88Instruments and controlsEvery 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.
In extreme situations, the system may
also switch back to petrol mode if the
minimum requirements are not
fulfilled. If conditions allow, it may be
possible to manually switch back to
liquid gas operation.Seek the assistance of a workshop in
the event of all other faults.Caution
Repairs and adjustments may only be made by trained specialists in
order to maintain the safety and
warranty on the LPG system.
Liquid gas is given a particular odour
(odorised) so that any leaks can be
detected easily.
9 Warning
If you smell gas in the vehicle or in
the immediate vicinity, switch to petrol mode immediately. No
smoking. No naked flames or
ignition sources.
If the gas odour persists, do not start
the engine. Have the cause of the
fault remedied by a workshop.
When using underground car parks,
follow the instructions of the operator
and local laws.
Note
In the event of an accident, switch off
the ignition and lights.
Fuel for liquid gas operation 3 178.
Engine coolant temperature gauge
Displays the coolant temperature.
50:engine operating temperature
not yet reached90:normal operating temperature130:temperature too high
Control indicator o illuminates if
engine coolant temperature is too
high.
90Instruments and controls● switch on ignition; the distanceindication begins a countdown
● when the display indicates =0,
release the button. Symbol F
disappears
Retrieving service information To retrieve the status of the service
information at any time press button
M or CHECK . The service
information is displayed for a few
seconds.
Service information 3 224.
Control indicators The control indicators described are
not present in all vehicles. The
description applies to all instrument
versions. Depending on the
equipment, the position of the control
indicators may vary. When the
ignition is switched on, most control
indicators will illuminate briefly as a
functionality test.
The control indicator colours mean:red:danger, important reminderyellow:warning, information, faultgreen:confirmation of activationblue:confirmation of activationwhite:confirmation of activation
See all control indicators on different
instrument clusters 3 82.
Turn signal
O illuminates or flashes green.
Illuminates briefly
The parking lights are switched on.
Flashes
A turn signal or the hazard warning flashers are activated.
Rapid flashing: failure of a turn signal light or associated fuse, failure of turn
signal light on trailer.
Bulb replacement 3 192, Fuses
3 200.
Turn signals 3 115.
Seat belt reminder
Seat belt reminder on all seats X illuminates or flashes red in the
instrument cluster together with the
indication in the roof console for each
seat belt.
● When the ignition is switched on,
X in the instrument cluster and
the symbol for the respective
seat in the roof console comes
Instruments and controls91on, if the seat belt of any
occupied seat has not been
fastened.
● After running up, X in the
instrument cluster and the
symbol for the respective seat in
the roof console flashes for a
certain time together with a
chime. After a certain time of
driving X illuminates constantly
until the seat belt of the
respective seat has been
fastened or if any passenger has
unfastened the seat belt.
Airbag and belt tensioners v illuminates red.
When the ignition is switched on, the control indicator illuminates for
approx. four seconds. If it does not
illuminate, does not go out after
four seconds or illuminates whilst
driving, there is a fault in the airbag
system. Seek the assistance of a
workshop. The airbags and belt
pretensioners may fail to trigger in the
event of an accident.Deployment of the belt pretensioners
or airbags is indicated by continuous
illumination of v.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Belt pretensioners, airbag system
3 49, 3 52.
Airbag deactivation
Ó ON illuminates yellow.
The front passenger airbag is
activated.
* OFF illuminates yellow.
The front passenger airbag is
deactivated.
Airbag deactivation 3 57.
Charging system
p illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Stop, switch off engine. Vehicle
battery is not charging. Engine
cooling may be interrupted. The
brake servo unit may cease to be
effective. Seek the assistance of a
workshop.
Malfunction indicator light
Z illuminates or flashes yellow.
Instruments and controls953. Move out of the flow of traffic asquickly as possible without
impeding other vehicles.
4. Switch off ignition.9 Warning
When the engine is off,
considerably more force is needed
to brake and steer.
During an Autostop, the brake
servo unit will still be operational.
Do not remove key until vehicle is stationary, otherwise the steeringwheel lock could engage
unexpectedly.
Check oil level before seeking
assistance of a workshop 3 188.
Low fuel
o illuminates yellow.
Level in fuel tank is too low.
Refuelling 3 179.
Bleeding the diesel fuel system
3 191.
Autostop
D illuminates or flashes green.
Illuminates green
Engine is in an Autostop.
Flashes green
Autostop is temporarily unavailable,
or Autostop mode is invoked
automatically.
Stop-start system 3 138.
Exterior light
8 illuminates green.
The exterior lights are on 3 111.
High beam
C illuminates blue.
Illuminated when high beam is on or
during headlight flash 3 112.
High beam assist
f illuminates green.
The high beam assist is activated,
see Adaptive forward lighting 3 113.Low beam
9 illuminates green.
Illuminated when low beam is on.
Fog light
> illuminates green.
The front fog lights are on 3 115.
Rear fog light ø illuminates yellow.
The rear fog light is on 3 116.
Rain sensor < illuminates green.
Illuminated when rain sensor position
on wiper stalk is selected.
Side blind spot alert
B illuminates green.
The system is active.
Cruise control
m illuminates in the Driver
Information Centre.
Instruments and controls1019Warning
If the head-up display image is too
bright or too high in your field of
view, it may obstruct your view
when it is dark outside. Be sure to keep the head-up display imagedim and placed low in your field of
view.
Adjust brightness
The Head-up display image will
automatically dim and brighten to
compensate for outside lighting.
Brightness can also be adjusted
manually as needed:
Press e to brighten the display. Press
æ to dim the display.
The image can temporarily light up
depending on angel and position of
sunlight.
Switching off
Press æ and hold to turn the Head-up
display off.
Language
Preferred language can be set in
vehicle personalisation menu 3 103.
Units
Units can be changed in vehicle
personalisation menu 3 103.
Care of Head-up display
Clean the screen of the Head-up
display with a soft cloth sprayed with
glass cleaner. Wipe the lens gently, then dry it.
System limitations Head-up display may not operate
properly when:
● The lens in the instrument panel is covered by objects or not
clean.
● Display brightness is too dim or bright.
● Image is not adjusted to the proper height.
● The driver wears polarized sunglasses.If the head-up image is not correct for
other reasons, contact a workshop.
102Instruments and controlsVehicle messagesMessages are indicated in the Driver
Information Centre, in some cases
together with a warning and signal
chime.
Press SET/CLR on the turn signal
lever to confirm a message.
Vehicle and service messages The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
Messages in the
Colour-Info-Display
Some important messages may
appear additionally in the
Info-Display. Some messages only
pop-up for a few seconds.
Warning chimes When starting the engine or whilst
driving
Only one warning chime will sound at a time.
The warning chime regarding not
fastened seat belts has priority over
any other warning chime.
● If a seat belt is not fastened.
● If a door or the tailgate is not fully
closed when starting off.
● If a certain speed is exceeded with parking brake applied.
● If cruise control deactivates automatically.
● If a programmed speed or speed
limit is exceeded.● If a warning message appears in the Driver Information Centre.
● If the electronic key is not in the passenger compartment.
● If the parking assist detects an object.
● If an unintended lane change occurs.
● If the diesel particle filter has reached the maximum filling
level.
When the vehicle is parked and/or the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
● If any condition for an autostart is
not fulfilled.
Battery voltage When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.
106Instruments and controlsGuide-me-home lighting:
Activates or deactivates the
function and adjusts its duration.
● Comfort
Mood lighting : Adjusts the
brightness of the ambient
lighting.
Rear wiper in reverse : Activates
or deactivates automatic
switching on of the rear window
wiper when reverse gear is
engaged.
● Vehicle access
Door unlock: boot only : Activates
or deactivates unlocking the
tailgate only when pressing T
on the remote control.
Door unlock: driver only :
Changes the configuration to unlock the driver's door only or all
doors when pressing O on the
remote control.
● Safety
Driver attention warning :
Activates or deactivates the
driver drowsiness system.Driving functions
Press Í.
Select Driving functions .
In the corresponding submenus the
following settings can be changed:
● Park Assist : Activates advanced
park assist, a parking maneuver can be selected.
● Blind Spot Sensors : Activates or
deactivates side blind spot alert.
● Panoramic view system :
Activation/deactivation of the
function.
Telematics service
OnStar
OnStar is a personal connectivity and service assistant with integrated
Wi-Fi hotspot. The OnStar service is
available 24 hours a day, seven days
a week.
Note
OnStar is not available for all
markets. For further information,
contact your workshop.
Note
In order to be available and
operational, OnStar needs a valid
OnStar subscription, functioning
vehicle electrics, ignition on, mobile
service and GPS satellite link.
To activate the OnStar services and
set up an account, press Z and speak
with an advisor.
Lighting111LightingExterior lighting.......................... 111
Light switch .............................. 111
Automatic light control .............112
High beam ............................... 112
Headlight flash ......................... 112
Headlight range adjustment ....113
Daytime running lights .............113
Adaptive forward lighting .........113
Hazard warning flashers ..........114
Turn and lane-change signals . 115
Front fog lights ......................... 115
Rear fog light ........................... 116
Parking lights ........................... 116
Reversing lights .......................116
Misted light covers ...................116
Interior lighting ........................... 117
Instrument panel illumination control ..................................... 117
Interior lights ............................ 117
Reading lights .......................... 117
Sunvisor lights ......................... 118
Lighting features ........................118
Centre console lighting ............118
Entry lighting ............................ 118Exit lighting.............................. 118
Battery discharge protection ....119Exterior lighting
Light switch
Turn light switch:
AUTO:automatic light control
switches automatically
between daytime running
light and headlight8:sidelights9:headlights
Control indicator 8 3 95.
Tail lights Tail lights are illuminated together
with low/high beam and sidelights.