Climate control145● Press A/C to switch on optimal
cooling and demisting. The LED
in the button illuminates to
indicate activation.
● Set the preselected temperatures for driver and front
passenger using the left and right rotary knob. Recommended
temperature is 22 °C.
The fan speed regulation in automatic mode can be changed in the Settings menu.
Vehicle personalisation 3 124.
Temperature preselectionSet temperatures to the desired
value. The knob on the passenger
side changes the temperature for the
passenger side.The knob on the driver's side changes the temperature for the driver's side or for both sides
depending on activation of
synchronisation SYNC.
The selected temperature is indicated in the display of the knob.
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 3 157.Dual zone temperature
synchronisation SYNC
Press SYNC to link passenger side
temperature setting to the driver side.
The LED in the button illuminates to
indicate activation.
When passenger side settings will be
adjusted, synchronisation is
deactivated and the LED
extinguishes.
146Climate controlDemisting 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 3 124.
Note
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 3 157.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.
148Climate controlReturn to automatic air distribution:
press AUTO .
Cooling A/C
Press A/C to switch on cooling. The
LED in the button illuminates to
indicate activation. 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.
When the cooling system is switched
off, no engine restart will be
requested by the climate control
system during an Autostop.
Exception: defrost system is activated and outside temperature above 0 °C
requests a restart.
Stop-start system 3 157.
The display will indicate A/C ON when
cooling is activated or A/C OFF when
the cooling is deactivated.
Manual air recirculation nPress n to activate the air
recirculation mode. The LED in the
button illuminates to indicate
activation.
Press n 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 vehicle
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 w.
Driving and operating151Driving and
operatingDriving hints ............................... 152
Control of the vehicle ...............152
Steering ................................... 152
Starting and operating ...............152
New vehicle running-in ............152
Ignition switch positions ...........152
Power button ........................... 153
Retained power off ..................155
Starting the engine ..................155
Overrun cut-off ........................ 157
Stop-start system ....................157
Parking .................................... 160
Engine exhaust .......................... 161
Exhaust filter ............................ 161
Catalytic converter ...................163
AdBlue ..................................... 163
Automatic transmission ..............166
Transmission display ...............166
Gear selection ......................... 167
Manual mode ........................... 168
Electronic driving programmes 168
Fault ........................................ 168
Interruption of power supply ....169Manual transmission ..................169
Brakes ........................................ 170
Antilock brake system .............170
Parking brake .......................... 171
Brake assist ............................. 172
Hill start assist ......................... 172
Ride control systems .................173
Traction Control system ..........173
Electronic Stability Control ......174
Driver assistance systems .........176
Cruise control .......................... 176
Speed limiter ........................... 177
Adaptive cruise control ............179
Forward collision alert .............187
Following distance indication ...189
Active emergency braking .......190
Front pedestrian protection .....193
Parking assist .......................... 195
Side blind spot alert .................203
Rear view camera ...................204
Traffic sign assistant ................206
Lane keep assist .....................210
Fuel ............................................ 212
Fuel for petrol engines .............212
Fuel for diesel engines ............214
Refuelling ................................ 214
Trailer hitch ................................ 216
General information .................216Driving characteristics and
towing tips .............................. 217
Trailer towing ........................... 217
Towing equipment ...................218
Trailer stability assist ...............221
152Driving 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 3 157.
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 3 161.
Ignition switch positions
Turn key:
Driving and operating1530:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:accessory power mode: Steering wheel lock released, some
electrical functions are operable,
ignition is off2:ignition on power mode: Ignition
is on, diesel engine is preheating.
Control indicators illuminate and
most electrical functions are
operable. To turn the key from
position 2 to 1 or 0, first push the
key all the way in towards the steering column.3:engine start: Release key after
starting procedure begins
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
Electronic key must be inside the
vehicle.
Accessory power mode
Press Engine Start/Stop once without
operating clutch or brake pedal. The yellow LED in the button illuminates.
Steering wheel lock is released and
some electrical functions are
operable, ignition is off.Ignition on power mode
Press and hold Engine Start/Stop for
6 seconds without operating clutch or brake pedal. The green LED in the
button illuminates, diesel engine is
154Driving and operatingpreheating. Control indicators
illuminate and most electrical
functions are operable.Engine start
Press Engine Start/Stop briefly while:
● manual transmission: operating clutch pedal,
● automatic transmission: operating brake pedal with
selector lever in P or N.
Starting the engine 3 155.Ignition off
Press Engine Start/Stop briefly when
Autostop is activated or when engine is running and vehicle is stationary.
Automatic transmission: apply the
parking brake and engage P.
Press Engine Start/Stop briefly
without operating clutch or brake pedal when in ignition on power
mode.
Some functions remain active until
driver's door is opened, provided the
ignition was on previously.Emergency shut off during driving
Press Engine Start/Stop for longer
than 2 seconds or press twice briefly
within 5 seconds 3 155.
Steering wheel lock The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
● The driver's door is opened.
To release steering wheel lock, open
and close driver's door and switch on accessory 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 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,
the Driver Information Centre may
display No Remote Detected or
Replace Battery in Remote Key when
you try to start the vehicle.
Place the electronic key solely
centred in the transmitter area in
longitudinal direction flat with buttons
upside as shown in the illustration.
Illustrations show different versions.
Driving and operating155
Other objects, e.g. other keys,
transponder, tags, coins etc. must be removed from the centre console.
Depress the clutch pedal (manual
transmission) or the brake pedal
(automatic transmission) and press
Engine Start/Stop .
To switch off the engine, press
Engine Start/Stop again. Remove the
electronic key from the centre
console.
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.
Retained power off
The following electronic systems can
work until the driver's door is opened
or for ten minutes after the ignition is
switched off:
● power windows
● sunroof
● power outletsStarting 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: turn the key to
position 2 for preheating and wait until
control indicator ! extinguishes.