Page 25 of 245

Keys, doors and windows23Notice
To save battery power, the keyless
functions are set to stand-by after 21
days of non-use. To reactivate the
functions, press a button on the
electronic key.
Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly
or the range is reduced. The need for battery replacement is indicated by a
message in the Driver Information
Centre 3 95.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. To unclip the cover insert a small screwdriver in the cutout.
2. Remove the cover.
3. Extract the flat battery from its location.
4. Replace battery with a battery of the same type. Pay attention to
the installation position.
5. 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 frequentintervals, 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 23.
Central locking system Unlocks and locks doors, load
compartment and fuel filler flap.
Pull an interior door handle fully to
unlock and open the respective door.
Page 26 of 245
24Keys, doors and windowsNotice
In the event of an accident in which airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Automatic locking 3 28
Rigid key
Unlocking
Turn key in the driver's door lock
cylinder.
Unlocking mode can be set in the
vehicle personalisation menu in the
Info Display. Two settings are
selectable:
● All doors, load compartment and fuel filler flap will be unlocked by
turning the key once.
● Only the driver's door and fuel filler flap will be unlocked by
turning the key once. To unlock
entire vehicle, turn the key twice.
Vehicle personalisation 3 96.
Locking
Close doors, load compartment and
fuel filler flap.Turn key in the driver's door lock
cylinder.
If the vehicle is not closed properly,
the central locking system will not
work.
Remote control operation
Unlocking
Press O.
Page 27 of 245
Keys, doors and windows25Unlocking mode can be set in the
vehicle personalisation menu in the
Info Display. Two settings are
selectable:
● All doors, load compartment and fuel filler flap will be unlocked by
pressing O once.
● Only the driver's door and fuel filler flap will be unlocked by
pressing O once. To unlock entire
vehicle, press O twice.
Vehicle personalisation 3 96.
Unlocking the tailgate
Press P longer to unlock the
tailgate only.
Vehicle personalisation 3 96.
Unlocking and opening the tailgate
3 29.
Locking
Close doors, load compartment and
fuel filler flap.
Press N.
If the vehicle is not closed properly,
the central locking system will not
work.
Confirmation
Operation of the central locking
system is confirmed by the hazard
warning flashers.
Electronic key system operation
The electronic key must be outside
the vehicle, within a range of approx. 1 m of the relevant door side.
Page 28 of 245

26Keys, doors and windowsUnlocking
Pass hand behind one of the front
door handles to unlock the vehicle or
press the tailgate button.
Unlocking mode can be set in the
vehicle personalisation. Three
settings are selectable:
● Only the driver's door and fuel filler flap will be unlocked by
passing hand behind the driver's
door handle.
● Entire vehicle will be unlocked by
passing hand behind one of the
front door handles or by pressing
the tailgate button.
● Only the tailgate will be unlocked
by pressing the tailgate button.
Vehicle personalisation 3 96
Locking
Press marking of the front door
handles.
Entire vehicle 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 and a
warning chime sounds.
Unlocking and opening the tailgate
The tailgate can be unlocked and
opened by pushing the tailgate button
when the electronic key is in range.
The doors remain locked depending
on the configuration in the vehicle
personalisation.
Load compartment 3 29
Vehicle personalisation 3 96
Confirmation
Operation of central locking system is
confirmed by the hazard warning
flashers.
Central locking button Locks or unlocks entire vehicle from
the passenger compartment via a
switch.
Page 29 of 245
Keys, doors and windows27
Press Q to lock. The LED in the button
illuminates.
Press Q 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 vehicle 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. With working central locking system the vehicle will be
unlocked.
By switching on the ignition, the anti- theft locking system is deactivated.
The other doors can be opened by
pulling the interior handle. The load
compartment and fuel filler flap will
possibly not be unlocked.
Manual locking
Manually lock the driver's door by
inserting and turning the key in the lock cylinder. With working centrallocking system the vehicle will be
locked.
Page 30 of 245

28Keys, doors and windows
To lock the other doors, first remove
the black cover by inserting a key and turning clockwise.
Insert key into the recess and move
latch sideways.
Remove key and attach the black cover.
The fuel filler flap and tailgate are
possibly not locked.
Automatic locking Automatic locking after driving off This system allows automatic locking
as soon as the speed of the vehicle
exceeds 6 mph.
If the vehicle is not closed properly,
the automatic locking does not take
place. This is signalled by the sound
of the locks rebounding,
accompanied by illumination of h in
the instrument panel, an audible signal and the display of an alert
message.
Activation or deactivation
With the ignition on, press Q 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 relocks the
vehicle a short time after unlocking
with the remote control or electronic
key, provided vehicle has not been
opened.
Child locks9 Warning
Use the child locks whenever
children are occupying the rear
seats.
Mechanical child locks
Page 31 of 245
Keys, doors and windows29Turn the red child lock in the rear
doors to the horizontal position by
using a key. The door cannot be
opened from the inside.
To deactivate, turn the child lock to
the vertical position.
Electric child locks
Remotely operated system to prevent
opening of the rear doors using the
interior handles.
Switching on
Press Ô. The indicator light in the
button comes on, accompanied by a
confirmation message. This indicator
light remains on until the child lock is
switched off.
Switching off
Press Ô again. The indicator light in
the button goes off, accompanied by
a confirmation message.Doors
Load compartmentTailgate
Opening
Press the tailgate button and open the
tailgate.
Page 32 of 245

30Keys, doors and windowsClosing
Use the interior handle.
Do not push the tailgate button whilst
closing as this will open the tailgate
again.
Central locking system 3 23.
General hints for operating
tailgate
9 Danger
Do not drive with the tailgate 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.Caution
Before opening the tailgate, check overhead obstructions, e.g. a
garage door, to avoid damage to
the tailgate. Always check the
moving area above and behind the
tailgate.
Notice
The installation of certain heavy
accessories onto the tailgate may
affect its ability to remain open.
Notice
At low outside temperatures the
tailgate may not open fully by itself.
In this event, lift the tailgate manually
to its normal end position.
Vehicle 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.