20Keys, doors and windowsKeys, doors and
windowsKeys, locks ................................... 20
Keys .......................................... 20
Radio remote control .................21
Electronic key system ................22
Memorised settings ...................25
Central locking system ..............25
Automatic locking ......................27
Child locks ................................. 28
Doors ........................................... 29
Load compartment ....................29
Vehicle security ............................ 34
Anti-theft locking system ...........34
Anti-theft alarm system ..............34
Immobiliser ................................ 36
Exterior mirrors ............................ 37
Convex shape ........................... 37
Electric adjustment ....................37
Folding mirrors .......................... 37
Heated mirrors ........................... 38
Automatic dimming ....................38
Parking assist ............................ 39Interior mirrors............................. 39
Manual anti-dazzle ....................39
Automatic anti-dazzle ................39
Windows ...................................... 40
Windscreen ............................... 40
Power windows ......................... 40
Heated rear window ..................42
Heated windscreen ....................42
Sun visors .................................. 42
Roof ............................................. 43
Sunroof ...................................... 43Keys, locks
Keys Replacement keys
The key number is specified on a
detachable tag.
The key number must be quoted
when ordering replacement keys as it
is a component of the immobiliser system.
Locks 3 279.
Central locking 3 25.
Starting the engine 3 160.
Radio remote control 3 21.
Electronic key 3 22.
The code number of the adapter for
the locking wheel nuts is specified on
a card. It must be quoted when
ordering a replacement adapter.
Wheel changing 3 271.
Replacing battery Replace the battery as soon as the
system no longer operates properly
or the range is reduced. The need for
Keys, doors and windows21battery replacement is indicated by a
message in the Driver Information
Centre 3 123.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
To replace:
1. Press button at the back of the electronic key unit and extract thekey blade from the housing.
2. Insert the key blade again for approx. 6 mm and turn the key to
open the housing. Further
insertion of the key blade can
damage the housing.
3. Remove and replace battery. Use
CR 2032 or equivalent battery.
Pay attention to the installation
position.
4. Close the housing and insert key blade.
Radio remote control
Enables operation of the following
functions via the use of the remote control buttons:
● central locking system 3 25
● anti-theft locking system 3 34
● anti-theft alarm system 3 34
● power windows 3 40
● sunroof 3 43
The remote control has a range of up
to 100 m, but may also be much less
due to external influences. The
hazard warning flashers confirm
operation.
22Keys, doors and windowsHandle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Fault
If the central locking system cannot
be operated with the radio remote
control, the cause may be one of the
following:
● Fault in radio remote control.
● The range is exceeded.
● The battery voltage is too low.
● Frequent, repeated operation of the radio remote control while notin range, which will require re-
synchronisation.
● 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.
Manual unlocking 3 25.Electronic key system
Enables a keyless operation of the
following functions:
● central locking system 3 25
● switching on ignition and starting the engine 3 160
The electronic key simply needs to be on the driver's person.
Additionally, the electronic key
includes the functionality of the radio
remote control:
● central locking system
● anti-theft alarm system
● power windows
The hazard warning flashers confirm
operation.
Handle the device with care, protect
from moisture and high temperatures
and avoid unnecessary operation.
Note
Do not put the electronic key in the
load compartment.
Electronic key system operation
The electronic key must be outside
the vehicle, within a range of approx.
1 m of the relevant door side.
24Keys, doors and windowsUnlocking and opening the power
tailgate
The power tailgate can be unlocked and opened hands-free by moving
the foot below the rear bumper.
Alternatively, press the button switch
under the brand emblem. The
electronic key has to be in range. The doors remain locked.
Load compartment 3 29.
Operation with buttons on the
electronic key
The central locking system can also
be operated with the buttons on the
electronic key.
Unlocking
Press c.
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
pressing c once.
● Only the driver's door and fuel filler flap will be unlocked by
pressing c once. To unlock all
doors and load compartment,
press c twice.
Select the relevant setting in Settings
I Vehicle in the Info Display.
Info Display 3 118.
Vehicle personalisation 3 124.
The setting can be saved for the key
being used.
Memorised settings 3 25.Locking
Close doors, load compartment and
fuel filler flap.
Press e.If the driver's door is not closed
properly, the central locking system will not work.
Passive locking
Automatic locking 3 27.
Confirmation
Operation of central locking system is
confirmed by the hazard warning
flashers. A precondition is that the
setting is activated in the vehicle
personalisation 3 124.
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.
26Keys, doors and windows
Press e to lock.
Press c to unlock.
Operation with the key in case of
a central locking system fault
In case of a fault, e.g. vehicle battery
or electronic key battery is
discharged, the driver's door can be
locked or unlocked with the key blade.Push the button on the electronic key
and pull out the key blade.
The lock cylinder in the driver's door is covered by a cap.
Insert the key blade into the recess at the bottom of the cap and swivel the
key upward.
Manual unlocking
Manually unlock the driver's door by
inserting and turning the key blade in
the lock cylinder.
The other doors can be opened by
pulling the interior handle twice or by
pressing c in the driver's door panel.
The load compartment and fuel filler
flap will possibly not be unlocked.
By switching on the ignition, the anti-
theft locking system is deactivated.
Keys, doors and windows33The tailgate can only be held open if
a minimum height is exceeded
(minimum opening angle from 30°).
The opening height cannot be
programmed below that height.
Safety function
If the power tailgate encounters an
obstacle during opening or closing,
the direction of movement will
automatically be reversed slightly.
Multiple obstacles in one power cycle
will deactivate the function. In this
case, close or open the tailgate
manually.
The power tailgate has pinch sensors
on the side edges. If the sensors
detect obstacles between tailgate and chassis, the tailgate will open, until it
is activated again or closed manually.
The safety function is indicated by a
warning chime.
Remove all obstacles before
resuming normal power operation.
If the vehicle is equipped with factory- fitted towing equipment and a trailer
is electrically connected, the power
tailgate can only be operated
manually.Overload
If the power tailgate is repeatedly
operated at short intervals, the
function is disabled for some time.
Move tailgate manually into end
position to reset the system.
General hints for operating
tailgate9 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.
Note
The installation of certain heavy
accessories onto the tailgate may
affect its ability to remain open.
Note
The operation of the power tailgate
is disabled under low vehicle battery
conditions. In this case, the tailgate
may not even be manually operable.
Note
With the power tailgate disabled and
all doors unlocked, the tailgate can
only be operated manually. In this
event, manually closing the tailgate
requires significantly greater force.
Note
At low outside temperatures the
tailgate may not open fully by itself.
In this event, lift the tailgate manually
to its normal end position.
36Keys, doors and windowsStatus after system is armed:LED flashes
slowly:system is armed
Seek the assistance of a workshop in the event of faults.
Deactivation Radio remote control: Unlocking the
vehicle by pressing c deactivates the
anti-theft alarm system.
Electronic key system: Unlocking the
vehicle by pressing the button on any
exterior door handle deactivates the
anti-theft alarm system.
The electronic key must be outside
the vehicle, within a range of approx. 1 m of the relevant door side.
The system is not deactivated by
unlocking the driver's door manually
or with the central locking button in
the passenger compartment.
Alarm
When triggered, the alarm horn
sounds and the hazard warning lights flash simultaneously. The number
and duration of alarm signals are
stipulated by legislation.
The alarm can be deactivated by
pressing c on the key, by pressing the
switch on the door handle or
switching on the ignition.
A triggered alarm, which has not been interrupted by the driver, will be
indicated by the hazard warning
lights. They will flash quickly three
times the next time the vehicle is
unlocked with the remote control or
electronic key. Additionally, a warning
message is displayed in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 123.If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: switch the
ignition on then off, then disconnect
the vehicle's battery within
15 seconds.
Immobiliser
The immobiliser is activated
automatically.
If the control indicator d flashes when
the ignition is on, there is a fault in the
system; the engine cannot be started. Switch off the ignition and repeat the
start attempt. Retry with the key in the transmitter pocket. Operation on
vehicles with electronic key system in case of failure 3 159.
If the control indicator d continues
flashing, attempt to start the engine
using the spare key.
Seek the assistance of a workshop.
42Keys, doors and windowsInitialising the power windowsIf the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery), a
warning message is displayed in the
Driver Information Centre.
Vehicle messages 3 123.
Activate the window electronics as
follows:
1. Close doors.
2. Switch on ignition.
3. Pull the switch until the window is closed and keep pulling for
additional 2 seconds.
4. Push the switch until the window is completely open and keep
pushing for additional 2 seconds.
5. Repeat for each window.Heated rear window
Heating of rear window and exterior
mirrors is operated by pressing b.
LED in button illuminates.
Heating works with the engine
running and is switched off
automatically after a short time.
Heated windscreen
Operated by pressing ,. LED in
button illuminates.
Heating works with the engine
running and is switched off
automatically after a short time.
Pressing , once more during the
same ignition cycle allows the heating to operate for another three minutes.
Sun visors The sun visors can be folded down or
swivelled to the side to prevent
dazzling.