Page 105 of 249

Instruments and controls103
■ If a warning message appears inthe Driver Information Centre or
Info-Display.
■ If the parking assist detects an object.
■ If unintended lane change occurs.
■ If the reverse gear is engaged and the rear end carrier extended.
■ If the diesel particle filter has reached the maximum filling level.
When the vehicle is parked and/ or the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
During an Autostop ■ If the driver's door is opened.
Battery voltage Uplevel-Display
When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.Base- and Midlevel-Display
When the vehicle battery voltage is
running low, a warning code 174 will appear in the Driver Information
Centre.
1. Switch off immediately electrical consumers which are not requiredfor a safe ride, e.g. seat heating,
heated rear and front window or
other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message or warning
code will disappear after the engine
has been started twice consecutively
without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault remedied by a workshop.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings in the Info-Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 22.
Depending on vehicle equipment and
country-specific regulations, some of
the functions described below might
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings Graphic-Info-Display
Press the CONFIG button for the
Settings menu.
Turn the MENU-TUNE control to
move to the desired setup menu, and
then press MENU-TUNE button.
Page 117 of 249

Lighting115
Operate rocker switch:centre
position w=automatic switching on
when opening a door.
Turns off with delaypress I=permanent onpress 0=permanent off
Front courtesy light with reading
lights
When opening a door, the courtesy
light automatically switches on and
then off after a delay.
Pressing c switches courtesy light
on or off manually.
Switching on ignition will turn off
courtesy light.
When exterior lighting has been on
before, courtesy light will turn on
when ignition is switched off.
Notice
In the event of an accident with
airbag deployment the courtesy
lights are turned on automatically.
Rear courtesy lights
Left and right lamps are separately
switchable.
Operate rocker switches:centre position=automatic
switching on when
opening a door.
Turns off with
delaypress I=permanent onpress 0=permanent off
Dome light
Spotlight incorporated in the inside
mirror housing comes on when
headlights are switched on.
Dome light illuminates gear shifting
console indirectly.
Ambient light The ambient light consists of indirect
red lights in the doors, in the
instrument panel below the heating and ventilation unit and in the
passenger foot well. It can be dimmed
with the thumb wheel A together with
the instrument panel illumination
3 114.
Ambient light comes on automatically when switching off ignition and
extinguishes after opening a door.
Page 120 of 249
118Climate controlClimate controlClimate control systems ............. 118
Air vents ..................................... 126
Maintenance .............................. 126Climate control systems
Heating and ventilation
system
Controls for: ■ temperature
■ fan speed
■ air distribution
Heated rear window Ü 3 31.
Heated seats ß 3 38.
Heated steering wheel * 3 75.
Temperaturered=warmblue=cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed Adjust the air flow by switching the fan
to the desired speed.
Air distribution
M=to head areaL=to head area and foot wellK=to foot wellJ=to windscreen, front door
windows and foot welll=to windscreen and front door
windows
Intermediate settings are possible.
Page 121 of 249

Climate control119
Demisting and defrosting the
windows
■ Set temperature control to warmest
level.
■ Set fan speed to highest speed.
■ Set air distribution control to l.
■ Switch on heated rear window Ü.
■ Open side air vents as required and
direct them towards door windows.
■ For simultaneous warming of the foot well, set air distribution control
to J.
Air conditioning system
Controls for:
■ temperature
■ fan speed
■ air distribution
n=cooling4=air recirculationÜ=heated rear window 3 31
Heated seats ß 3 38.
Heated steering wheel * 3 75.
Temperature
red=warmblue=coldHeating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed Adjust the air flow by switching the fan
to the desired speed.
Air distributionM=to head areaL=to head area and foot wellK=to foot wellJ=to windscreen, front door
windows and foot welll=to windscreen and front door
windows (air conditioning is
activated in the background to
help preventing windows from
fogging)
Intermediate settings are possible.
Page 125 of 249

Climate control123
If the minimum temperature Lo is set,
the climate control system runs at
maximum cooling, if cooling n is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at
maximum heating.
Notice
If n is switched on, reducing the set
cabin temperature can cause the
engine to restart from an Autostop or inhibit an Autostop.
Demisting and defrosting the
windows V
■
Press button V. Activation is
indicated by illumination of the LED
in the button.
■ Temperature and air distribution are set automatically and the fan
runs at high speed.
■ Switch on heated rear window Ü.
■ To return to previous mode: press button V, to return to Automatic
mode: press button AUTO.
Setting of automatic rear window
heating can be changed in the
Info-Display. Vehicle personalisation
3 103.
Notice
If the V button is pressed while the
engine is running, an Autostop will
be inhibited until the V button is
pressed again.
If the s button is pressed with the fan
switched on and the engine running,
an Autostop will be inhibited until the s button is pressed again or until the
fan is switched off.
If the V button is pressed while the
engine is in an Autostop, the engine will restart automatically.
If the s button is pressed with the fan
switched on while the engine is in an Autostop, the engine will restart
automatically.
Stop-start system 3 131.
Page 129 of 249
Climate control127Air 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 131 of 249

Driving and operating129Starting 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 and the cleaning process of the diesel particle filter may take
place more often.
Diesel particle filter 3 134.
Autostop may be inhibited to allow for
charging the vehicle battery.
Ignition switch positions
Turn key:0=ignition off: Some functions
remain active until key is removed or driver's door is
opened, if 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 light up and the
most electrical functions are
operable3=engine start: Release key after
starting procedure beginsSteering wheel lock
Remove key from the ignition switch
and turn steering wheel until it
engages.
Retained power off
The following electronic systems can
work until the driver's door is opened
or at the latest for 10 minutes after the
ignition is switched off:
■ power windows
■ power outlets
■ power sunroof
Power to the Infotainment system will continue to operate for 30 minutes or
until the key is removed from the
ignition switch, regardless of whether
any door will be opened.
Page 132 of 249

130Driving and operatingStarting the engine
Turn key to position 1 to release the
steering wheel lock.
Manual transmission: operate clutch
and brake pedal.
Manual transmission automated:
operate brake pedal.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate the accelerator pedal. Diesel engine: turn the key to position2 for preheating until control
indicator ! extinguishes.
Turn key briefly to position 3 and
release: an automatic procedure operates the starter after a brief
delay, until the engine is running. See
Automatic Starter Control.
Before restarting or to switch off the
engine, turn the key back to position
0 .
During an Autostop, the engine can
be started by depressing the clutch
pedal.
Starting the vehicle at low
temperatures
The start of the engine without
additional heaters is possible down to -25 °С for diesel engines and -30 °C
for petrol engines.
Diesel engines
The start of the engine without
additional heaters is possible down to -25 °С.
Petrol engines
The start of the engine without
additional heaters is possible down to
-30 °C.Required is an engine oil with the
correct viscosity, the correct fuel,
performed services and a sufficiently
charged battery.
With temperatures below -30 °C the
automatic transmission need a
warming phase of approx. five
minutes. The selector lever must be
in position P.
Automatic starter control This function controls the engine
starting procedure. The driver does
not have to hold the key in position 3.
Once applied, the system will go on starting automatically until the engine is running. Because of the checking
procedure, the engine starts running
after a short delay.
Possible reasons for a non-starting
engine:
■ clutch pedal not operated (manual transmission)
■ brake pedal not operated or selector lever not in P or N
(automatic transmission)
■ timeout occurred