Lighting101Automatic light control
When the automatic light control
function is switched on and the
engine is running, the system
switches between daytime running
lights and headlights automatically
depending on the external lighting
conditions and information given by
the wiper system.
Make sure the sensor is not blocked
3 10, 3 35.
Daytime running light 3 103.
Automatic headlight activation During poor lighting conditions
headlights are switched on.
Additionally, headlights are switched
on if the windscreen wipers have
been activated for several wipes.
LED headlights 3 103.
Tunnel detection
When a tunnel is entered headlights
are switched on immediately.
High beam
Push to switch from low to high beam.Pull to deactivate high beam.
High beam assist 3 101.
High beam assist
The camera in the windscreen
detects the lights of oncoming or
preceding vehicles. Once activated,
high beam assist remains active and
switches high beam on and off
depending on surrounding
conditions. The latest setting of the
high beam assist will remain after the ignition is switched on again.
This feature automatically activates
the high beam in the dark when
vehicle speed is faster than 25 km/h.
It switches automatically back to low
beam when:
● The camera in the windscreen detects the lights of oncoming or
preceding vehicles.
● The vehicle speed drops below 15 km/h.
● It is foggy or snowy.
● Front or rear fog lights are switched on.
● Driving in urban areas.
If there are no restrictions detected,
the system switches back to high
beam.
Lighting105Rear fog light
Operated by pressing ø.
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 the lever all the way up (right parking lights) or down (left
parking lights).
Confirmed by a signal and the
corresponding turn light 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.
Lighting107
Illustration shows rear reading lights.Sun visor lights
Illuminates when the cover is opened.
Lighting features
Centre console lighting A spotlight integrated in the overheadconsole illuminates the centre
console when headlights are
switched on.
Entry lighting Welcome lighting
Some or all of the following lights are
switched on for a short time by
unlocking the vehicle:
● headlights
● tail lights
● number plate lights
● instrument panel light
● interior lights
The number of activated lights
depends on the surrounding light
conditions.
The lighting switches off immediately
when the ignition is switched on.This function can be activated or
deactivated in the vehicle
personalisation.
Vehicle personalisation 3 95.
The following lights will additionally
switch on when the driver's door is
opened:
● illumination of some switches
● Driver Information Centre
● door pocket lights
Exit lighting The following lights are switched on if
the ignition is switched off:
● interior lights
● instrument panel light
They will switch off automatically after
a delay. This function works only in
the dark.
108LightingBattery discharge protection
Vehicle battery state of charge
function
The function guarantees longestvehicle battery life via a generator
with controllable power output and
optimised power distribution.
To prevent discharge of the vehicle
battery when driving, the following
systems are reduced automatically in two stages and finally switched off:
● auxiliary heater
● heated rear window and heated mirrors
● heated seats
● fan
In the second stage, a message
which confirms the activation of the
vehicle battery discharge protection
will be displayed in the Driver
Information Centre.Switching off interior lights
To prevent discharge of the vehicle
battery when the ignition is switched off, some interior lights are switched
off automatically after some time.
Driving and operating121Driving and
operatingDriving hints ............................... 122
Control of the vehicle ...............122
Steering ................................... 122
Starting and operating ...............122
New vehicle running-in ............122
Ignition switch positions ...........123
Power button ........................... 123
Starting the engine ..................124
Overrun cut-off ........................ 126
Stop-start system ....................126
Parking .................................... 128
Engine exhaust .......................... 129
Exhaust filter ............................ 129
Catalytic converter ...................130
AdBlue ..................................... 130
Automatic transmission ..............133
Transmission display ...............133
Gear selection ......................... 134
Manual mode ........................... 135
Electronic driving programmes 135
Fault ........................................ 135
Interruption of power supply ....135
Manual transmission ..................136Brakes........................................ 137
Antilock brake system .............137
Parking brake .......................... 138
Brake assist ............................. 139
Hill start assist ......................... 139
Ride control systems .................139
Electronic Stability Control and Traction Control system .........139
Driver assistance systems .........140
Cruise control .......................... 140
Speed limiter ........................... 143
Forward collision alert .............145
Active emergency braking .......147
Front pedestrian protection .....149
Parking assist .......................... 150
Advanced parking assist .........153
Side blind spot alert .................158
Panoramic view system ...........159
Rear view camera ...................162
Lane departure warning ..........163
Driver alert ............................... 164
Fuel ............................................ 166
Fuel for petrol engines .............166
Fuel for diesel engines ............166
Refuelling ................................ 167
Trailer hitch ................................ 169
General information .................169
Driving characteristics and towing tips .............................. 169Trailer towing........................... 170
Towing equipment ...................170
Driving and operating123Ignition switch positions0:ignition off: some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:ignition on power mode: ignition
is on, control indicators illuminate and most electrical functions are
operable2:engine start: release key after
engine has been started
Steering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.
9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
The electronic key must be inside the
vehicle.
Ignition on power mode without
starting the engine
Press Start/Stop without operating a
pedal. Control indicators illuminate
and most electrical functions are
operable.Engine start
Operate the clutch pedal, the brake
pedal and press Start/Stop. Release
the button after starting procedure
begins.Engine and ignition off
Press Start/Stop briefly in each mode
or when engine is running and vehicle
is stationary. Some functions remain
active until driver's door is opened,
provided the ignition was on
previously.
Emergency shut off during driving
If the engine needs to be switched offduring driving in case of emergency,
press Start/Stop for 5 seconds.
9Danger
Switching off the engine during
driving may cause loss of power
support for brake and steering
systems. Assistance systems and
airbag systems are disabled.
Lighting and brake lights will
extinguish. Therefore power down
124Driving and operatingthe engine and ignition while
driving only when required in case of emergency.
Steering wheel lock
The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
To release steering wheel lock, open
and close driver's door and switch the ignition on power mode or start the
engine directly.
9 Warning
If the vehicle battery is discharged,
the vehicle must not be towed,
tow-started or jump-started as the
steering wheel lock cannot be
disengaged.
Operation in case of failure
If either the electronic key fails or the
battery of the electronic key is weak,
the Driver Information Centre may
display No Remote Detected or
Replace Battery in Remote Key when
you try to start the vehicle.
Hold the electronic key with buttons
outside at the marking on the steering column cover as shown in the
illustration.
Operate the clutch pedal, the brake
pedal and press Start/Stop. Release
the button after starting procedure begins.
This option is intended for
emergencies only. Replace the
electronic key battery as soon as
possible 3 22.
For unlocking or locking the doors,
see fault in radio remote control unit
or electronic key system 3 23.
Starting the engine
Vehicles with ignition switch
● Turn key to position 1.
● Move the steering wheel slightly to release the steering wheel
lock.
● Manual transmission: operate clutch and brake pedal.
● Automatic transmission: operate brake pedal and move selector
lever to P or N.
Driving and operating127The engine will be switched off whilethe ignition stays on.Vehicles with automatic transmission
If the vehicle is at a standstill with
depressed brake pedal, Autostop is
activated automatically.
The engine will be switched off while
the ignition stays on.
The stop-start system will be disabled
on inclines of 12% or more.
Indication
An Autostop is indicated by control
indicator D.
During an Autostop, the heating and
brake performance will be
maintained.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled.
● The stop-start system is not manually deactivated.
● The driver's door is closed or the driver's seat belt is fastened.
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed up.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is not too low or too high.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.Note
The Autostop may be inhibited for
several hours after a battery
replacement or reconnection.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 110.
If an autostop is temporarily not
available, D flashes green 3 86.
Immediately after driving at a higher
speed an Autostop may be inhibited.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched to a power
saving mode. The fan speed of the
climate control system is reduced to
save power.