Page 37 of 277

Keys, doors and windows35Vehicle 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.
Unlocking the vehicle disables the
mechanical anti-theft locking system.
This is not possible with the central
locking button.
Activating
Press N on the radio remote control
twice within 5 seconds.
Anti-theft alarm system
The anti-theft alarm system is
combined with the anti-theft locking
system.
It monitors: ● doors, tailgate, bonnet
● passenger compartment including adjoining load
compartment
● vehicle inclination, e.g. if it is raised
● ignition
Activation
All doors, the load compartment and the engine compartment must be
closed and the electronic key must
not remain in the vehicle.
● Radio remote control: self- activated 45 seconds after
locking the vehicle by pressing e
once.
● Electronic key system: self- activated 45 seconds after
locking the vehicle by pressing with a finger or thumb on one of
the front door handles at the
markings.
If a door, the tailgate or the bonnet is
not properly closed, the vehicle is not locked. However, the anti-theft alarm
is self-activated after 45 seconds.
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Keys, doors and windows37AlarmWhen triggered, the alarm siren
sounds 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 by pressing c, by
pressing on one of the front door
handles at the markings with
electronic key system or switching on
the ignition.
A triggered alarm, which has not been interrupted by the driver, will be
indicated by the LED in the button
o . The LED will flash quickly the
next time the vehicle is unlocked with the radio remote control.
If the battery has been reconnected
(e.g. after maintenance work), wait for
10 minutes to restart the engine.
Fault
If the LED in the button o
illuminates permanently when
switching on the ignition, seek the
assistance of a workshop.Locking the vehicle without
activation of the anti-theft alarm
Lock the vehicle by locking the
driver's door with the integral key.
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.
Note
Radio Frequency Identification
(RFID) tags may cause interference with the key. Do not have it placednear the key when starting the
vehicle.
Note
The immobiliser does not lock the doors. Always lock the vehicle after
leaving it 3 24 and switch on the anti-
theft alarm system 3 35.Exterior mirrors
Convex shape The shape of the mirror makes
objects appear smaller, which will
affect the ability to estimate
distances.
Side blind spot alert 3 182.
Electric adjustment
Select the relevant exterior mirror by
pushing the mirror button to the left or right.
Then swivel the control to adjust the
mirror.
Page 40 of 277
38Keys, doors and windowsFolding 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.
Electric folding
Pull mirror button rearwards. Both
exterior mirrors will fold.
Pull mirror button rearwards again to return both exterior mirrors to their
original position.
If an electrically folded mirror is
manually extended, pulling mirror
button rearwards will only electrically
extend the other mirror.
Heated mirrors
Operated by pressing b.
Heating works with the engine
running and is switched off
automatically after a short time.
Heated rear window 3 41.
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Keys, doors and windows41
Press and hold e to close windows.
Release button to stop window
movement.
If the windows are fully closed, the
hazard warning lights will flash twice.
Overload
If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Initialising the power windows
If 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 3 104.
Activate the window electronics as follows:
1. Close doors.
2. Switch on ignition.
3. Pull switch until the window is closed and keep pulling for
additional 2 seconds.
4. Push switch until the window is completely open and keep
pushing for additional 2 seconds.
5. Repeat for each window.
Heated rear window Operated by pressing b together with
heated exterior mirrors.
Heating works with the engine
running and is switched off
automatically after a short time.Depending on climate control system, b is located at a different position.
Vehicles with heating and
ventilation system or air
conditioning system
Page 44 of 277
42Keys, doors and windowsVehicles with electronic climate
control system
Heated windscreen
Operated by pressing ,. LED in
button illuminates.
Heating works with the engine
running and is switched off
automatically after a short time.
Depending on climate control
system, , is located at a different
position.
Vehicles with electronic climate
control system
Vehicles with air conditioning
system
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.
A ticket holder is located on the
backside of the sun visor.
Roller blinds
To reduce sunlight at the second row seats, pull the blind upwards using
the grip and engage it at the top of the
door frame.
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50Seats, restraintsArmrest
The armrest can be slid forwards by
10 cm. Pull the handle to slide the
armrest. Under the armrest there is a storage compartment.
Heating
Adjust heating to the desired setting
by pressing ß for the respective seat
one or more times. 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
engine is running and during an
Autostop.
Stop-start system 3 139.
Ventilating
Activate ventilation by pressing A for
the respective front seat.
Ventilated seats are operational when
engine is running and during an
Autostop.
Stop-start system 3 139.
Page 53 of 277
Seats, restraints51Rear seats
Armrest
Fold armrest down. The armrest
contains cupholders.
Heating
Adjust seat heating by turning thumb
wheel ß for the respective rear outer
seat to the desired setting.
Prolonged use of the highest setting
for people with sensitive skin is not
recommended.
Seat heating is operational when engine is running and during an
Autostop.
Seat belts
The seat belts are locked during
heavy acceleration or deceleration of
the vehicle, holding the occupants in
the seat position. Therefore the risk of injury is considerably reduced.
9 Warning
Fasten seat belt before each trip.
In the event of an accident, people
not wearing seat belts endanger their fellow occupants and
themselves.
Page 80 of 277

78Instruments and controlsInstruments and
controlsControls ....................................... 79
Steering wheel adjustment ........79
Steering wheel controls .............79
Heated steering wheel ...............79
Horn ........................................... 80
Windscreen wiper and washer ..80
Rear window wiper and washer ...................................... 82
Outside temperature ..................82
Clock ......................................... 83
Power outlets ............................. 84
Inductive charging .....................86
Cigarette lighter ......................... 86
Ashtrays .................................... 87
Warning lights, gauges and indi‐ cators ........................................... 87
Instrument cluster ......................87
Speedometer ............................. 90
Odometer .................................. 90
Trip odometer ............................ 90
Tachometer ............................... 90
Fuel gauge ................................ 91
Engine coolant temperature gauge ....................................... 91Engine oil level monitor.............91
Service display .......................... 92
Control indicators ......................92
Turn lights .................................. 93
Seat belt reminder .....................93
Airbag and belt tensioners .........93
Airbag deactivation ....................94
Charging system .......................94
Malfunction indicator light ..........94
Service vehicle soon .................94
Stop engine ............................... 95
System check ............................ 95
Brake and clutch system ...........95
Electric parking brake ................95
Electric parking brake fault ........95
Antilock brake system (ABS) .....96
Gear shifting .............................. 96
Lane departure warning ............96
Lane keep assist .......................96
Electronic Stability Control and Traction Control system ...........96
Engine coolant temperature ......96
Preheating ................................. 97
Exhaust filter .............................. 97
AdBlue ....................................... 97
Deflation detection system ........97
Engine oil pressure ....................97
Low fuel ..................................... 98
Autostop .................................... 98
Exterior light .............................. 98Low beam.................................. 98
High beam ................................. 98
High beam assist .......................98
LED headlights .......................... 98
Front fog lights ........................... 99
Rear fog light ............................. 99
Rain sensor ............................... 99
Cruise control ............................ 99
Adaptive cruise control ..............99
Vehicle detected ahead .............99
Side blind spot alert ...................99
Active emergency braking .........99
Speed limiter ........................... 100
Door open ................................ 100
Displays ..................................... 100
Driver Information Centre ........100
Info Display .............................. 102
Vehicle messages ......................104
Warning chimes .......................104
Battery voltage ........................ 104
Vehicle personalisation ..............105
Telematics service .....................108
OnStar ..................................... 108