88Instruments and controlsInstruments and
controlsControls ....................................... 89
Steering wheel adjustment ........89
Steering wheel controls .............89
Heated steering wheel ...............90
Horn ........................................... 90
Windscreen wiper and washer ..90
Rear window wiper and washer ...................................... 92
Outside temperature ..................93
Clock ......................................... 93
Power outlets ............................. 95
Inductive charging .....................96
Ashtrays .................................... 97
Warning lights, gauges and indi‐
cators ........................................... 98
Instrument cluster ......................98
Speedometer ........................... 103
Odometer ................................ 104
Trip odometer .......................... 104
Tachometer ............................. 105
Fuel gauge .............................. 105
Engine coolant temperature gauge ..................................... 106
Service display ........................ 106Control indicators ....................107
Turn lights ................................ 107
Seat belt reminder ...................107
Airbag and belt tensioners .......108
Airbag deactivation ..................108
Charging system .....................109
Malfunction indicator light ........109
Brake and clutch system .........109
Electric parking brake ..............109
Electric parking brake fault ......109
Antilock brake system (ABS) ...110
Gear shifting ............................ 110
Following distance ...................110
Lane keep assist .....................110
Electronic Stability Control off . 110
Electronic Stability Control and Traction Control system .........110
Traction Control system off .....111
Engine coolant temperature ....111
Preheating ............................... 111
AdBlue ..................................... 111
Tyre pressure monitoring system .................................... 111
Engine oil pressure ..................111
Low fuel ................................... 112
Immobiliser .............................. 112
Exterior light ............................ 112
High beam ............................... 112
High beam assist .....................112
LED headlights ........................ 112Fog light................................... 112
Rear fog light ........................... 113
Cruise control .......................... 113
Adaptive cruise control ............113
Vehicle detected ahead ...........113
Pedestrian detection ................113
Speed limiter ........................... 113
Traffic sign assistant ................113
Door open ................................ 113
Displays ..................................... 114
Driver Information Centre ........114
Info Display .............................. 121
Head-up display ......................122
Vehicle messages ......................125
Warning chimes .......................126
Battery voltage ........................ 126
Vehicle personalisation ..............127
Telematics service .....................131
OnStar ..................................... 131
Instruments and controls107On Mid- and Uplevel display select
Info Menu by pressing è on steering
wheel. Press å to select Remaining
Oil Life page.
Remaining oil life duration is indicated
in percentage.
Reset On Baselevel display press
SET/CLR on turn signal lever for
several seconds to reset. The ignition must be switched on but engine not
running.
On Mid- and Uplevel display press
é on steering wheel to open the
subfolder. Select Reset and confirm
by pressing 9 for several seconds.
The ignition must be switched on but
engine not running.
The system must be reset every time
the engine oil is changed to allow
proper functionality. Seek the
assistance of a workshop.
Next service When the system has calculated that
engine oil life has been diminished,
Change Engine Oil Soon appears inthe Driver Information Centre. Have
engine oil and filter changed by a
workshop within one week or
500 km (whichever occurs first).
Service information 3 285.
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 98.
Turn lights
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 3 247, Fuses
3 257.
Turn signals 3 143.
Seat belt reminder
Seat belt reminder on front seats
X for driver's seat illuminates or
flashes red in the instrument cluster.
110Instruments and controlsFlashes
Electric parking brake is in service mode. Stop vehicle, apply and
release the electric parking brake to
reset.9 Warning
Have the cause of the fault
remedied immediately by a
workshop. Avoid parking on
inclines until the cause of the fault has been remedied.
Antilock brake system
(ABS)
u illuminates yellow.
Illuminates for a few seconds after the
ignition is switched on. The system is ready for operation when the control
indicator extinguishes.
If the control indicator does not go out after a few seconds, or if it illuminates while driving, there is a fault in the
ABS. The brake system remains
operational but without ABS
regulation.
Antilock brake system 3 180.
Gear shifting
R or S with the number of a higher or
lower gear is indicated, when up- or
downshifting is recommended for fuel
saving reasons.
Following distance
E indicates the following distance
setting of the alert timing sensitivity
for the forward collision alert using
filled distance bars.
Forward collision alert 3 200.
Lane keep assist a illuminates green or yellow, or
flashes yellow.
Illuminates green
The system is switched on and ready
to operate.Illuminates yellow
The system approaches a detected
lane marking without using the turn
signal in that direction.
Flashes yellow
The system recognizes that the lane
is departed significantly.
Lane keep assist 3 229
Electronic Stability Control
off
t illuminates yellow.
The system is deactivated.
Electronic Stability Control
and Traction Control system
b illuminates or flashes yellow.
Illuminates A fault in the system is present.
Continued driving is possible. Driving
stability, however, may deteriorate
depending on road surface
conditions.
Driving and operating171indicated by illumination of% and a
warning message in the Driver
Information Centre.
% illuminates along with a warning
message illuminates when diesel
particle filter is full. Start cleaning process as soon as possible.
% flashes along with a warning
message when diesel particle filter
has reached the maximum filling
level. Start cleaning process
immediately to avoid damage to the engine.
Activate self-cleaning process
To activate cleaning process,
continue driving, keep engine speed
above 2000 rpm. Shift down if
necessary. Diesel particle filter
cleaning is then started.
Cleaning takes place quickest at high
engine speeds and loads.
Control indicator % extinguishes as
soon as the self-cleaning operation is complete. Keep on driving until self-
cleaning operation is complete.Caution
If possible, do not interrupt
cleaning process. Drive until
cleaning is completed to avoid the need for service or repair by a
workshop.
Cleaning process not possible
If cleaning is not possible for anyreasons, control indicator Z
illuminates and a warning message
appears in the Driver Information
Centre. Engine power may be
reduced. Seek the assistance of a
workshop immediately.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
Caution
Fuel grades other than those listed on pages 3 231, 3 294 could
damage the catalytic converter or
electronic components.
Unburnt petrol will overheat and
damage the catalytic converter.
Therefore avoid excessive use of the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.
180Driving and operatingDrive systems
All-wheel drive
The All-wheel drive system enhances
driving characteristics and stability,
and helps to achieve the best
possible driveability regardless of
ground surface. The system is always
active and cannot be deactivated.
The torque is distributed steplessly
between the wheels of the front and
rear axle up to a torque split of 50%
to 50%. Depending on the driving
conditions, i.e. steady state driving,
All wheel drive system transfers a
minimum amount of torque for fuel
efficiency. Additionally the torque
vectoring between the rear wheels is
distributed depending on the vehicle
dynamic and surface.
This is possible because the All wheel drive system operates with two
clutches, one on each side.
For optimum system performance,
the vehicle's tyres should not have
varying degrees of wear.If a service message is displayed in
the Driver Information Centre, the
system may have limited functionality
(or be completely disabled in some
cases, i.e. the vehicle switches to
Front-wheel drive). Seek the
assistance of a workshop.
Towing the vehicle 3 279.Brakes
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 the 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 3 109.
Active emergency braking 3 203.
Antilock brake system Antilock brake system (ABS)
prevents the wheels from locking.
218Driving and operatingDetection zones
The system sensors cover a zone of
approx. 3.5 metres parallel on both
vehicle sides and approx. 3 metres
rearwards on side blind zone alert
(A) and approx. 50 metres rearwards
on lane change alert (B) on parallel
lanes. The zones start at each
exterior mirror. The height of the zone
is approx. between 0.5 metres and
2 metres off the ground.
Deactivation
Activation or deactivation of the lane
change alert can be set in the vehicle personalisation menu in the Info-
Display.
Vehicle personalisation 3 127.
Info-Display 3 121.
The system is deactivated if the
vehicle is towing a trailer.
Deactivation is indicated by a
message in the Driver Information
Centre.
System limitations Occasional missed alerts can occur
under normal circumstances or in
sharp curves. The system can
temporarily alert of objects in the blind spot at specific weather conditions(rain, hail etc). Driving on a wet road
or in the transitions from a dry area to
a wet area can cause the control
indicator F to light up, as water
splash can be interpreted as an
object. Otherwise the control indicator F may illuminate due to guardrails,
signs, trees, shrubs or other immobile
objects. This is normal operation and
the system does not need to be
serviced.The system may not operate properly
when:
● Ice, snow, mud, stickers, magnets, metal plates, or
anything else covers the sensors.
● Driving in heavy rainstorms.
● The vehicle had an accident or if the area surrounding the
detection sensor is damaged or
not properly repaired.
● There are extreme temperature changes.
● The vehicle is towing a trailer
In the event of a fault in the system or if the system does not work due to
temporary conditions, a message is
displayed in the Driver Information
Centre. Seek the assistance of a
workshop.
Note
After production, the system
requires a calibration. For optimal
performance, drive as soon as
possible on a straight highway road
with roadside objects, e.g. guardrails
and barriers for some distance.