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36Keys, doors and windows
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 89.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 30,
3 34.
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38Keys, doors and windowsHeated 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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Keys, doors and windows41
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 50 of 219
48Seats, restraintsSeat folding
Push the head restraint down.
Slide the seat backwards.
Raise release lever, fold backrest
forward and engage.
To restore the seat to the upright
position, raise release lever and
audibly engage backrest.
Armrest
Push raised armrest backward
against resistance and fold down.
The armrest can be moved to
different positions in stages by lifting
it.
Heating
Adjust heating to the desired setting
by pressing the ß button for the seat
one or more times with the ignition on. The control indicator in the button
indicates the setting.
Prolonged use of the highest setting
for people with sensitive skin is not
recommended.
Seat heating is operational when the
engine is running.
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82Instruments and controls
Set date and time inTriple-Info-Display
The Infotainment system must be off. Activate setting mode by holding the
Ö button depressed for about
2 seconds. The flashing value is
adjusted using the ; button. The Ö
button is used to switch to the next
mode and to exit setting mode.
Automatic time synchronisation
The RDS signal of most VHF
transmitters automatically sets the
time, identified by } in the display.
Some transmitters do not send a
correct time signal. In such cases, we
recommend to switch off automatic
time synchronisation.
Activate setting mode and set it to
year setting. Hold the Ö button
depressed about 3 seconds until }
flashes in the display and “RDS TIME" appears. The function is
activated (RDS TIME 1) or
deactivated (RDS TIME 0) with
the ; button. Exit setting mode using
the Ö button.
Power outlets
Power outlets are located in the
centre console and in the luggage
compartment.
Do not damage the power outlets by
using unsuitable plugs. Connecting
electrical accessories while the
engine is off will discharge the
battery. Do not exceed the maximum
Page 87 of 219
Instruments and controls85Tachometer
Displays the engine speed.
Drive in a low engine speed range for each gear as much as possible.
Caution
If the needle is in the red warning
zone, the maximum permitted
engine speed is exceeded. Engine at risk.
Fuel gauge
Displays the fuel level in the tank.
Control indicator Y illuminates if the
level in the tank is low. Refuel
immediately if it flashes.
Never run the tank dry.
Because of the fuel remaining in the
tank, the top-up quantity may be less
than the specified tank capacity.
Service display
The message InSP appears when it
is time for servicing. Further
information 3 193.
Control indicators
The control indicators described are
not present in all vehicles. The
description applies to all instrument
versions. When the ignition is
switched on, most control indicators
will illuminate briefly as a functionality test.
Page 90 of 219

88Instruments and controlsTurn signal
O illuminates or flashes green.
Illuminates The control indicator illuminates
briefly when the parking lights are
switched on. Parking lights 3 113.
Flashes
The control indicator flashes if a turn
signal or the hazard warning flashers
are activated.
Rapid flashing: failure of a direction
indicator lamp or associated fuse,
failure of direction indicator lamp on
trailer.
Bulb replacement 3 159. Fuses
3 166.
Turn signals 3 112.
Seat belt reminder X illuminates or flashes red.
Illuminates
After the ignition is switched on until
the seat belt is fastened.Flashes
After starting off until the seat belt is
fastened.
Fastening the seat belt 3 54.
Airbag and belt tensioners v illuminates red.
When the ignition is switched on, the
control indicator illuminates for
approx. 4 seconds. If it does not
illuminate, does not go out after
4 seconds or illuminates whilst
driving, there is a fault in the belt
tensioner or the airbag system. The
systems may fail to trigger in the event of an accident.
Deployment of the belt tensioners or
airbags is indicated by continuous
illumination of v.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Airbag system, belt tensioners 3 57,
3 53.
Charging system p illuminates red.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
Illuminates when the engine isrunning
Stop, switch off engine. Battery is not charging. Engine cooling may be
interrupted. In diesel engines, power
to the brake servo unit may be cut.
Seek the assistance of a workshop.
Malfunction indicator light Z illuminates or flashes yellow.
Illuminates when the ignition is
switched on and goes out shortly after
the engine starts.
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Instruments and controls89
Illuminates when the engine is
running 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 3 133, 3 137. 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 InSP4in the service display
Seek the assistance of a workshop for
draining the diesel fuel filter 3 102.
Flashes with switched on
ignition
Fault in the immobiliser system. The engine cannot be started 3 36.
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 fluidlevel is too low 3 157.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates after the ignition is
switched on if the parking brake is
applied 3 140.
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.