Page 28 of 341
26Keys, doors and windows3-door hatchback
Press x on radio remote control or
push the brand emblem at the bottom
half to unlock and open the tailgate.
Pressing 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 x on
the remote control for at least
2 seconds, or, to open from the inside, press x in the centre console; the
boot lid is opened slightly.
With the doors centrally locked, the
boot lid cannot be opened by pressing
x in the centre console.
Closing
Page 29 of 341

Keys, doors and windows27Use 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 30 of 341

28Keys, doors and windowsActivating
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 by pressing e
once.
● Directly by pressing e twice
briefly within five seconds.
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.
1. Close tailgate, bonnet, windows and sunroof.
2. Press o. LED in the button o
illuminates for a maximum of
10 minutes.
Page 31 of 341

Keys, doors and windows293. Close doors.
4. Activate the anti-theft alarm system.
Status message is displayed in the
Driver Information Centre (DIC).
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 delayLED flashes
quickly:doors, tailgate or
bonnet not
completely closed,
or system faultStatus 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 by pressing c
deactivates the anti-theft alarm
system.
The system is not deactivated by
unlocking the driver's door with the
key or with the central locking button
in the passenger compartment.
Alarm
When triggered, the alarm horn
sounds and the hazard warning lights flash simultaneously. The numberand 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 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 DIC after switching
on the ignition.
Vehicle messages 3 124.
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 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.
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30Keys, doors and windowsIf 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 28.
Control indicator d 3 117.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 82 of 341

80StorageLoad 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 37.
● 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
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
When folding up, ensure that
backrests are securely locked in
position before driving. Failure to
do so may result in personal injury
Page 84 of 341
82Storage
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 100 of 341

98Instruments and controlsInstruments and
controlsControls ....................................... 99
Steering wheel adjustment ........99
Steering wheel controls .............99
Heated steering wheel ...............99
Horn ......................................... 100
Windscreen wiper/washer .......100
Rear window wiper/washer .....102
Outside temperature ................102
Clock ....................................... 103
Power outlets ........................... 104
Cigarette lighter .......................105
Ashtrays .................................. 105
Warning lights, gauges and indi‐ cators ......................................... 106
Instrument cluster ....................106
Speedometer ........................... 106
Odometer ................................ 106
Trip odometer .......................... 106
Tachometer ............................. 106
Fuel gauge .............................. 107
Fuel selector ............................ 107
Engine coolant temperature gauge ..................................... 107
Service display ........................ 108Control indicators ....................109
Turn signal ............................... 112
Seat belt reminder ...................112
Airbag and belt tensioners .......112
Airbag deactivation ..................112
Charging system .....................113
Malfunction indicator light ........113
Service vehicle soon ...............113
Brake and clutch system .........113
Operate pedal .......................... 113
Electric parking brake ..............113
Electric parking brake fault ......114
Antilock brake system (ABS) ...114
Upshift ..................................... 114
Power steering ........................ 114
Lane departure warning ..........114
Ultrasonic parking assist .........115
Electronic Stability Control off . 115
Electronic Stability Control and Traction Control system .........115
Traction Control system off .....115
Preheating ............................... 115
Diesel particle filter ..................115
Tyre pressure monitoring system .................................... 116
Engine oil pressure ..................116
Low fuel ................................... 116
Immobiliser .............................. 117
Reduced engine power ...........117
Exterior light ............................ 117High beam............................... 117
High beam assist .....................117
Adaptive forward lighting .........117
Fog light ................................... 117
Rear fog light ........................... 117
Low washer fluid ......................117
Cruise control .......................... 117
Adaptive cruise control ............117
Vehicle detected ahead ...........118
Door open ................................ 118
Information displays ...................118
Driver Information Centre ........118
Graphic-Info-Display, Colour- Info-Display ............................ 122
Smartphone controller .............124
Vehicle messages ......................124
Warning chimes .......................127
Battery voltage ........................ 127
Trip computer ............................. 128
Vehicle personalisation ..............130
OnStar® system ........................135