Page 26 of 289

24Keys, doors and windowsBatteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. Remove the cover.
2. Extract the flat battery from its location.
3. Replace battery with a battery of the same type. Pay attention to
the installation position.
4. Clip the cover in place.
Fault
If the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
● Fault in electronic key.
● Electronic key is out of reception range.
● The battery voltage is too low. ● Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 24.
Central locking system Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks and opens the respective
door.Notice
In the event of an accident in which airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Notice
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened. A precondition is that the
setting is activated in the vehicle
personalisation 3 123.
Selective unlocking
Selective unlocking allows you to
unlock either the front doors and the
fuel filler flap or the sliding doors, the
rear doors / the tailgate. Selective
unlocking has to be configured.
Page 27 of 289
Keys, doors and windows25
To activate, switch on the ignition and
then press * more than 2 seconds.
The LED illuminates. An audible
signal is given and depending on the
configuration of the vehicle, a
message is displayed in Info Display.
To deactivate, switch on the ignition
and then press * for more than 2
seconds. The LED extinguishes.
Remote control operation
Unlocking
Press <.
Unlocking mode can be set. Two
settings are selectable:
● All doors and load compartment will be unlocked by pressing <.
● Only the driver's door and the passenger door will be unlocked
by pressing <.
Unlocking the load compartment
Press * or press < two times to
unlock the load compartment only,
i.e. sliding doors and rear doors or
tailgate.
Locking
Close doors and the load
compartment.
Press -.
If the vehicle is not closed properly,
the central locking system will not
work.
Page 28 of 289

26Keys, doors and windowsConfirmation
Operation of the central locking
system is confirmed by the hazard
warning flashers. A precondition is
that the setting is activated in the
vehicle personalisation 3 123.
Electronic key system operation
The electronic key must be outside
the vehicle, within a range of approx. one metre of the relevant door side.
Unlocking
Pass a hand behind the door handle
of one of the front doors, the sliding
doors, the hinged doors or press the
tailgate button.
Unlocking mode can be set in the
vehicle personalisation menu in the
Info Display. Two settings are
selectable:
● All doors, the hinged doors / the load compartment and the fuel
filler flap will be unlocked by
passing a hand behind one of the front door handles, the handles of
the sliding doors or the handles
of the hinged doors. If the vehicle is equipped with a tailgate, press
the tailgate button.
● Only the front doors and the fuel filler flap will be unlocked by
passing a hand behind one of
front door handles.
Vehicle personalisation 3 123.
Unlocking the load compartment
Only the load compartment, i.e. the
hinged doors or the tailgate, will be
unlocked by passing a hand behind
the hinged doors handle or pressing
the tailgate button.
Locking
Page 29 of 289

Keys, doors and windows27Press on one of the door handles or
press the tailgate button.
All doors, load compartment and fuel filler flap will be locked.
If the vehicle is not closed properly,
the electronic key remains in the
vehicle or the ignition is not off,
locking will not be permitted.
Confirmation
Operation of central locking system is
confirmed by the hazard warning
flashers.
Central locking button
Locks or unlocks all doors and the
load compartment from inside the
passenger compartment. If the
vehicle is equipped with electronic
key system, the fuel filler flap is locked or unlocked, too.
Press - to lock. The LED in the button
illuminates.
Press - again to unlock. The LED in
the button extinguishes.
Operation with the key in case of
a central locking system fault
In case of a fault, e.g. vehicle battery
or remote control / electronic key
battery is discharged, the driver's
door can be locked or unlocked with
the mechanical key.
Manual unlocking
Electronic key: press and hold the
latch to extract the integral key.Manually unlock the driver's door by
inserting and turning the key in the
lock cylinder.
The other doors can be opened by
pulling the interior handle.
By switching on the ignition, the anti-
theft locking system is deactivated.
Page 30 of 289

28Keys, doors and windowsManual locking
Manually lock the doors, tailgate and
fuel filler flap by inserting and turning the key in the lock cylinder of the
driver's door.
Automatic locking Automatic locking after driving off
This system allows automatic locking of the doors and the tailgate as soon
as the speed of the vehicle exceeds
6 mph.
If one of the doors or the tailgate is
open, the automatic central locking
does not take place. This is signalled
by the sound of the locks rebounding, accompanied by illumination of N in
the instrument cluster, an audible
signal and the display of an alert
message.
This function can be activated or
deactivated at any time. With the
ignition on, press - until an audible
signal starts and a corresponding
message is displayed.
The state of the system stays in
memory when switching off the
ignition.
Automatic relock after unlocking
This feature automatically locks all
doors, load compartment and fuel
filler flap a short time after unlocking
with the remote control or electronic
key, provided no door has been
opened.
Child locks9 Warning
Use the child locks whenever
children are occupying the rear
seats.
Page 31 of 289
Keys, doors and windows29Mechanical child locks
To activate, turn the child lock
upwards. The sliding door cannot be
opened from the inside.
To deactivate, turn the child lock
downwards. The sliding door can be
opened from the inside.
Electric child locks
Remotely operated system to prevent
opening of the sliding doors via the
interior door handles.
Switching on
Press >. The indicator lamp in the
button comes on, accompanied by a
confirmation message. This indicator
lamp remains on until the child lock is
switched off.
Switching off
Press > again. The indicator lamp on
button goes off, accompanied by a
confirmation message. This indicator
lamp remains on while child lock is
switched on.
Page 32 of 289
30Keys, doors and windowsDoors
Sliding doors
Opening
After unlocking, pull the outside door
handle and slide the door towards the
rear beyond the point of resistance.
To open from inside, push the handle and slide the door towards the rear
beyond the point of resistance.
Closing
To close from outside, pull the door
handle and slide the door towards the
front until it locks.
To close from inside, push the handle and slide the door towards the front
until it locks.
Caution
Ensure the sliding side door is fully closed and secure before driving
the vehicle.
Page 33 of 289

Keys, doors and windows31Caution
To avoid damage, do not attempt
to operate the sliding side door
when the fuel filler flap is open.
9 Danger
Do not drive with the sliding side
door open or ajar, e.g. when
transporting bulky objects, since
toxic exhaust gases, which cannot be seen or smelled, could enter
the vehicle. This can cause
unconsciousness and even death.
Refuelling 3 204.
Power sliding doors
9 Warning
Take care when operating the
power sliding doors. Risk of injury, particularly to children.
Take particular care when the
vehicle is parked on a slope: open
or close the door fully until it
latches into its locking position.
Keep a close watch on the moving doors when operating. Ensure that
nothing becomes trapped during
operation and no-one is standing
within the moving area.
The power sliding doors can be
operated by:
● pressing N or M on the radio
remote control
● pressing N or M on the electronic
key
● pressing P or O on the
instrument panel
● pressing P or O on the door
frame
● hands-free operation with motion
sensors below the rear bumper
● pulling the respective door handle.
Operation with the electronic key
Press N or M longer to open or close
the respective power sliding door.
Hands-free operation
Depending on the vehicle
configuration, the vehicle may have
one or two hands-free operated
sliding doors.