Page 139 of 303
Lighting137Interior lights
During entry and exit of the vehicle,
the front and rear courtesy lights
automatically switch on and then off
after a delay.
Notice
In the event of an accident with
airbag deployment the courtesy
lights are turned on automatically.
Front courtesy lightw:automatic switching on
and offpress u:onpress v:offRear courtesy lights
Illuminate in conjunction with the front courtesy light.
Reading lights
Operated by pressing s and t in the
courtesy lights.
Sun visor lights
Illuminates when the cover is opened.
Page 141 of 303

Lighting139Exit lighting is switched off
immediately if the indicator lever is
pulled while the driver's door is open.LED headlights
Path lighting is activated, when the
ignition is switched off and the driver's door is opened.
This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in Settings
I Vehicle in the Info Display.
Info Display 3 120.
Vehicle personalisation 3 123.
The settings can be saved for the key being used 3 24.
Battery discharge protection
Vehicle battery state of charge
function
The function guarantees longest
vehicle 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 mirrors
● heated steering wheel
● 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 electric lights
To prevent discharge of the vehicle
battery when the ignition is switched off, some interior lights are switched
off automatically after some time.
Page 142 of 303

140Climate controlClimate controlClimate control systems.............140
Air conditioning system ...........140
Electronic climate control system .................................... 142
Auxiliary heater ........................148
Air vents ..................................... 148
Adjustable air vents .................148
Fixed air vents ......................... 148
Maintenance .............................. 149
Air intake ................................. 149
Air conditioning regular operation ................................ 149
Service .................................... 149Climate control systems
Air conditioning system
Illustration shows functions which
may not be available for your
particular vehicle.
Controls for: ● Fan speed E
● Temperature
● Air distribution §,x and y
● Air conditioning A/C
● Demisting and defrosting %
● Air recirculation n
● Heated rear window and exterior
mirrors f
● Heated seats ß
Heated rear window Ü 3 44.
Heated exterior mirrors Ü 3 40.
Heated seats ß 3 55.
Ventilated seats A 3 55.
Heated steering wheel A 3 92.
Cooling A/C
Press A/C to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Page 144 of 303

142Climate controlDemisting and defrosting the
windows V
●
Press V: the air distribution is
directed towards the windscreen.
● Set fan speed to highest level.
● Set temperature control to warmest level.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards the doorwindows.
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If
l is pressed with the fan switched
on and the engine running, an
Autostop will be inhibited until l is
pressed again or until the fan is switched off.
If V is pressed while the engine is
in an Autostop, the engine will restart automatically.
If l is pressed with the fan switched
on while the engine is in an
Autostop, the engine will restart
automatically.
Stop-start system 3 156.
Electronic climate control system
The dual zone climate control allows
different temperatures for driver side
and front passenger side.
In automatic mode, temperature, fan
speed and air distribution are
regulated automatically.
Illustration shows functions which
may not be available for your
particular vehicle.
Controls for: ● Rotary knob for temperature on driver side
● Rotary knob for temperature on passenger side
● Climate control ON/OFF
● Heated windscreen 9
● Air conditioning A/C
● Manual air recirculation n
● Air distribution w, u and v
● Demisting and defrosting $
Page 145 of 303
Climate control143● Heated rear window and exteriormirrors f
● Dual zone temperature synchronisation SYNC
● Heated seats q
● Fan speed increase y and
decrease x
● Ventilated seats r
● Steering wheel heating Z
● Automatic mode AUTO
Heated rear window f 3 44.
Heated exterior mirrors Ü 3 40.
Heated seats q 3 55.
Ventilated seats r 3 55.
Heated steering wheel Z 3 92.
Each change of settings is shown in
the Info Display for a few seconds.
The electronic climate control system
is only fully operational when the
engine is running.
Automatic mode AUTO
Basic settings for automatic control
with maximum comfort:
● Press AUTO, the air distribution
and fan speed are regulated
automatically.
● Open all air vents to allow optimised air distribution in
automatic mode.
Page 147 of 303

Climate control145Demisting and defrosting the
windows $
● Press $. The LED in the button
illuminates to indicate activation.
● Temperature and air distribution are set automatically and the fan
runs at high speed.
● Switch on heated rear window f.
● Switch on heated windscreen 9 if available.
● To return to previous mode: press $, to return to automatic
mode: press AUTO.
Settings of automatic rear window
heating can be changed in the
Settings menu in the Info Display.
Vehicle personalisation 3 123.
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If l is pressed with the fan switched
on and the engine running, an
Autostop will be inhibited until l is
pressed again or until the fan is
switched off.
If V is pressed while the engine is
in an Autostop, the engine will restart automatically.
If l is pressed with the fan switched
on while the engine is in an
Autostop, the engine will restart
automatically.
Stop-start system 3 156.Deactivation or activation of
Electronic climate control system
ON/OFF
Cooling, fan and automatic mode can
be switched off by pressing ON/OFF.
When the system is deactivated, the
LED in the button ON/OFF is not
illuminated.
Activation by pressing ON/OFF
again, A/C or AUTO . The LED in the
button illuminates to indicate
activation.
Page 148 of 303

146Climate controlVersion with heated
windscreen 9
If the vehicle is equipped with heated
windscreen, button ON/OFF is
replaced by button 9.
Climate control system will then
switched off by the left y. Switch on
by pressing right y.
Manual settings Climate control system settings can
be changed by activating the buttons
and rotary knobs as described below.
Changing a setting will deactivate the
automatic mode.
Fan speed y
Press left
y to decrease or right y
to increase fan speed. The fan speed
is indicated by the number of LEDs in the button.
Pressing the left y for longer: fan and
cooling are switched off.
Pressing the right y for longer: the
fan runs at maximum speed.
To return to automatic mode: Press AUTO .
Air distribution w, u , v
Press the appropriate button for the
desired adjustment. The LED in the
button illuminates to indicate
activation.
w:to windscreen and front door
windows (air conditioning is
activated in the background to
help preventing windows from
fogging)u:to head area and rear seats via
adjustable air ventsv:to front and rear foot well and
windscreen
All combinations are possible.
Page 152 of 303

150Driving and operatingDriving and
operatingDriving hints ............................... 151
Control of the vehicle ...............151
Steering ................................... 151
Starting and operating ...............151
New vehicle running-in ............151
Ignition switch positions ...........151
Power button ........................... 152
Retained power off ..................154
Starting the engine ..................154
Overrun cut-off ........................ 156
Stop-start system ....................156
Parking .................................... 159
Engine exhaust .......................... 161
Exhaust filter ............................ 161
Catalytic converter ...................162
AdBlue ..................................... 162
Automatic transmission ..............165
Transmission display ...............166
Gear selection ......................... 166
Manual mode ........................... 167
Electronic driving programmes 167
Fault ........................................ 168
Interruption of power supply ....168Manual transmission ..................169
Brakes ........................................ 169
Antilock brake system .............169
Parking brake .......................... 170
Brake assist ............................. 172
Hill start assist ......................... 172
Ride control systems .................172
Traction Control system ..........172
Electronic Stability Control ......173
Driver assistance systems .........175
Cruise control .......................... 175
Speed limiter ........................... 177
Adaptive cruise control ............178
Forward collision alert .............186
Following distance indication ...188
Active emergency braking .......189
Front pedestrian protection .....192
Parking assist .......................... 194
Side blind spot alert .................202
Rear view camera ...................203
Traffic sign assistant ................205
Lane keep assist .....................209
Fuel ............................................ 211
Fuel for petrol engines .............211
Fuel for diesel engines ............213
Refuelling ................................ 213
Trailer hitch ................................ 215
General information .................215Driving characteristics and
towing tips .............................. 216
Trailer towing ........................... 216
Towing equipment ...................217
Trailer stability assist ...............220