon deactivation if the alarm has
been triggered.Activation without monitoring of
passenger compartment
Disable monitoring of the passenger
compartment, e.g. when animals are being left in the vehicle, or if the
auxiliary heater has been set for a
timed or remote controlled start
3 108.
Press and hold e on the remote
control or electronic key; an audible signal will sound as confirmation.
The status will remain until the doors
are unlocked.
AlarmWhen triggered, the alarm sounds via
a separate battery-backed power
sounder, and the hazard warning
lights flash simultaneously. The
number and duration of alarm signals are stipulated by legislation.
If the vehicle battery is disconnected
or its power supply is interrupted, the
alarm siren will be triggered. First
deactivate the anti-theft alarm system
if the vehicle battery must be
disconnected.To silence the alarm siren (if
triggered) and therefore deactivate
the anti-theft alarm system, reconnect vehicle battery and unlock the vehicle
or switch on the ignition.
Immobiliser
The immobiliser 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 and
also if the key is left in the ignition
switch when the engine is turned off.
If the engine cannot be started, switch off the ignition and remove key, wait
approx. 2 seconds and then repeat
the start attempt. If start attempt is
unsuccessful, attempt to start the
engine using the spare key and seek
the assistance of a workshop.