Instruments and controls109OverviewOTurn signal 3 109XSeat belt reminder 3 110vAirbag and belt tensioners
3 110VAirbag deactivation 3 111pCharging system 3 111ZMalfunction indicator light
3 111RBrake and clutch system 3 111mElectric parking brake 3 112jElectric parking brake fault
3 112-Operate pedal 3 112uAntilock brake system (ABS)
3 112RGear shifting 3 113EFollowing distance 3 113cPower steering 3 113)Lane departure warning 3 113nElectronic Stability Control off
3 113bElectronic Stability Control and
Traction Control system 3 113kTraction Control system off
3 113!Preheating 3 114%Diesel particle filter 3 114YAdBlue 3 114wTyre pressure monitoring
system 3 114IEngine oil pressure 3 114YLow fuel 3 115dImmobiliser 3 1158Exterior light 3 115CHigh beam 3 115fHigh beam assist 3 115fLED headlights 3 133>Fog light 3 115rRear fog light 3 115mCruise control 3 115 / Adaptive
cruise control 3 116CAdaptive cruise control 3 116AVehicle detected ahead 3 116LSpeed limiter 3 116LTraffic sign assistant 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 3 267, Fuses
3 274.
Turn signals 3 134.
124Instruments and controlsAuto Rear Defog: Automatically
activates heated rear window.
● Collision / Detection Systems
Park Assist : Activates or
deactivates the ultrasonic
parking assist. Activation is
selectable with or without
attached trailer coupling.
Auto Collision Preparation :
Activates or deactivates the
automatic brake functionality of
the vehicle in the event of
imminent collision danger. The
following is selectable: the
system will take over brake
control, warn by chimes only or is
deactivated completely.
Side Blind Zone Alert : Activates
or deactivates side blind zone
alert.
● Comfort and Convenience
Chime Volume : Changes the
volume of warning chimes.
Personalization By Driver :
Activates or deactivates the
personalisation function.
Auto Wipe in Reverse Gear :
Activates or deactivatesautomatic switching on of the
rear window wiper when reverse gear is engaged.
● 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
Unlocked Door Anti Lock Out :
Activates or deactivates the 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.
Delayed Door Lock : Activates or
deactivates the delayed door
locking function.
● Remote Lock, Unlock, Start
Remote Unlock Light Feedback :
Activates or deactivates thehazard warning flasher feedback
whilst unlocking.
Remote Lock Feedback :
Changes what kind of feedback
is given when locking the vehicle.
Remote Door Unlock : Changes
the configuration to unlock only
the driver's door or the whole
vehicle whilst unlocking.
Relock Remotely Unlocked
Doors : Activates or deactivates
the automatic relock function
after unlocking without opening
the vehicle.
134LightingFault in LED headlight system
When the system detects a failure in
the LED headlight system, f
illuminates and 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-change
signalslever up:right turn signallever down:left turn signal
A resistance point can be felt when
moving the lever.
Constant flashing is activated when
the lever is being moved beyond the
resistance point. It is deactivated
when the steering wheel is moved in
the opposite direction or lever is
manually moved back to its neutral
position.
Activate temporary flashing by
holding the lever just before the
resistance point. Turning lights will
flash until lever is being released.
To activate three flashes, tap the
lever briefly without passing the
resistance point.
When a trailer is connected, turn
signal flashes six times when
pressing the lever until resistance is
felt and then releasing.
Front fog lights
Operated by pressing >.
Lighting135Light switch in position AUTO:
switching on front fog lights will switch
headlights on automatically.
Rear fog light
Operated by pressing r
.
Light switch in position AUTO:
switching on rear fog light will switch
headlights on automatically.
Light switch in position 8: rear fog
light can only be switched on with
front fog lights.
The vehicle rear fog light is
deactivated when towing a trailer or a
plug is connected with the socket, e.
g. when a bicycle carrier is used.
Parking lights
When the vehicle is parked, the
parking lights on one side can be
activated:
1. Switch off ignition.
2. Move turn signal lever all the way up (right parking lights) or down
(left parking lights).
Confirmed by a signal and the
corresponding turn signal control
indicator.
Reversing lights
The reversing light comes on when
the ignition is on and reverse gear is
selected.
Misted light covers
The inside of the light housing may
mist up briefly in poor, wet and cold weather conditions, in heavy rain or
after washing. The mist disappears
quickly by itself; to help switch on the
headlights.
Driving and operating197Driving and
operatingDriving hints ............................... 198
Control of the vehicle ...............198
Steering ................................... 198
Starting and operating ...............198
New vehicle running-in ............198
Ignition switch positions ...........198
Retained power off ..................199
Starting the engine ..................199
Overrun cut-off ........................ 200
Stop-start system ....................201
Parking .................................... 203
Engine exhaust .......................... 204
Diesel particle filter ..................204
Catalytic converter ...................205
AdBlue ..................................... 206
Automatic transmission ..............209
Transmission display ...............209
Selector lever .......................... 209
Manual mode ........................... 210
Electronic driving programmes 210
Fault ........................................ 211
Interruption of power supply ....211
Manual transmission ..................212Brakes........................................ 213
Antilock brake system .............213
Parking brake .......................... 213
Brake assist ............................. 215
Hill start assist ......................... 215
Ride control systems .................216
Traction Control system ..........216
Electronic Stability Control ......217
Interactive driving system ........218
Driver assistance systems .........219
Cruise control .......................... 219
Speed limiter ........................... 221
Adaptive cruise control ............222
Forward collision alert .............229
Following distance indication ...232
Active Emergency Braking ......233
Parking assist .......................... 234
Side blind spot alert .................237
Rear view camera ...................239
Traffic sign assistant ................240
Lane departure warning ..........244
Fuel ............................................ 245
Fuel for petrol engines .............245
Fuel for diesel engines ............246
Fuel for natural gas operation . 247
Fuel for liquid gas operation ....247
Refuelling ................................ 247
Fuel consumption - CO 2-
Emissions .............................. 252Trailer hitch................................ 253
General information .................253
Driving characteristics and towing tips .............................. 254
Trailer towing ........................... 254
Towing equipment ...................255
Trailer stability assist ...............257
Driving and operating227visibility. In case of sensor
blockage, clean the sensor
cover.
System limits ● The system's automatic brake force does not permit hard
braking and the braking level
may not be sufficient to avoid a
collision.
● After a sudden lane change, the system needs a certain time to
detect the next preceding
vehicle. So if a new vehicle is
detected, the system may
accelerate instead of braking.
● Adaptive cruise control does ignore the oncoming traffic.
● Adaptive cruise control does not brake for pedestrians, animals,very slow speed driving or
stopped vehicles.
● Don't use adaptive cruise control when towing a trailer.Bends
The adaptive cruise control calculates
a predicted path based on the
centrifugal force. This predicted path
considers the current bend
characteristic, but cannot consider a
future bend change. The system may lose the current vehicle ahead or
consider a vehicle which is not in the
actual lane. This can happen when
entering or exiting a bend or if the
bend gets stronger or weaker. If it no
longer detects any vehicle ahead,
then control indicator A will
extinguish.
If the centrifugal force is too high in a bend, the system slows down the vehicle slightly. This braking level is
not designed to avoid spinning off the bend. The driver is responsible for
reducing the selected speed before
entering a bend and in general to
adapt the speed to the road type and
to existing speed limits.
Motorways
On motorways, adapt the set speed
to the situation and the weather.
Always consider that adaptive cruise
control has a limited visibility range, a
limited braking level and a certain
reaction time to verify if a vehicle is in
the driving path or not. Adaptive
cruise control may not be able to
brake the vehicle in time to avoid a
collision with a much slower vehicle or after a lane change. This is
particularly true if driving fast or if the
visibility is reduced due to weather
conditions.
While entering or exiting a motorway,
adaptive cruise control may lose the
vehicle ahead and accelerate up to
228Driving and operatingthe set speed. For this reason,
decrease the set speed before the
exit or before the entry.
Vehicle path changes
If another vehicle enters your driving
path, adaptive cruise control will first
consider the vehicle when it is
completely in your path. Be ready to
take action and depress the brake
pedal, if you need to brake more
quickly.
Hill and trailer considerations
System performance on hills and
when towing a trailer depends on
vehicle speed, vehicle load, traffic
conditions and the road gradient. It
may not detect a vehicle in your path
while driving on hills. On steep hills,
you may have to use the accelerator
pedal to maintain your vehicle speed.
When going downhill, especially
when towing a trailer, you may have
to brake to maintain or reduce your
speed.
Note that applying the brake
deactivates the system. It is not
recommended to use adaptive cruise
control on steep hills especially when towing a trailer.Radar unit
The radar unit is mounted behind the
radiator grille below the brand
emblem.
9 Warning
The radar unit was aligned
carefully during manufacture.
Therefore, after a frontal accident, do not use the system. The front
bumper may appear to be intact,
however the sensor behind can be
out of position and react
incorrectly. After an accident,
236Driving and operatingRear obstacles are indicated
acoustically and visually at the same
time.
Front obstacles are indicated visually
first. At distances less than 80 cm an
acoustic signal also sounds.
The distance indication can be
inhibited by vehicle messages with a higher priority. After dismissing themessage distance indication appears again.
Deactivation
The rear parking assist automatically
switches off when reverse gear is
disengaged.
The front parking assist is deactivated
automatically at a speed above
7 mph.
Manual deactivation is also possible by pressing the parking assist button
r .
When the system is deactivated
manually, the LED in the button
extinguishes and Park Assist Off
pops-up in the Driver Information
Centre.
After a manual deactivation, the front- rear parking assist is activated again
if r is pressed or if reverse gear is
engaged.
The complete system can be
manually deactivated in the vehicle
personalisation menu in the
Info-Display. It remains deactivated
during the ignition cycle or until
activation in personalisation menu
again. Vehicle personalisation 3 123.
When using the trailer hitch change
the configuration settings in the
vehicle personalisation menu in the
Info-Display. Vehicle personalisation
3 123.
Fault
In the event of a fault or if the system does not work temporarily, e.g.
because of high external noise level
or other interference factors, a
message pops-up in the Driver
Information Centre.
Vehicle messages 3 122.
Basic notes on parking assist
systems9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as