
128Climate controlClimate setting menu can also be
displayed:
● by selecting Climate on the
7'' Colour Info Display or
● by pressing Í and then selecting
Climate from the menu on the
8'' Colour Info Display.
Automatic mode AUTO
Basic setting for 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.
● Air conditioning must be activated for optimal cooling and
demisting. Press A/C to switch on
air conditioning. The LED in the
button indicates activation.
● Set the preselected temperatures for driver and front
passenger using the left and right rotary ring. Recommended
temperature is 22 °C.
Manual settings Climate control system settings can
be changed by activating the
following functions:
Fan speed ZAdjust the air flow by turning rotary
ring to the desired speed. Turn
anticlockwise to decrease or turn
clockwise to increase. Fan speed can also be changed in the climate
settings menu. Press MENU to enter
the menu.
Turn rotary ring anticlockwise as far
as it will go: fan and cooling are
switched off.
To return to automatic mode, press
AUTO .
Air distribution l, M , K
Press MENU to enter the menu.

Climate control131Note
If à is pressed while the engine is
running, an Autostop will be inhibited
until à is pressed again.
If à is pressed while the engine is in
an Autostop, the engine will restart
automatically.
Stop-start system 3 139.
Deactivation of electronic climate control system
Cooling, fan and automatic mode can
be switched off by turning the rotary
ring around the AUTO button
anticlockwise.
Activation by switching on the fan or
pressing AUTO.
Heated rear window, windscreen and exterior mirrors b 3 41.
Heated seats ß 3 51.Auxiliary heater
Air heater
Quickheat is an electric auxiliary air
heater which automatically warms up
the passenger compartment more
quickly.
Parking heater
The parking heater allows to heat the vehicle's interior and to ventilate the
vehicle's interior with ambient air.
The operating status of the parking
heater is shown by an indicator with a LED.
● LED illuminates: A timer has been set.
● LED flashes: The system is operating.
The LED is extinguished at the end of
the heating operation or when the
parking heater is stopped using the
remote control.
The parking heater can be
programmed using the Graphic Info
Display / Colour Info Display.
Additionally, the parking heater can
be switched on and off using a remote control.
Note
The programmed heating /
ventilation is only activated if the
ignition is off and the vehicle is
locked.
If the charging level of the high
voltage battery is below 50%, the
programmed heating / ventilation is
not activated.
If a recurrent heating / ventilation is
programmed and two heating /
ventilation procedures are carried
out without operating the vehicle, the
programmation is deactivated.

134Driving and operatingDriving and
operatingDriving hints ............................... 135
Control of the vehicle ...............135
Steering ................................... 135
Starting and operating ...............135
New vehicle running-in ............135
Ignition switch positions ...........135
Power button ........................... 136
Starting the engine ..................137
Overrun cut-off ........................ 139
Stop-start system ....................139
Parking .................................... 141
Engine exhaust .......................... 142
Exhaust filter ............................ 142
Catalytic converter ...................143
AdBlue ..................................... 143
Automatic transmission electri‐ fied ............................................. 147
Automatic transmission ..............148
Transmission display ...............148
Gear selection ......................... 148
Manual mode ........................... 149
Electronic driving programmes 150Fault ........................................ 150
Interruption of power supply ....150
Manual transmission ..................151
Drive systems ............................ 152
Drive modes ............................ 152
All-wheel drive ......................... 152
Brakes ........................................ 153
Antilock brake system .............153
Parking brake .......................... 154
Brake assist ............................. 156
Hill start assist ......................... 156
Regenerative braking ..............156
Ride control systems .................157
Electronic Stability Control and Traction Control system .........157
Selective ride control ...............158
Sport mode .............................. 159
Driver assistance systems .........160
Cruise control .......................... 160
Speed limiter ........................... 163
Adaptive cruise control ............165
Forward collision alert .............171
Active emergency braking .......173
Front pedestrian protection .....176
Parking assist .......................... 177
Advanced parking assist .........180
Side blind spot alert .................185
Panoramic view system ...........186
Rear view camera ...................189Lane departure warning ..........191
Lane keep assist .....................192
Driver alert ............................... 194
Charging .................................... 195
Programmable charging ..........198
Charging status .......................199
Charge cord ............................. 199
Fuel ............................................ 202
Fuel for petrol engines .............202
Fuel for diesel engines ............203
Refuelling ................................ 204
Trailer hitch ................................ 206
General information .................206
Driving characteristics and towing tips .............................. 206
Trailer towing ........................... 206
Towing equipment ...................207
Trailer stability assist ...............209

136Driving and operating0: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, diesel engine is preheating, 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.
Engine start
Operate the clutch pedal (manual
transmission), the brake pedal and
press Start/Stop .Ignition on power mode without
starting the engine
Press Start/Stop without operating
clutch or brake pedal. Control
indicators illuminate and most
electrical functions are operable.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
Press Start/Stop for 5 seconds
3 137. Steering wheel locks as soon
as vehicle is stationary.
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.

Driving and operating1379Warning
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 on vehicles with
electronic key system in case of
failure
If either the electronic key fails or the
battery of the electronic key is weak,
a message may be displayed in the
Driver Information Centre.
Hold the electronic key with buttons
outside at the marking on the steering column cover as shown in the
illustration.
Operate the clutch pedal (manual
transmission), the brake pedal and
press Start/Stop .
This option is intended for
emergencies only. Replace the
electronic key battery as soon as
possible 3 23.
For unlocking or locking the doors,
see fault in radio remote control unit
or electronic key system 3 24.Starting the engine
Vehicles with ignition switch
Turn key to position 1 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.
Do not operate accelerator pedal.
Diesel engines: wait until control
indicator ! extinguishes.

142Driving and operatingbutton. Turn the steering wheel
until the steering wheel lock is
felt to engage.
● For hybrid vehicles, make sure READY is not illuminated in the
instrument cluster.
● Lock the vehicle.
● Activate the anti-theft alarm system.
● The engine cooling fans may run
after the engine has been
switched off 3 214.
Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low load or run in neutral for
approx. 30 seconds before
switching off, in order to protect
the turbocharger.
Note
In the event of an accident with
airbag deployment, the engine is
switched off automatically if the
vehicle comes to a standstill within a
certain time.
In countries with extreme low
temperatures it may be necessary to park the vehicle without applied
parking brake. Make sure to park the
vehicle on a level surface.Engine exhaust9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Exhaust filter
Automatic cleaning process
The exhaust filter system filters soot particles out of the exhaust gases.
The start of saturation of the exhaust
filter is indicated by the temporary
illumination of % or C ,
accompanied by a message in the
Driver Information Centre.

146Driving and operatingNote
When unscrewing the protective cap from the filler neck, ammonia fumes
may emerge. Do not inhale as the
fumes have a pungent smell. The
fumes are not harmful by inhalation.
The AdBlue tank should be filled
completely. This must be done if the
warning message regarding
prevention of an engine restart is
already displayed.
The vehicle must be parked on a level surface.
The filler neck for AdBlue is located
behind the fuel filler flap, which is
located at right rear side of the
vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked.
1. Remove key from ignition switch.
2. Close all doors to avoid ammonia fumes entering the interior of the
vehicle.
3. Release the fuel filler flap by pushing the flap 3 204.
4. Unscrew protective cap from the
filler neck.
5. Open AdBlue canister.
6. Mount one end of the hose on the
canister and screw the other end
on the filler neck.
7. Lift the canister until it is empty, or
until the flow from the canister has stopped. This can take up to
5 minutes.
8. Place the canister on the ground to empty the hose, wait
15 seconds.
9. Unscrew the hose from the filler neck.
10. Mount the protective cap and turn
clockwise until it engages.
Note
Dispose of AdBlue canister
according to environmental
requirements. Hose can be reused
after flushing with clear water before
AdBlue dries out.

Driving and operating147Automatic transmission
electrified
This vehicle is a plug-in hybrid
vehicle. It has a combustion engine
and an automatic transmission with
integrated electrical engine which
enables electrical driving and
charging of the battery during the
deceleration and the braking of the
vehicle. Additionally, the battery can
be charged using a cable, e.g., at
domestic electric outlets or public
charging stations. The all-wheel drive version has a second electrical
engine for the rear axle.Gear selectionP:park position, front wheels are
locked, engage only when the
vehicle is stationary and the
parking brake is appliedR:reverse gear, engage only
when the vehicle is stationaryN/P:neutralD/B:automatic mode / automatic
mode with one-pedal driving
Do not accelerate while engaging a
gear. Never depress the accelerator
pedal and brake pedal at the same
time.
When a gear is engaged, the vehicle
slowly begins to creep when the
brake is released.Shifting in / out of P
To shift into P, press P on the selector
lever.
To shift out of P:
1. Depress brake pedal and press the release button.
2. To shift into R, push the selector
forwards beyond the point of
resistance.
To shift into D, push the selector
backwards beyond the point of
resistance.
To shift into N, push the selector
forwards or backwards without
passing the point of resistance.Shifting into R 1. Depress the brake pedal and press the release button.
2. Shift into R using the gear
selector.Shifting into / out of B
B can only be activated if D is
selected.