Page 30 of 235
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 hands-free operation, the
electronic key must be outside the
vehicle, within a range of approx.
1 m of the front doors or load
compartment.
Note
There is no button for hands-free
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 hands-free operation of the centrallocking system will not work.
Page 34 of 235

32Keys, doors and windowsDeactivation
With the engine running, press and hold e on the central locking switch for
approx. 5 seconds. An audible signal
confirms deactivation.
Central locking switch 3 26.
Child 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 handle towards the rear to
unlock and open from the inside.
The door can be locked from inside
the vehicle with the interior lock
switch.
Central locking system 3 26.
Page 39 of 235

Keys, doors and windows37Vehicle 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 doors and the load compartment.
All doors and the load compartment
must be closed or the system cannot
be activated.
Note
The anti-theft locking system cannot be activated when the hazard
warning lights or sidelights are
switched on.
Activation and deactivation are not possible with the central locking
switch.
Central locking system 3 26.
2-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 hands-free operation, the
electronic key must be outside the
vehicle, within a range of approx.
1 m of the front doors or load
compartment.
Press the button twice on any exterior
door handle.
- or -
Page 40 of 235

38Keys, doors and windows
Press e twice.
Deactivation
Unlock the doors by pressing the
button on any exterior door handle or
press c.
Hands-free operation is automatically
disabled when the electronic key
buttons have been operated (or the
central locking switch e is pressed).
To re-enable hands-free operation,
restart the engine.
Central locking system 3 26.
Electronic key system 3 23.
Anti-theft alarm system
The anti-theft alarm system is
operated in conjunction with the
central locking system 3 26.
It monitors: ● doors, rear 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 hands-free operation, the
electronic key must be outside the
vehicle, within a range of approx.
1 m of the front doors or load
compartment.
Page 41 of 235

Keys, doors and windows39
Press the button on any exterior door
handle.
- or -
Press e to activate the anti-theft alarm
system.
Electronic key system 3 23.
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.
Note
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
3 124.
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.
Alarm When 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.
Page 118 of 235
116LightingLoad compartment lighting
The lower load compartment lights
come on when the load compartment is opened.
Reading lights Front reading light
Operate rocker switch:
press 7:offpress l:on
Glove box lighting
The glovebox light comes on when
the glovebox is opened.
Lighting features
Entry lighting
Welcome lighting
Vehicle lights are switched on for a
short time to facilitate locating the
vehicle when it is dark.
Remote control operation
Lights switch on when unlocking the
vehicle with the remote control.
Electronic key system operation
Press t. Press again to switch off.
Exit lighting
If equipped, headlights come on for
approx. 30 seconds after the vehicle
is parked and the system is activated.
Activating 1. Switch off lights (position 7).
2. Switch off ignition.
3. Remove ignition key.
4. Open driver's door.
5. Pull stalk towards steering wheel.
A corresponding message may
appear in the Driver Information
Centre 3 103.
Page 126 of 235

124Climate controlSet the fan < to regulate the amount
of cooled air to be flown into the rear
passenger compartment.
Auxiliary heater Coolant heater
The engine-independent, fuel-
powered coolant heater provides
rapid heating of the engine coolant to
enable heating of the vehicle interior
without the engine running.9 Warning
Do not operate the system when
refuelling, when dust or
combustible vapours are present
or in enclosed spaces (e.g.
garage).
Before starting or programming the
system to start, turn the vehicle's
climate control system to heat, set the
air distribution to V and turn the fan
on.
Switch off when not required. Heating stops automatically after the
programmed runtime. It will also
cease to operate if the vehicle fuel
level drops too low.
During operation, power from the
vehicle battery is used. The driving
time should therefore be at least as
long as the heating time. For short
journey times, check the vehicle
battery regularly and recharge if
necessary.
To ensure efficient performance,
briefly operate the auxiliary heater
once a month.
Control units
The timer or remote control unit turns the system on and off, and is used to
programme specific departure times.Timer (Type A)1 Display:Displays preset, current
time or preset time,
temperature, Y and Ö2 l:Adjusts values up3 7:Long press: switch
heater on, short press:
turns display on or
confirms selection4 d:Long press: switch
heater off, short press:
turns display on or exit
menu5 k:Adjusts values down
Page 127 of 235

Climate control125Remote control (Type A)1 Display:Displays preset, current
time or preset time,
temperature, Z, Ü , Y
and Ö2 7:Long press: switch heater on,
short press: turns display on
or confirms selection3 l:Adjusts values up4 d:Long press: switch heater off,
short press: turns display on
or exit menu5 k:Adjusts values downIf no buttons are pressed within
ten seconds the display automatically
turns off.
Remote control (Type A) fault
displaysINIT:automatic detection –
wait until automatic
detection is finishedNO
SIGNAL:no signal –
check heater fuseZ:poor signal –
move closerÜ:battery low –
replace batteryY:heater fault –
consult workshopAdd, AddE:system in learning
mode
Teach remote control (Type A)
If the vehicle battery is reconnected, the LED in the instrument panel
button illuminates and the system
configures the remote control menu
automatically. If the LED flashes,
select Add or AddE and confirm.
Additional remote control units may
also be configured. Press the button
until LED flashes, switch on the
remote control, select Add and
confirm.
AddE teaches the current remote
control unit exclusively and blocks all
previously configured units. Add
teaches up to four remote control
units, but only one unit can operate
the system at any one time.
Remote control (Type B)1 Display:Displays preset, current
time or preset time,
temperature, Z, Ü , Y
and Ö