Page 25 of 233

Keys, doors and windows232-button and 3-button remote control
Remove screw and open battery
compartment by inserting a coin into
the slot and twisting.
Replace the battery (battery type
CR 2016), paying attention to the
installation position.
Reattach both halves of the cover,
ensuring they engage correctly.
Replace screw and tighten.
Electronic key
The need for battery replacement is
indicated by a message in the Driver
Information Centre 3 103.
Note
In an emergency, the vehicle can still be locked/unlocked using the
emergency manual key in the
housing of the electronic key
3 24.Press and hold the release button on
the side of the electronic key and pull out the emergency manual key from
the top. Unclip the battery cover
located on the rear of the electronic
key, then press one side of the battery
to release and remove the battery.
Replace the battery (battery type
CR 2016), paying attention to the
installation position.
Reattach battery cover and reinsert
the emergency manual key.
Electronic key synchronisation
Press any button on the electronic
key four times within range of the
detection zone (approx. one metre) of the front doors or load compartment.
The electronic key will be
synchronised when the ignition is
switched on.
Page 26 of 233

24Keys, doors and windowsElectronic key system
Enables a handsfree operation of thefollowing functions:
● central locking system 3 26
● load compartment 3 35
● ignition switching on and starting the engine 3 131
● anti-theft locking system 3 37
● anti-theft alarm system 3 38
The electronic key simply needs to be on the driver's person.
Note
Always take the electronic key with
you when exiting the vehicle.
The electronic key being left in the
card reader is indicated by a warning
chime 3 104 and a message in the
Driver Information Centre 3 103
when the driver's door is opened.
Additionally, the electronic key
includes the functionality of the
remote control 3 22 and an entry
lighting function 3 114.
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. The range of operation
for the electronic key buttons can be
restricted by external influences. The
hazard warning flashers confirm
operation.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Note
Do not put the electronic key in the
load compartment during driving, as
this is outside of the detection zone(indicated by a warning chime at low speed 3 104 and a message in the
Driver Information Centre 3 103).
Note
In the event the electronic key is kept
in the front passenger compartment
and a message appears in the Driver
Information Centre (possibly
accompanied by a warning chime)
indicating that it is out of reception
range, we recommend inserting the
electronic key in the card reader.
Note
If the electronic key is not detected
in the front passenger compartment
after opening and closing a door with the engine running, a messageappears in the Driver Information
Centre (accompanied by a warning
chime when a certain speed is
exceeded), indicating that it is out of
reception range.
This helps you avoid, e.g., driving off
after dropping off a passenger who
has the electronic key.
The message disappears when the
electronic key is detected again.
Page 27 of 233

Keys, doors and windows25Handsfree operation is automatically
disabled when the electronic key buttons have been operated or the
central locking switch e 3 26 is
pressed. To re-enable handsfree
operation, restart the engine.
Power button 3 131.
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 3 103.
Battery replacement, see 'Radio
remote control' 3 22.
Fault
If the central locking system cannot
be operated or the engine cannot be
started, the cause may be one of the
following:
● fault in electronic key
● electronic key out of reception range
● battery voltage 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
Emergency manual key
Press and hold the release button on
the side of the electronic key and pull out the emergency manual key from
the top.
Manually lock or unlock the doors by turning the key in the lock.
After use, reinsert the emergency
manual key in the housing of the
electronic key.
Door locks Anti-theft security lock
To prevent the doors from being
opened from the outside, open the
driver's door and engage the anti-
theft security lock.
Using a suitable tool, turn the lock
switch on the door to the locked
position. The doors/tailgate cannot be opened from outside.
Page 28 of 233

26Keys, doors and windowsThe anti-theft security lock remains
engaged even after unlocking the
vehicle with the remote control. The
doors/tailgate can only be opened
from inside or by using the manual
key.
Note
Depending on version, the tailgate
may remain unlocked when the anti-
theft security lock is engaged.
To disengage, turn the switch to the
unlocked position.
Rear door manual lockTurn the lock switch clockwise to lock
the left-hand rear door from inside the load compartment. To disengage
lock, turn the switch anticlockwise.
Rear doors 3 33.
Central locking system
Unlocks and locks the front doors,
sliding side doors and load
compartment.
With 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.
Note
If no door is opened within approx. two 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. The
hazard warning flashers flash once to
indicate the vehicle is unlocked, and twice to indicate the vehicle is locked.
Unlocking with 2-button remote
control
Depending on model and
configuration:
● Press and hold c to unlock all
doors and the load compartment.
Page 29 of 233
Keys, doors and windows27- 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 model and
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.
Locking 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.
Note
Where fitted, alarm monitoring of the passenger compartment 3 38 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.
Page 30 of 233
28Keys, doors and windowsLoad compartment locking and
unlocking with 2-button remote
control
Depending on model and
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).
Electronic key system operation
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.
Note
There is no button for handsfree
operation in the exterior door handle
of the sliding side door.
There must be no electronic key left
inside the vehicle and no additional
electronic key in the detection zones, or handsfree operation of the central
locking system will not work.
Page 31 of 233

Keys, doors and windows29Operation of central locking system
with the electronic key is confirmed by
the hazard warning flashers. The
hazard warning flashers flash once to
indicate the vehicle is unlocked, and twice to indicate the vehicle is locked.
When locking, if a door is open or
incorrectly closed, the central locking
system will lock and unlock in quick
succession without flashing the
hazard warning flashers.9 Danger
Never leave an electronic key
inside the vehicle when children or animals are left in the vehicle, to
avoid unintended operation of
windows, doors or engine. Risk of
fatal injury.
Unlocking with electronic key -
handsfree operation
Press the button on either front door
exterior handle to unlock, and pull the
handle to open.
For the rear doors/tailgate, press the
button on the exterior handle to
unlock, and pull the handle to open.
The vehicle only unlocks when at least three seconds have passed
since locking using handsfree
operation.
Handsfree operation is automatically
disabled when the electronic key buttons have been operated. To re-
enable handsfree operation, restart
the engine.
Page 32 of 233

30Keys, doors and windowsUnlocking with electronic key buttons
Press c to unlock all doors and the
load compartment.
Locking with electronic key -
handsfree operation
Press the button on any exterior door
handle. All doors and the load
compartment are locked.
The vehicle only locks when at least
three seconds have passed since
unlocking using handsfree operation.
Handsfree 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 three 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 buttons