Page 39 of 217

Keys, doors and windows37
During the first 10 seconds of anti-
theft alarm system activation:LED illu‐
minates=Test, ignition delay,LED
flashes
quickly=Door, load
compartment or bonnet open, or system fault.
After the first 10 seconds of anti-theft
alarm system activation:
LED flashes
slowly=System active,LED comes on for
approx. 1 second=Switch off
function.
Seek the assistance of a workshop in
the event of faults.
Deactivation
Unlocking the vehicle deactivates the
anti-theft alarm system.
Alarm
When triggered, the alarm gives off
an acoustic signal (horn) and a visual signal (hazard warning flashers). The
number and duration of which are
stipulated by legislation.
The alarm siren can be silenced by
pressing a button of the radio remote
control or by switching on the ignition.
The anti-theft alarm system can be
deactivated only by pressing button
p or by switching on the ignition.
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 system checks whether the
vehicle is allowed to start with the key being used. If the transponder in the
key is recognised, the engine can be
started.
The immobiliser is going to be
activated automatically after the key
has been removed from the ignition
switch or when the engine is switched
off by pressing the Start/Stop button.
Control indicator A 3 88.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 31,
3 35.
Page 40 of 217
38Keys, doors and windowsExterior mirrors
Convex shape
The convex exterior mirror contains
an aspherical area and reduces blind spots. The shape of the mirror makes
objects appear smaller, which will
affect the ability to estimate
distances.
Electric adjustment
First select the relevant exterior mirrorthen swivel the control to adjust.
Folding mirrors
For pedestrian safety, the exterior
mirrors will swing out of their normal
mounting position if they are struck
with sufficient force. Reposition the mirror by applying slight pressure tothe mirror housing.
Manual folding
The exterior mirrors can be folded in
by pressing gently on the outer edge
of the housing.
Electric folding
Press the n button and both exterior
mirrors will fold.
Press button n again - both exterior
mirrors return to their original position.
If an electrically folded mirror is
manually extended, pressing the n
button will only electrically extend the
other mirror.
Page 41 of 217
Keys, doors and windows39Heated mirrors
Operated by pressing the Ü button.
Heating functions with the engine running and is switched off
automatically after a short time.
Interior mirrors
Manual anti-dazzle
To reduce dazzle, adjust the lever on the underside of the mirror housing.
Automatic anti-dazzle
Dazzle from following vehicles at
night is automatically reduced.
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40Keys, doors and windowsWindows
Windscreen
Heat-reflecting windscreen
The heat-reflecting windscreen has a
coating which reflects solar radiation. Also data signals, e.g. from toll
stations, might be reflected.
The marked areas on the windscreen are not covered with the coating.
Devices for electronic data recording
and fee payment must be attached in
these areas. Otherwise data
recording malfunctions may occur.
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 winders.
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 5 minutes of switching ignition off,
■ within 5 minutes of switching ignition key to position 1.
After switching off the ignition, the
standby feature ceases when the
driver's door is opened.
Page 43 of 217
Keys, doors and windows41
Operate the control to open or close
the window.
For vehicles with automatic feature
pull or press the switch again to stop
window movement.
Safety function
If the window glass encounters
resistance above the middle of the window during automatic closing, it is
immediately stopped and the window opened again.
In the event of closing difficulties due
to frost or the like, operate the switch
several times to close the window in
stages.Child safety system for rear
windows
Switch z can be used to activate or
deactivate the switches in the rear
doors.
Operating windows from outside
The windows can be operated
remotely from outside the vehicle.
Radio remote control
Press q or p until all windows have
opened or closed.
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42Keys, doors and windows
Electronic key
To close, touch the sensor field in the
door handle until all windows are
completely closed.
The electronic key must be outside
the vehicle, within a range of approx. 1 metre.
Overload If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Fault
If the windows cannot be opened or
closed automatically, activate the window electronics as follows:
1. Close doors.
2. Switch on ignition.
3. Close the window completely and
operate the button for a further
5 seconds.
4. Open the window completely and operate the button for a further
1 second.
5. Repeat for each window.
Heated rear windowOperated by pressing the Ü button.
Heating functions 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.
Page 45 of 217
Keys, doors and windows43Roof
Moonroof Do not affix any stickers to the middle
part of the roof. Do not cover the
vehicle using a tarpaulin.
Sunblind The sunblind is electrically operated.
Press button G to open and H to
close. Press and hold the button to
close completely.
Page 90 of 217

88Instruments and controls
Illuminates when the engine isrunning
Fault in the emission control system.
The permitted emission limits may be
exceeded. Immediately seek the
assistance of a workshop.
Flashes when the engine is
running
Fault that could lead to catalytic
converter damage. Ease up on the
accelerator until the flashing stops.
Seek the assistance of a workshop
immediately.
Service vehicle soon A illuminates or flashes yellow.
Illuminates when the engine is running
Fault in engine or transmission
electronics 3 132, 3 136. The
electronics switch to an emergency running programme. Fuel
consumption may be increased and
the vehicle handling may be impaired.If the fault persists after restarting the vehicle, consult a workshop.
Illuminates together with InSP4
in the service display
Seek the assistance of a workshop for
draining the diesel fuel filter 3 101.
Flashes with switched on
ignition
Fault in the immobiliser system. The
engine cannot be started 3 37.
Switch off the ignition and repeat the
start attempt.
If the control indicator continues
flashing, attempt to start the engine
using the spare key and seek the
assistance of a workshop.
Brake and clutch system R illuminates or flashes red.
Illuminated Illuminates when the parking brake is
released if the brake and clutch fluid
level is too low 3 155.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates after the ignition is
switched on if the parking brake is
applied 3 139.
Flashes
On vehicles with manual transmission
automated, flashes for a few seconds
when the ignition is switched off if the parking brake is not applied.
On vehicles with manual transmission
automated, flashes when the driver's
door is opened if no gear is engaged
and the parking brake is not applied.
Antilock brake system
(ABS) u illuminates red.
Illuminates for a few seconds after the ignition is turned on. The system is
ready for operation when the control indicator goes out.