Page 129 of 273
Climate control127Note
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 3 135.
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.Air vents
Adjustable air vents
Air vents in the instrument panel
Direct the flow of air by tilting and
swivelling the slats.
To close the vent, swivel the slats
inwards.
Page 130 of 273
128Climate controlOuter air vents in the instrument
panel
Direct the flow of air by tilting and
swivelling the slats.
To close the vent, swivel the slats
outwards.
At least two air vents must be open
while cooling is on.
9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in case of an
accident.
Fixed air vents
Additional air vents are located
beneath the windscreen and door windows and in the foot wells.
Glovebox cooler The air conditioning system draws
cooled air into the glovebox through a
noozle.
Move the slider back or forth in order
to enable or disable glovebox cooling.
Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Page 131 of 273
Climate control129Air conditioning regular
operation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
Service For optimal cooling performance, it is
recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance check
Page 132 of 273

130Driving and operatingDriving and
operatingDriving hints ............................... 131
Control of the vehicle ...............131
Steering ................................... 131
Starting and operating ...............131
New vehicle running-in ............131
Ignition switch positions ...........131
Power button ........................... 132
Starting the engine ..................133
Overrun cut-off ........................ 135
Stop-start system ....................135
Parking .................................... 137
Engine exhaust .......................... 138
Exhaust filter ............................ 138
Catalytic converter ...................139
AdBlue ..................................... 139
Automatic transmission ..............143
Transmission display ...............143
Gear selection ......................... 143
Manual mode ........................... 144
Electronic driving programmes 144
Fault ........................................ 145
Interruption of power supply ....145
Manual transmission ..................146Brakes........................................ 146
Antilock brake system .............146
Parking brake .......................... 147
Brake assist ............................. 149
Hill start assist ......................... 149
Ride control systems .................150
Electronic Stability Control and Traction Control system .........150
Selective ride control ...............151
Sport mode .............................. 152
Driver assistance systems .........153
Cruise control .......................... 153
Speed limiter ........................... 156
Adaptive cruise control ............158
Forward collision alert .............164
Active emergency braking .......166
Front pedestrian protection .....169
Parking assist .......................... 170
Advanced parking assist .........173
Side blind spot alert .................178
Panoramic view system ...........179
Rear view camera ...................182
Lane departure warning ..........184
Lane keep assist .....................185
Driver alert ............................... 187
Fuel ............................................ 188
Fuel for petrol engines .............188
Fuel for diesel engines ............189
Refuelling ................................ 190Trailer hitch................................ 192
General information .................192
Driving characteristics and towing tips .............................. 192
Trailer towing ........................... 192
Towing equipment ...................193
Trailer stability assist ...............195
Page 133 of 273

Driving and operating131Driving hints
Control of the vehicle
Never coast with engine not
running
Many systems will not function in this
situation ( e.g. brake servo unit, power
steering). Driving in this manner is a danger to yourself and others.
All systems function during an
Autostop.
Stop-start system 3 135.
Pedals
To ensure the pedal travel is uninhibited, there must be no mats in the area of the pedals.
Use only floor mats, which fit properly
and are fixed by the retainers on the
driver side.Steering
If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and enginge oil evaporating off the exhaust system.Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period, fuel and
engine oil consumption may be
higher.
Additionally, the cleaning process of
the exhaust filter may take place more
often.
Exhaust filter 3 138.
Ignition switch positions Turn key:
Page 134 of 273

132Driving 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
3 133. 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.
Page 135 of 273

Driving and operating1339Warning
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.
Page 136 of 273

134Driving and operatingTurn key briefly to position 2 and
release after engine has been
started.
Manual transmission: during an
Autostop, the engine can be started
by depressing the clutch pedal
3 135.
Automatic transmission: during an
Autostop, the engine can be started
by releasing the brake pedal 3 135.
Vehicles with power button● 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.
● Press Start/Stop button.
● Release button after starting procedure begins. Diesel engine
starts after control indicator ! for
preheating extinguishes.
● Before restarting or to switch off the engine when vehicle is
stationary, press Start/Stop once
more briefly.
To start the engine during an
Autostop:
● Manual transmission: during an Autostop, the engine can be
started by depressing the clutch
pedal 3 135.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake
pedal 3 135.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 the engine and ignition while
driving only when required in case of emergency.