110Instruments and controlsAVehicle detected ahead 3 116hDoor open 3 116
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 3 232, Fuses
3 240.
Turn signals 3 145.
Seat belt reminder
Seat belt reminder on front seats X for driver's seat or for front
passenger seat illuminates or flashes
red.
Illuminates
After the ignition has been switched
on until the seat belt has been
fastened.
Flashes
After having started the engine, for a
maximum of 100 seconds until the
seat belt has been fastened.
Fastening the seat belt 3 51.
Seat belt status on rear seats
> or X in the Driver Information
Centre flashes or illuminates.
Illuminates
After having started the engine, for a
minimum of 35 seconds until the seat
belt has been fastened.
If an unfastened seat belt is fastened
whilst driving.
Flashes
After starting-off, when the seat belt is unfastened.
Fastening the seat belt 3 51.
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 extinguish 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.
Instruments and controls1153. 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 the
assistance of a workshop 3 226.
Low fuel
i illuminates or flashes yellow.
Illuminates
Level in fuel tank is too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Catalytic converter 3 165.
Bleeding the diesel fuel system
3 231.
Immobiliser d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Reduced engine power
# illuminates yellow.
The engine power is limited. Consult
a workshop.
Exterior light8 illuminates green.
The exterior lights are on 3 138.
High beam
C illuminates blue.Illuminates when high beam is on,
during headlight flash 3 140 , or when
high beam is on with high beam assist
or intelligent light range 3 142.
High beam assist
l illuminates green.
The high beam assist or intelligent light range is activated 3 140,
3 142.
Adaptive forward lighting f illuminates or flashes yellow.
Illuminates
Fault in system.
Seek the assistance of a workshop.
Flashes
System switched to symmetrical low
beam.
Control indicator f flashes for approx.
four seconds after the ignition is
switched on as a reminder that the
system has been activated 3 141.
Automatic light control 3 139.
126Instruments and controlsWhen the vehicle is parked and/orthe driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
Battery voltage
When the vehicle battery voltage is
running low, a warning message or
warning code 174 will appear in the
Driver Information Centre.
1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window
or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message or warning
code will disappear after the engine
has been started two times
consecutively without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.Trip computer
The menus and functions can be
selected via the buttons on the turn
signal lever 3 116.
Press MENU to select the Trip/Fuel
Information Menu , or select W on
the Uplevel-Combi-Display.
Trip/Fuel Information Menuon
Uplevel-Combi-Display
Turn the adjuster wheel to select the
submenus:
Instruments and controls133system will take over brake
control, warn by chimes only or is
deactivated completely.
Side Blind Zone Alert : Activates
or deactivates the side blind spot alert system.
● Lighting
Vehicle Locator Lights : Activates
or deactivates the entry lighting.
Exit Lighting : Activates or
deactivates and changes the duration of exit lighting.
● Power Door Locks
Open Door Anti Lock Out :
Activates or deactivates the
automatic door locking function
while a door is open.
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.
Delay Door Lock : Activates or
deactivates the delayed door
locking function.● Remote Lock/Unlock/Start
Remote Lock Feedback :
Activates or deactivates the
hazard warning flasher feedback
whilst locking.
Remote Unlock Feedback :
Activates or deactivates the
hazard warning flasher feedback whilst unlocking.
Remote Door Unlock : Changes
the configuration to unlock only
the driver's door or the entire
vehicle whilst unlocking.
Relock Remotely Unlocked
Doors : Activates or deactivates
the automatic relock function
after unlocking without opening
the vehicle.
● Return to Factory Settings? :
Resets all settings to the default settings.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.
Notice
OnStar is not available for all
markets. For further information,
contact your workshop.
Notice
In order to be available and
operational, OnStar needs a valid
OnStar subscription, functioning
vehicle electrics, mobile service and
GPS satellite link.
To activate the OnStar services and
set up an account, press Z and speak
with an advisor.
Depending on the equipment of the
vehicle, the following services are available:
● Emergency services and support
in the case of a vehicle
breakdown
● Wi-Fi hotspot
138LightingLightingExterior lighting.......................... 138
Light switch .............................. 138
Automatic light control .............139
High beam ............................... 140
High beam assist .....................140
Headlight flash ......................... 140
Headlight range adjustment ....141
Headlights when driving abroad .................................... 141
Daytime running lights .............142
Adaptive forward lighting .........142
Hazard warning flashers ..........145
Turn and lane-change signals . 145
Front fog lights ......................... 146
Rear fog light ........................... 146
Parking lights ........................... 146
Reversing lights .......................147
Misted light covers ...................147
Interior lighting ........................... 147
Instrument panel illumination control ..................................... 147
Interior lights ............................ 147
Reading lights .......................... 148
Sunvisor lights ......................... 148Lighting features ........................148
Centre console lighting ............148
Entry lighting ............................ 148
Exit lighting .............................. 149
Battery discharge protection ....149Exterior lighting
Light switch
Turn light switch:
7:lights off8:sidelights9:headlights
Control indicator 8 3 115.
Lighting145Automatic high beam activation
operates at a speed above 25 mph
and deactivates below 12 mph.
Intelligent light ranging operates
above 35 mph.
The green control indicator l
illuminates continuously when the
function is activated, the blue one 7
illuminates when high beam switches
on automatically.
Deactivation
Push indicator lever once. It is also deactivated when front fog lights are
switched on.
Dynamic automatic headlightlevelling
To prevent oncoming traffic from
dazzle, headlight levelling is
automatically adjusted based on
inclination information measured by
front and rear axle, acceleration or
deceleration and vehicle speed.Fault in Adaptive forward lighting
system
When the system detects a failure in
the Adaptive forward lighting system,
the system moves to a preset position to avoid dazzling of oncoming traffic.
If this is not possible, the affected
headlight will be automatically
switched off. In any case, one
headlight will stay on. A warning is
displayed in the Driver Information
Centre.
Hazard warning flashers
Operated by pressing ¨.
In the event of an accident with airbag
deployment the hazard warning
flashers are activated automatically.
Turn and lane-changesignalslever up:right turn signallever down:left turn signal
If the lever is moved past the
resistance point, the turn signal is
switched on constantly. When the
steering wheel moves back, the turn
signal is automatically deactivated.
Driving and operating173Brakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when the brake pedal
is depressed firmly. Considerably
more force is needed for this. The
braking distance is extended. Seek the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has
been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator R 3 111.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
After starting off the system performs
a self-test which may be audible.
Control indicator u 3 112.
Adaptive brake light
During full braking, all three brake
lights flash for the duration of ABS
control.Fault9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
Have the cause of the fault remedied
by a workshop.
182Driving and operatingBy pressing m to activate cruise
control or adaptive cruise control or
by switching off the ignition, speed
limiter is also deactivated and the
stored speed is deleted.
Adaptive cruise control Adaptive cruise control is an
enhancement to traditional cruise
control with the additional feature of
maintaining a certain distance behind
the vehicle ahead.
Adaptive cruise control automatically
decelerates the vehicle when
approaching a slower moving vehicle. It then adjusts the vehicle speed to
follow the vehicle ahead at the
selected following distance. The
vehicle speed increases or decreases to follow the vehicle in front, but willnot exceed the set speed. It may
apply limited braking with activated
brake lights.
The adaptive cruise control can store
and maintain speeds over approx.
30 mph and brakes automatically to
follow a slower vehicle driving ahead
down to a minimum speed of
18 mph.
Adaptive cruise control uses a radar
sensor to detect the vehicles ahead.
If no vehicle is detected in the driving path, the adaptive cruise control will
behave like a traditional cruise
control.
For safety reasons, the system
cannot be activated before the brake
pedal has been depressed once after
switching on ignition. Activation in first gear is not possible.
Adaptive cruise control is mainly
advised to be used on long straight
roads, e.g. highways or country roads
with steady traffic. Do not use the
system if it is not advisable to
maintain a constant speed.
Control indicator A 3 116, m 3 116.
9 Warning
The complete driver attention is
always required while driving with adaptive cruise control. The driver stays fully in control of the vehicle
because the brake pedal, the
accelerator pedal and the cancel
switch have priority over any
adaptive cruise control operation.
Switching on
Press C to switch on adaptive cruise
control. The control indicator m
illuminates white.