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34Keys, doors and windows
Switch off the monitoring of
passenger compartment and vehicle
inclination when animals are being
left in the vehicle, because of high
volume ultrasonic signals or
movements triggering the alarm. Also switch off when the vehicle is on a
ferry or train.
1. Close tailgate, bonnet, windows and sunroof.
2. Press button o. LED in the
button o illuminates for a
maximum of 10 minutes.
3. Close doors.
4. Activate the anti-theft alarm system.
Status message is displayed in the
Driver Information Centre.Status LED
Status LED is integrated in the sensor
on top of the instrument panel.
Status during the first 30 seconds of
anti-theft alarm system activation:
LED illuminates=test, arming delay.LED flashes
quickly=doors, tailgate or
bonnet not
completely closed,
or system fault.
Status 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 button c
deactivates anti-theft alarm system.
Electronic key system: Unlocking the
vehicle by pressing the button on any
exterior door handle deactivates anti-
theft alarm system.
The system is not deactivated when
unlocking the driver's door with the
key or with the central locking button
in the passenger compartment.
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Keys, doors and windows35
AlarmWhen 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.
The anti-theft alarm system can be
deactivated only by pressing the
button c or by pressing the switch on
the door handle (electronic key
system) 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 when the vehicle is unlocked
next time with the radio remote
control. Additionally a warning
message is displayed in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 119.
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 is 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 repeat 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 22,
3 33.Control indicator d 3 108.
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Keys, doors and windows37
Folding mirrors with remote
control This function is only available if the
vehicle is equipped with electrical
seat memory.
Press button e
again after locking for
one second to fold in mirrors.
Press button c again after unlocking
for one second to fold out mirrors.
Pressing for three seconds activates
window operation. Power windows
3 39. Sunroof 3 41.
If the mirrors were folded in using the
control in the driver's door, they are
not folded out by pressing button c.
This function can be activated or
deactivated in the Vehicle
personalisation.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 117.
Vehicle personalisation 3 121.
The settings are automatically stored
for the key being used 3 22.
Heated mirrors
Operated by pressing the Ü button.
The LED in the button indicates
activation.
Heating works with the engine
running and is switched off
automatically after a short time.
Automatic dimming Dazzling by following vehicles at nightis automatically reduced by dimming
both exterior mirrors.
Parking assist
For mirrors with position memory, the exterior mirror on the passenger side
is automatically aimed at the rear
tyres as a parking aid when reverse
gear is selected, except during trailer
operation.
Position memory 3 49.
Activation or deactivation of this
function can be changed in the menu Settings in the Info-Display. Vehicle
personalisation 3 121.
Page 42 of 321

40Keys, doors and windows
Child safety system for rearwindows
Press switch z to deactivate rear
door power windows; the LED
illuminates. To activate, press z
again.
Comfort operating with the
remote control The windows can be operated
remotely from outside the vehicle.
Press button c again for
three seconds after unlocking: all
windows will be opened.
Press button e again for
three seconds after locking: all
windows will be closed.
Press any button to stop window
movement.
Folding mirrors 3 36.
Closing sunroof 3 41.
Confirmation
Complete opening or closing of the
windows is confirmed by the hazard
warning flashers.
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 is displayed in the
Driver Information Centre.
Vehicle messages 3 119.
Activate the window electronics for
each window as following:
1. Close doors.
2. Switch on ignition.
3. Pull switch to the second detent until the window starts to close
and hold pulled for additional
4 seconds.
4. Push switch to the second detent until the window starts to open
automatically.
5. Repeat for each window.
Page 48 of 321

46Seats, restraintsFront seatsSeat position9 Warning
Only drive with the seat correctly
adjusted.
■ Sit with buttocks as far back against
the backrest as possible. Adjust the distance between the seat and the
pedals so that legs are slightly
angled when pressing the pedals.
Slide the front passenger seat as
far back as possible.
■ Sit with shoulders as far back against the backrest as possible.
Set the backrest rake so that it is possible to easily reach the
steering wheel with arms slightly bent. Maintain contact between
shoulders and the backrest when
turning the steering wheel. Do not
angle the backrest too far back. We recommend a maximum rake of
approx. 25°.
■ Adjust the steering wheel 3 85.
■ Set seat height high enough to have a clear field of vision on allsides and of all display instruments.
There should be at least one hand
of clearance between head and the
roof frame. Your thighs should rest
lightly on the seat without pressing
into it.
■ Adjust the head restraint 3 44.
■ Adjust the height of the seat belt 3 54.■ Adjust the thigh support so that
there is a space approx. two fingers
wide between the edge of the seat
and the hollow of the knee.
■ Adjust the lumbar support so that it
supports the natural shape of the
spine.
Seat adjustment9 Danger
Do not sit nearer than 25 cm from
the steering wheel, to permit safe
airbag deployment.
9 Warning
Never adjust seats while driving as
they could move uncontrollably.
Page 53 of 321

Seats, restraints51
Storing memory positions by buttons
1 and 2
■ Adjust driver's seat and then adjust
exterior mirrors to desired
positions.
■ Press and hold button MEM and
button 1 at the same time until a
beep sounds.
■ Repeat the steps for a second driver using button 2.
Recall of memory positions
Press and hold button 1 or 2 until the
stored seat and exterior mirror
positions have been reached.
Releasing the button during seat
movement cancels the recall.
Storing positions by remote control
Actual driver's seat and exterior
mirror positions are automatically
stored by the radio remote control key
each time the ignition is switched off.
These stored positions are
independent of the memory positions
stored by the buttons 1 or 2, see
above.
The stored positions are
automatically recalled by unlocking
and opening the driver's door with the
memorised radio remote control key.
If the door is already open, press
button c on remote control to activate
the recall.
To stop recall movement, press one
of the memory-, power mirror- or
power seat controls.This function can be activated or
deactivated in the Vehicle
personalisation.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 117.
Vehicle personalisation 3 121.
Easy exit function
For a convenient exit out of the
vehicle, the power driver seat moves
rearwards when vehicle is stationary.
To activate, switch off ignition,
remove key from the ignition switch
and open the driver's door. If the door
is already open, switch off ignition to
activate the recall.
To stop recall movement, press one
of the memory- or power seat
controls.
This function can be activated or
deactivated in the Vehicle
personalisation.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 117.
Vehicle personalisation 3 121.
Page 87 of 321
Instruments and controls85Instruments and
controlsControls ....................................... 85
Warning lights, gauges and indi‐ cators ........................................... 94
Information displays ...................110
Vehicle messages ...................... 119
Vehicle personalisation ..............121Controls
Steering wheel adjustment
Unlock lever, adjust steering wheel,
then engage lever and ensure it is fully locked.
Do not adjust steering wheel unless
vehicle is stationary and steering
wheel lock has been released.
Steering wheel controls
Driver Information Centre, some
driver assistance systems,
Infotainment system and a connected
mobile phone can be operated via the controls on the steering wheel.
Driver Information Centre 3 110.
Driver assistance systems 3 173.
Further information is available in the
Infotainment system manual.
Page 90 of 321
88Instruments and controls
Adjustable sensitivity of the rain
sensor
Turn the adjuster wheel to adjust the
sensitivity:
low sensitivity=turn adjuster
wheel downwardshigh sensitivity=turn adjuster
wheel upwards
Keep the sensor free from dust, dirt
and ice.
Rain sensor function can be activated or deactivated in the Vehicle
personalisation.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 117.
Vehicle personalisation 3 121.
Windscreen and headlight
washer
Pull lever. Washer fluid is sprayed
onto the windscreen and the wiper
wipes a few times.
If the headlights are on, washer fluid is also sprayed onto the headlights,
provided that the lever is pulled
sufficiently long. Afterwards the
headlight washer system is
inoperable for 5 wash cycles or until
engine or headlights have been
switched off and on again.