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24Keys, doors and windows
Locking
Insert key into the opening above the
lock on inside of the door and operate the lock by pressing until it clicks.
Then close the door. The procedure
must be carried out for each door. The driver's door can also be locked from
the outside with the key. The fuel filler
flap and the tailgate cannot be locked.
Automatic locking
Automatic locking after driving
off The vehicle is locked automatically
when exceeding a speed of 2 mph.
Opening from outside is not possible. Additionally, opening of the rear
doors from inside is not possible
when the vehicle speed is above
2 mph.
Green LEDs indicate that opening
from inside is possible:
Hold the inner rear door handle to
activate the proximity sensor and
then pull the handle.
When the vehicle speed is below
2 mph, opening of the doors from
outside is possible after:
■ opening any door from inside
■ pressing the central locking buttonCaution
Automatic locking is only active
with ignition on.
Fault in the automatic locking system
In case of a system fault, control
indicator ^ illuminates in the
instrument cluster and a warning
chime sounds to indicate that the rear
doors are not secured against
opening. Inform passengers to keep
clear of the door handles.
Stop immediately and activate the
child lock in both rear doors. If the
child lock is already activated, first
deactivate and then activate again.
The green LEDs will extinguish and
the warning chime will stop as soon
Page 29 of 247

Keys, doors and windows27Vehicle 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.
If the ignition was on, the driver's door
must be opened and closed once so
that the vehicle can be secured.
Unlocking the vehicle disables the
mechanical anti-theft locking system.
This is not possible with the central
locking button.
Activating
Press e on the radio remote control
twice within 10 seconds.
Anti-theft alarm system The anti-theft alarm system is
operated in conjunction with the
central locking system.
It monitors: ■ doors, tailgate, bonnet
■ ignition
Unlocking the vehicle deactivates the
anti-theft alarm system.
Status LED
Status LED is integrated in the central
locking button.
Status during the first 10 seconds of
anti-theft alarm system activation:
LED illuminates=test, arming delayLED flashes
quickly=doors, tailgate or
bonnet not
completely closed,
or system fault
Status after system is armed:
LED flashes
slowly=system is armed
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28Keys, doors and windows
Seek the assistance of a workshop inthe event of faults.
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 silenced by
pressing any button of the radio
remote control or by switching on the
ignition.
The anti-theft alarm system can be
deactivated only by pressing c or by
switching on the ignition.
A triggered alarm, which has not been
interrupted by the driver, will be
indicated by a warning message or a
warning code in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 105.
If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: switch theignition on then off, then disconnect
the vehicle's battery within
15 seconds.
Immobiliser The system is part of the ignition
switch and checks whether the
vehicle is allowed to be started with the key being used.
The immobiliser is activated
automatically after the key has been removed from the ignition switch.
If 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 then repeat the start attempt.
If control indicator d continues
flashing, attempt to start the engine
using the spare key and seek the
assistance of a workshop.
Notice
The immobiliser does not lock the
doors. You should always lock the
vehicle after leaving it and switch on the anti-theft alarm system 3 21,
3 27.Control indicator d 3 99.
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Keys, doors and windows31
Windscreen stickers
Do not attach stickers such as toll
road stickers or similar on the
windscreen in the area of the interior
mirror. Otherwise the detection zone
of the sensor and the view area of the camera in the mirror housing could be restricted.
Manual windows The door windows can be opened or
closed with the window cranks.
Power windows9 Warning
Take care when operating the
power windows. Risk of injury,
particularly to children.
If there are children on the rear seats, switch on the child safety
system for the power windows.
Keep a close watch on the
windows when closing them.
Ensure that nothing becomes
trapped in them as they move.
Power windows can be operated:
■ with ignition on
■ within 10 minutes of switching ignition off
■ within 5 minutes of opening or closing a door
After switching off the ignition,
window operation is disabled as soon
as the vehicle is locked with the radio remote control.
Operate the switch for the respective
window by pushing to open or pulling to close.
Pushing or pulling gently to the first
detent: window moves up or down as long as switch is operated.
Pushing or pulling firmly to the second
detent and then releasing: window
moves up or down automatically with
safety function enabled. To stop
movement, operate the switch once
more in the same direction.
Safety function
If the window glass encounters
resistance above the middle of the
window during automatic closing, it is
immediately stopped and opened again.
Override safety function
In the event of closing difficulties due
to frost or the like, switch on the
ignition, then pull the switch to the first
detent and hold. The window moves
up without safety function enabled.
To stop movement, release the
switch.
Page 34 of 247
32Keys, doors and windows
Child safety system for rearwindows
Press z to deactivate rear door
power windows, the LED illuminates.
To activate, press z again.
Operating windows from outside
The windows can be operated
remotely from outside the vehicle.
Press and hold c to open windows.
Press and hold e to close windows.
Release button to stop window
movement.
Overload If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Initialising the power windowsIf the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery), a
warning message or a warning code
is displayed in the Driver Information
Centre.
Vehicle messages 3 105.
Activate the window electronics as follows:
1. Close doors.
2. Switch on ignition.
3. Pull switch until the window is closed and keep pulling for
additional 2 seconds.
4. Repeat for each window.
Heated rear window
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Keys, doors and windows33
Operated by pressing Ü.
Heating works with the engine
running and is switched off
automatically after a short time.
Depending on the engine type, the
heated rear window comes on
automatically when the diesel particle filter is being cleaned.
Sun visors
The sun visors can be folded down or swivelled to the side to prevent
dazzling.
If the sun visors have integral mirrors, the mirror covers should be closed
when driving.
A ticket holder is located on the back
of the sun visor.Roof
Moonroof Do not affix any stickers to the roof.
Do not cover the vehicle using a
tarpaulin.
Sunblind The sunblind is electrically operated.
Press G or H gently to the first
detent: the sunblind is opened or
closed as long as the switch is
operated.
Press G or H firmly to the second
detent and then release: the sunblind
is opened or closed automatically. To stop movement, operate the switch
once more.
Safety function
If the sunblind encounters resistance
during automatic closing, it is
immediately stopped and opened again.
Function standby In ignition switch position 1 the
sunblind is operable 3 136.
Initialising after a power failure
After a power failure, it may only be
possible to operate the sunblind to a
limited extent. Have the system
initialised by your workshop.
Page 45 of 247
Seats, restraints43
Insert the hooks of the adapter into
the recesses of the seatback and
push the adapter forwards.
Lock the adapter by turning the
ignition key clockwise in the lock. The adapter is locked properly when the
green mark is visible.
Mount the armrest on the adapter.
Armrest 3 39.
Attaching the armrest to the
adapter
Press the front button and insert the
front guide pins into the guide rails. Move the armrest until it engages
audibly. Release the button.
Lower the armrest at the rear. Pull the rear handle firmly and insert the rear
guide pins into the guide rails.
Release the handle.
Notice
Install the armrest in the direction
shown in the illustration. Otherwise
the armrest may not engage
properly.
Removing the armrest Pull the rear handle firmly and raise
the armrest at the rear. Press the front
button and remove the armrest.
Page 46 of 247

44Seats, restraints
Removing the adapter
Unlock the adapter by turning the
ignition key anticlockwise in the lock.
The adapter is unlocked when the red mark is visible.
Push the adapter rearward and
remove.Seat belts
The seat belts are locked during
heavy acceleration or deceleration of
the vehicle holding the occupants in
the sitting position. Therefore the risk
of injury is considerably reduced.
9 Warning
Fasten seat belt before each trip.
In the event of an accident, people
not wearing seat belts endanger their fellow occupants and
themselves.
Seat belts are designed to be used by only one person at a time. Child
restraint system 3 54.
Periodically check all parts of the belt
system for damage, pollution and
proper functionality.
Have damaged components
replaced. After an accident, have the
belts and triggered belt pretensioners replaced by a workshop.
Notice
Make sure that the belts are not
damaged by shoes or sharp-edged
objects or are trapped. Prevent dirt
from getting into the belt retractors.
Seat belt reminder X 3 94.
Belt force limiters Stress on the body is reduced by the
gradual release of the belt during a
collision.
Belt pretensioners In the event of a head-on or rear-end
collision of a certain severity, the front
seat belts are tightened.