Page 29 of 329
Keys, doors and windows27
Pressing button x opens the
tailgate even if the doors are locked.
Sports tourer
After unlocking, push the touchpad
switch under the tailgate moulding
and open the tailgate.
Central locking system 3 23.4-door saloon
To unlock the boot lid, press button
x on the remote control for at least
2 seconds, or, to open from the inside, press button x in the centre
console; the boot lid is opened
slightly.
With the doors centrally locked, the
boot lid cannot be opened with button
x in the centre console.
Page 30 of 329

28Keys, doors and windows
Closing
Use one of the interior handles.
Do not push the touchpad switch or
the emblem whilst closing as this will
unlock the tailgate again.
Central locking system 3 23.
General hints for operating
tailgate9 Danger
Do not drive with the tailgate open
or ajar, e.g. when transporting
bulky objects, since toxic exhaust
gases, which cannot be seen or
smelled, could enter the vehicle.
This can cause unconsciousness
and even death.
Caution
Before opening the tailgate check
overhead obstructions, such as a
garage door, to avoid damage to
the tailgate. Always check the
moving area above and behind the tailgate.
Notice
The installation of certain heavy
accessories onto the tailgate may
affect its ability to remain open.
Vehicle 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.
Page 31 of 329

Keys, doors and windows29
Activating
Press e on the radio remote control
twice within 15 seconds.
Anti-theft alarm system The anti-theft alarm system is
combined with the central locking
system.
It monitors: ■ Doors, tailgate, bonnet
■ Passenger compartment including adjoining load compartment
■ Vehicle inclination, e.g. if it is raised
■ Ignition
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
Notice
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.
Page 32 of 329

30Keys, doors and windows
1. Close tailgate, bonnet, windowsand 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 illu‐
minates=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
Unlocking the vehicle deactivates the
anti-theft alarm system.
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 alarm can be silenced by
pressing any button on the radio
remote control or by switching on the
ignition.
The anti-theft alarm system can be
deactivated only by pressing button
c or by 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 the next time the vehicle is
unlocked with the radio remote
control. Additionally a warning
message or a warning code is
displayed in the Driver Information
Centre after switching on the ignition.
Vehicle messages 3 126.
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.
Page 33 of 329

Keys, doors and windows31Immobiliser
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 the 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 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.
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 23,
3 29.
Control indicator d 3 118.Exterior 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
Select the relevant exterior mirror by
turning the control to left (L) or right
(R) . Then swivel the control to adjust
the mirror.
In position 0 no mirror is selected.
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.
Page 84 of 329

82StorageLoad compartmentThe rear seat backrest is divided into
two parts. Both parts can be folded
down.
Load compartment extension,
3-door and 5-door hatchback,
4-door saloon ■ Only 3-door and 5-door hatchback: remove the load compartment
cover if necessary.
■ Press and hold the catch to push the head restraints down 3 38.
■ Fold up the rear armrest.■ Guide the seat belts through side supports to protect them against
damage. When folding the
backrests, pull the seat belts along
with them.
■ Pull the release lever on one or both
sides and fold down the backrests
onto the seat cushion.
■ Take the seat belt out of the seat backrest guide and put it behind theretainer as shown in the illustration.
To fold up, raise the backrests and
guide them into an upright position
until they engage audibly.
Ensure that the seat belts of the
outboard seats are placed in the
corresponding belt guides.
The backrests are properly engaged
when the red marks on both sides near the release lever are no longer
visible.
9 Warning
When folding up, ensure that
backrests are securely locked in
position before driving. Failure to
do so may result in personal injury
Page 86 of 329
84Storage
If the vehicle is to be loaded via arear door, take the seat belt out of
the seat backrest guide and put it
behind the retainer (as shown in the illustration).
■ To fold up, raise the backrests and guide them into an upright position
until they engage audibly.
Ensure that the seat belts of the
outboard seats are placed in the corresponding belt guides.The backrests are properly engaged
when the red marks on both sides
near the release lever are no longer
visible.
9 Warning
Only drive the vehicle if the
backrests are securely locked into position. Otherwise there is a risk
of personal injury or damage to the
load or vehicle in the event of hard braking or a collision.
The seat belt of the centre seat could
be blocked when the backrest is
folded up too quickly. To unlock the
retractor, push in the seat belt or pull
it out by approx. 20 mm then release.
Page 136 of 329

134Instruments and controls
Vehicle settings
■Climate and air quality
Auto fan speed : Modifies the level
of the cabin airflow of the climate
control in automatic mode.
Climate control mode : Controls the
state of the cooling compressor
when the vehicle is started. Last
setting (recommended) or at
vehicle start either always ON or
always OFF.
Auto rear demist : Activates
automatically rear heated window.
■ Comfort settings
Chime volume : Changes the
volume of warning chimes.
Personalization by driver : Activates
or deactivates the personalisation
function.
Rear auto wipe in reverse :
Activates or deactivates
automatically switching on of the
rear window wiper when reverse
gear is engaged.
■ Park assist / Collision detection
Park assist : Activates or
deactivates the ultrasonic parking
assist.
Auto collision preparation :
Activates or deactivates the
automatic brake functionality of the
vehicle in the event of imminent
collision danger. The following is
selectable: the system will take
over brake control, warn by chimes only or is deactivated.
Side blind zone alert : Changes the
settings for the side blind spot alert
system.
■ Exterior ambient lighting
Duration upon exit of vehicle :
Activates or deactivates and
change the duration of exit lighting.
Exterior lighting by unlocking :
Activates or deactivates the
welcome lighting.
■ Power door locks
Auto door lock : Activates or
deactivates the automatic door
unlocking function after switching
off ignition. Activates or deactivates
the automatic door locking function after driving off.
Stop door lock if door open :
Activates or deactivates the