Climate control137To return to automatic air distribution,
press AUTO .
Temperature preselection
Set the preselected temperatures
separately for the driver and the front
passenger to the desired value using
the left and right switch for
adjustusting the temperature.
Recommended temperature is 22 °C .
Temperature is indicated in the display beside the switches for
adjusting the temperature.
If the minimum temperature Lo is set,
the climate control system runs at maximum cooling, if cooling A/C is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at
maximum heating.
Note
If A/C is switched on, reducing the
set cabin temperature can cause the engine to restart from an Autostop or
inhibit an Autostop.
Stop-start system 3 148.
Dual zone temperature
synchronisation MONO
Press MONO to link passenger side
temperature setting to the driver side / to remove the linking of the
passenger side temperature setting
to the driver side. The passenger side temperature setting is linked to the
driver side if the LED in the button
MONO is not illuminated.Air conditioning A/C
Press A/C to switch on cooling.
Cooling is only functional when the
engine is running and climate control
fan is switched on.
Press A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) when outside
temperature is above a specific level. Therefore condensation may form
and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
138Climate controlManual air recirculation u
Press u to activate the air
recirculation mode. u is shown in the
display to indicate activation.
Press u again to deactivate
recirculation mode.
9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling, the
air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the occupants to
feel drowsy.
In warm and very humid ambient air
conditions, the windscreen may mist
up from outside, when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate l.
Demisting and defrosting the
windows h
●
Press h. The LED in the button
illuminates to indicate activation.
● Air conditioning and automatic mode are automatically switched
on. The LED in the button A/C
illuminates, AUTO is shown in the
display.
● Temperature and air distribution are set automatically and the fan
runs at high speed.
● Switch on heated rear window e.
● Switch on heated windscreen ,.
● To return to previous mode, press h again.
Note
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If V is pressed while the engine is
in an Autostop, the engine will restart automatically.
Stop-start system 3 148.
Driving and operating143Driving and
operatingDriving hints ............................... 144
Control of the vehicle ...............144
Steering ................................... 144
Starting and operating ...............144
New vehicle running-in ............144
Ignition switch positions ...........144
Power button ........................... 145
Power saving mode .................146
Starting the engine ..................147
Overrun cut-off ........................ 148
Stop-start system ....................148
Parking .................................... 151
Engine exhaust .......................... 152
Exhaust filter ............................ 152
Catalytic converter ...................153
AdBlue ..................................... 153
Automatic transmission ..............156
Transmission display ...............156
Selector lever .......................... 157
Manual mode ........................... 157
Electronic driving programmes 158
Fault ........................................ 159
Eco mode ................................ 159Manual transmission ..................159
Brakes ........................................ 160
Antilock brake system .............160
Parking brake .......................... 161
Brake assist ............................. 164
Hill start assist ......................... 164
Ride control systems .................164
Electronic Stability Control and Traction Control system .........164
Descent control system ...........165
Selective ride control ...............167
Driver assistance systems .........169
Cruise control .......................... 169
Speed limiter ........................... 171
Adaptive cruise control ............173
Forward collision alert .............180
Active emergency braking .......181
Front pedestrian protection .....184
Parking assist .......................... 185
Advanced parking assist .........189
Side blind spot alert .................193
Panoramic view system ...........195
Rear view camera ...................197
Lane keep assist .....................198
Driver alert ............................... 201
Fuel ............................................ 202
Fuel for petrol engines .............202
Fuel for diesel engines ............202
Refuelling ................................ 204Trailer hitch................................ 205
General information .................205
Driving characteristics and towing tips .............................. 205
Trailer towing ........................... 206
Towing equipment ...................206
Trailer stability assist ...............209
144Driving and operatingDriving 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 3 148.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must
be increased. This will be achieved by an idle boost which may be audible.
A message appears in the Driver
Information Centre.
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 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 3 152.
Autostop may be inhibited to allow
charging of the vehicle battery.
Ignition switch positions Turn key:
Driving and operating1450: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 about three
seconds 3 147. 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.
146Driving and operating9Warning
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 25.
Power saving mode
This mode deactivates electrical
consumers to avoid excessive
discharging of the vehicle battery.
These consumers, such as the
infotainment system, windscreen
wipers, low beam headlights,
courtesy light, etc. can be used for a
total maximum time of about
40 minutes after ignition is switched
off.Changing into power saving
mode
When power saving mode is
activated, a message appears in the
Driver Information Centre indicating
Power saving mode .
An active telephone call using the
hands-free option will be maintained
for around 10 minutes longer.
Deactivating power saving mode
Power saving mode is deactivated
automatically when the engine is
restarted. Run the engine for a
sufficient charge:
● for less than 10 minutes to use the consumers for approx.
5 minutes
● for more than 10 minutes to use the consumers for up to approx.
30 minutes
Driving and operating147Starting 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.
Turn 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
3 148.
Automatic transmission: during an
Autostop, the engine can be started
by releasing the brake pedal 3 148.
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 3 148.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake
pedal 3 148.
148Driving and operatingEmergency shut off during driving
If the engine needs to be switched off during driving in case of emergency,
press Start/Stop for five 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.
Starting the vehicle at low
temperatures
Starting the engine without additional
heaters is possible down to -25 °С for diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct fuel, performed services and a
sufficiently charged vehicle battery.
With temperatures below -30 °C the
automatic transmission requires a
warming phase of approx.
five minutes. The selector lever must
be in position P.
Heating functionalities Note
Individual heating functionalities,
such as heated seats or heated
steering wheel, may be temporarily
unavailable in the event of electrical
loading constraints. Functions will
be resumed after some minutes.Turbo engine warm-up
Upon start-up, engine available
torque may be limited for a short time, especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully
protect the engine.
Overrun cut-off
The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but accelerator pedal is released.
Depending on driving conditions, the
overrun cut-off may be deactivated.
Stop-start system The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the
vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a traffic jam.