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22In brief
If the vehicle is on a downhill slope,
engage reverse gear or set the
selector lever to P before switching
off the ignition. Turn the front
wheels towards the kerb.
■ Lock the vehicle with button e on
the radio remote control.
Activate the anti-theft alarm system
3 30.
■ Do not park the vehicle on an easily
ignitable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Close the windows and the sunroof.
■ The engine cooling fans may run after the engine has been switchedoff 3 225.
■ After running at high engine speeds
or with high engine loads, operate
the engine briefly at a low load or
run in neutral for
approx. 30 seconds before
switching off, in order to protect the
turbocharger.
Keys, locks 3 23, Laying the vehicle
up for a long period of time 3 224.
Page 25 of 331
Keys, doors and windows23Keys, doors and
windowsKeys, locks ................................... 23
Doors ........................................... 28
Vehicle security ............................ 30
Exterior mirrors ............................ 33
Interior mirrors ............................. 34
Windows ...................................... 35
Roof ............................................. 38Keys, locks
Keys Replacement keys
The key number is specified in the
Car Pass or on a detachable tag.
The key number must be quoted
when ordering replacement keys as it
is a component of the immobiliser
system.
Locks 3 280.
Key with foldaway key sectionPress button to extend. To fold the
key, first press the button.
Car Pass The Car Pass contains security
related vehicle data and should
therefore be kept in a safe place.
When the vehicle is taken to a
workshop, this vehicle data is needed
in order to perform certain operations.
Radio remote control
Page 26 of 331

24Keys, doors and windows
Used to operate:■ Central locking system
■ Anti-theft locking system
■ Anti-theft alarm system
■ Power windows
■ Sunroof
The radio remote control has a range of approx. 20 metres. It can be
restricted by external influences. The
hazard warning flashers confirm
operation.
Handle 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, it may be due to the following:
■ Range exceeded
■ Battery voltage too low
■ Frequent, repeated operation of the
radio remote control while not in 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
Unlocking 3 25.
Basic settings Some settings can be changed in the menu Settings in the Info-Display.
Vehicle personalisation 3 134.
Radio remote control battery replacement
Replace the battery as soon as the
range reduces.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Key with foldaway key section
Extend the key and open the unit.
Replace the battery (battery type CR 2032), paying attention to the
installation position. Close the unit
and synchronise.
Radio remote controlsynchronisation
After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control is
synchronised by switching on the
ignition.
Page 33 of 331

Keys, doors and windows31
Activation■ Self-activated 30 seconds after locking the vehicle (initialisation of
the system)
■ Directly by pressing e on the radio
remote control once more after
locking
Note
Changes to the vehicle interior such
as the use of seat covers, and open
windows or sunroof, could impair the
function of passenger compartment
monitoring.Activation without monitoring of
passenger compartment and vehicle inclination
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.
Page 40 of 331

38Keys, doors and windowsRoof
Sunroof9 Warning
Take care when operating the
sunroof. Risk of injury, particularly to children.
Keep a close watch on the
movable parts when operating
them. Ensure that nothing
becomes trapped in them as they
move.
Switch on ignition to operate the sunroof.
Open or close
Press p or r gently to the first
detent: sunroof is opened or closed
with safety function enabled as long
as the switch is operated.
Press p or r firmly to the second
detent and then release: the sunroof
is opened or closed automatically
with safety function enabled. To stop
movement, operate the switch once
more.
Raise or close
Press q or r : sunroof is raised or
closed automatically with safety
function enabled.
If the sunroof is raised, it can be
opened in one step by pressing p.
Sunblind
The sunblind is manually operated.
Close or open the sunblind by sliding. When the sunroof is open, the
sunblind is always open.
General hints Safety function
If the sunroof encounters resistance
during automatic closing, it is
immediately stopped and opened
again.
Override safety function
In the event of closing difficulties,
e.g. due to frost, hold the switch r
pressed to the second detent. The
sunroof closes with safety function
disabled. To stop movement, release the switch.
Page 41 of 331
Keys, doors and windows39
Closing sunroof from outside
The sunroof can be closed remotely
from outside the vehicle.
Press and hold e button to close the
sunroof.
Release the button to stop the
movement.
Initialising after a power failure
After a power failure, it may only be possible to operate the sunroof to a
limited extent. Have the system
initialised by your workshop.
Glass panel
Panorama roof
Turn the handle and move the roof
cover to a suitable position.
The roof cover engages in position
after releasing the handle.
Note
Close the sun visors before sliding
the roof lining.
Page 44 of 331

42Seats, 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 3 102.
■ 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 40.
■ Adjust the height of the seat belt 3 50.■ 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 47 of 331
Seats, restraints45
Side bolster, OPC version
Adjust seat width and backrest width
using the switches to suit personal
requirements.
Operate front rocker switch to change seat width.
Operate rear rocker switch to change
backrest width.
Seat foldingCaution
When seat height is in highest
position, push head restraints
down and lift up sun visors before
folding backrest forwards.
Seat folding on manual
operated seats
Lift release lever and fold backrest
forwards. Slide seat forwards.
To restore, slide the seat backwards.
Move the backrest against the
resistance to the upright position and
engage.
The memory function allows the seat
to engage in its original position.
Do not operate backrest inclination
lever while backrest is tilted forward.
Vehicles with panorama roof: to tilt
backrest forward, push head
restraints down and lift up sun visors.
The illustration shows the release
lever on OPC seat.