Page 33 of 253

Keys, doors and windows31Notice
Changes to the vehicle interior, e.g.
the use of seat covers, and open
windows, could impair the function
of passenger compartment
monitoring.
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
Radio remote control: Unlocking the
vehicle by pressing c deactivates the
anti-theft alarm system.
Electronic key system: Unlocking the
vehicle by pressing the button on any exterior door handle deactivates the
anti-theft alarm system.
The electronic key must be outside
the vehicle, within a range of approx. 1 m of the relevant door side.
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 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 by pressing e or
switching on the ignition.
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.
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.
Page 35 of 253
Keys, doors and windows33Electric folding
Turn control to 0, then push the
control backwards. Both exterior
mirrors will fold in.
Push the control backwards again -
both exterior mirrors return to their
original position.
Heated mirrors
Operated by pressing Ü.
Heating functions with the engine running and is switched off
automatically after a short time.
Interior mirrors
Manual anti-dazzle
To reduce dazzle, adjust the lever on the underside of the mirror housing.
Page 38 of 253

36Keys, doors and windowsInitialising the power windowsIf the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery),
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 two seconds.
4. Repeat for each window.
Heated rear window
Operated by pressing Ü.
The LED in the button indicates
activation.
Heating works with the engine
running and is switched off
automatically after a short time.
Sun visors The sun visors can be folded down or
swivelled to the side to prevent
dazzling.
The sun visors mirror covers should
be closed when driving.
If the sun visors have a vanity mirror
lamp, the lamp will illuminate when
opening the vanity mirror cover.Roof
Sunroof9 Warning
Take care when operating the
sunroof. Risk of injury, particularly to children.
Keep a close eye on the movable parts when operating them.
Ensure that nothing becomes
trapped in them as they move.
Switch on ignition to operate the
sunroof.
Page 44 of 253
42Seats, restraintsLumbar support
Adjust lumbar support using the four-way switch to suit personal
requirements.
Moving support up and down: push switch up or down.
Increasing and decreasing support:
push switch forwards or backwards.
Adjustable thigh support
Pull the lever and slide the thigh
support.
Heating
Adjust heating to the desired setting
by pressing ß for the respective seat
one or more times. The LED 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 3 138.
Page 77 of 253

Instruments and controls75Instruments and
controlsControls ....................................... 76
Steering wheel adjustment ........76
Steering wheel controls .............76
Heated steering wheel ...............76
Horn ........................................... 77
Windscreen wiper and washer ..77
Rear window wiper and washer ...................................... 79
Outside temperature ..................79
Clock ......................................... 80
Power outlets ............................. 82
Warning lights, gauges and indi‐ cators ........................................... 83
Speedometer ............................. 83
Odometer .................................. 83
Trip odometer ............................ 83
Tachometer ............................... 84
Fuel gauge ................................ 84
Fuel selector .............................. 85
Engine coolant temperature gauge ....................................... 86
Service display .......................... 86
Control indicators ......................87
Turn lights .................................. 91Seat belt reminder.....................91
Airbag and belt tensioners .........91
Airbag deactivation ....................92
Charging system .......................92
Malfunction indicator light ..........92
Brake and clutch system ...........92
Antilock brake system (ABS) .....93
Gear shifting .............................. 93
Descent control system .............93
Lane departure warning ............93
Electronic Stability Control off ...93
Electronic Stability Control and Traction Control system ...........93
Traction Control system off .......94
Preheating ................................. 94
AdBlue ....................................... 94
Tyre pressure monitoring system ...................................... 94
Engine oil pressure ....................94
Low fuel ..................................... 94
Immobiliser ................................ 95
Exterior light .............................. 95
High beam ................................. 95
High beam assist .......................95
Adaptive forward lighting ...........95
Front fog lights ........................... 95
Rear fog light ............................. 95
Cruise control ............................ 95
Vehicle detected ahead .............96
Speed limiter ............................. 96Traffic sign assistant ..................96
Door open .................................. 96
Displays ....................................... 96
Driver Information Centre ..........96
Info Display .............................. 101
Vehicle messages ......................103
Warning chimes .......................104
Battery voltage ........................ 104
Vehicle personalisation ..............105
Telematics service .....................109
OnStar ..................................... 109
ERA GLONASS .......................113
Page 78 of 253
76Instruments and controlsControlsSteering 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
Cruise control and speed limiter are
operated via the controls on the left
side of the steering wheel.
Additionally, forward collision alert
can be set by using the controls on the
left side of the steering wheel.
Infotainment system can be operated
via the controls on the right side of the
steering wheel.
Driver assistance systems 3 154.
Further information is available in the
Infotainment manual.
Heated steering wheel
Activate heating by pressing *.
Activation is indicated by the LED in
the button.
Heating is operational when the
engine is running.
Page 86 of 253
84Instruments and controlsUplevel instrument cluster
Select Info page Q by pressing Menu.
Choose page Trip A or Trip B by
turning adjuster wheel on the turn
signal lever.
Each trip odometer page can be reset separately by pressing SET/CLR on
the turn signal lever for a few seconds
on the respective menu.
Driver Information Centre 3 96.
Tachometer
Displays the engine speed.
Drive in a low engine speed range for each gear as much as possible.
Caution
If the needle is in the red warning
zone, the maximum permitted
engine speed is exceeded. Engine at risk.
Fuel gauge
Displays the level in the fuel or gas
tank depending on the operation mode.
The arrow indicates the vehicle side
where the fuel filler flap is located.
Control indicator Y illuminates if the
level in the tank is low. Refuel
immediately if it flashes.
During liquid gas operation, the
system automatically switches over to
petrol operation when gas tanks are
empty 3 85.
Never run fuel tank dry.
Page 87 of 253

Instruments and controls85Because of the fuel remaining in the
tank, the top-up quantity may be less
than the specified tank capacity.
Fuel selector
Liquid gas operation, LPG
Pressing LPG switches between
petrol and liquid gas operation as
soon as the required parameters (coolant temperature, gas
temperature and minimum engine
speed) have been reached. The
requirements are usually fulfilled after
approximately 60 seconds
(depending on exterior temperature)
and the first firm press on the
accelerator. The LED status shows
the current operating mode when
egnine is running.LED off:petrol operationLED
flashes:checking conditions for
fuel transition to liquid
gas operation.
Illuminates if conditions
are fulfilled.LED illu‐
minates:liquid gas operationLED
flashes
five
times
and
extin‐
guishes:liquid gas tank is empty
or failure in liquid gas
system. A message is
displayed in the Driver
Information Centre. The
vehicle is in petrol
operation.
The selected fuel mode is stored and reactivated at the next ignition cycle if
conditions allow.
As soon as the liquid gas tank is
empty, a warning message is
displayed in the Driver Information
Centre and the LED in the button
flashes rapidly. Petrol operation is
automatically engaged.
When switching automatically
between petrol or gas operation, a
brief delay of engine tractive power
may be noticeable.
When petrol fuel tank is empty, the
engine will not start.
Every six months, run the petrol tank
down until control indicator Y
illuminates, then refuel. This helps
maintain fuel quality and system
function for petrol operation.
Fill the tank completely at regular
intervals to prevent corrosion in the
tank.
Faults and remedies
If gas mode is not possible, check the following:
● Is there enough liquid gas present?
● Is there enough petrol present for
starting?
Due to extreme temperatures in
combination with the gas
composition, it may take slightly
longer before the system switches
from petrol to gas mode.