152LightingExit lighting is switched off
immediately if the turn signal lever is
pulled while the driver's door is open.
Activation, deactivation and duration of this function can be changed in the Settings menu in the Info-Display.
Vehicle personalisation 3 130.
The settings can be saved for the key
being used 3 22.
Battery discharge protection Vehicle battery state of charge
function
The function guarantees longest
vehicle battery life via a generator
with controllable power output and
optimised power distribution.
To prevent discharge of the vehicle
battery when driving, the following
systems are reduced automatically in two stages and finally switched off:
● Auxiliary heater
● Heated rear window and mirrors
● Heated seats
● FanIn the second stage a message which
confirms the activation of the vehicle
battery discharge protection will be
displayed in the Driver Information Centre (DIC).
Switching off electric lights
To prevent discharge of the vehicle
battery when the ignition is switched
off, some interior lights are switched
off automatically after some time.
Climate control153Climate controlClimate control systems.............153
Heating and ventilation system 153
Air conditioning system ...........154
Electronic climate control system .................................... 156
Auxiliary heater ........................160
Air vents ..................................... 161
Adjustable air vents .................161
Fixed air vents ......................... 161
Maintenance .............................. 161
Air intake ................................. 161
Pollen filter ............................... 161
Air conditioning regular
operation ................................ 162
Service .................................... 162Climate control systems
Heating and ventilation system
Controls for: ● temperature
● air distribution
● fan speed
● demisting and defrosting
Heated rear window Ü 3 35.
Temperature
red:warmblue:coldHeating will not be fully effective until
the engine has reached normal
operating temperature.
Air distributions:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well
All combinations are possible.
Fan speed
Adjust the air flow by switching the fan to the desired speed.
160Climate controlsystem is switched off, no enginerestart will be requested by the
climate control system during an
Autostop. Exception: defrost system
is activated and outside temperature
above 0 °C.
The display will indicate ACON when
cooling is activated or ACOFF when
the cooling is deactivated.
Activation or deactivation of cooling
operation after engine start can be
changed in the Settings menu in the
Info-Display. Vehicle personalisation
3 130.
Air recirculation mode 4Press 4 to activate the air
recirculation mode. Activation is
indicated by illumination of the LED in
the button.
Press 4 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 s.
Basic settings
Some settings can be changed in the Settings menu in the Info-Display.
Vehicle personalisation 3 130.
Auxiliary heater
Air heater Quickheat is an electric auxiliary air
heater which automatically warms up
the passenger compartment more
quickly.
Driving and operating165Ignition switch positions0:ignition off1:steering wheel lock released,
ignition off2:ignition on, for diesel engine:
preheating3:starting
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
● sunroof
● power outlets
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.
Starting the engine
Manual transmission: operate clutch.
Automatic transmission: operate
brake and move the selector lever to
P or N.
Do not operate the accelerator pedal.
Diesel engine: turn the key to position 2 for preheating until control
indicator ! extinguishes.
Turn the key briefly to position 3 and
release: an automatic procedure
operates the starter with a short delay
as long as 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
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 needs a
warming phase of approx. 5 minutes.
The selector lever must be in position
P .
Driving and operating167
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
During an Autostop, the heating and
brake performance will be
maintained.
Caution
The power steering assist may be
reduced during an Autostop.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled:
● The stop-start system is not manually deactivated.
● The bonnet is fully closed.
● The driver's door is closed or the driver's seat belt is fastened.
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed-up.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
" Climate control " chapter for more
details 3 156.
Immediately after motorway driving,
an Autostop may be inhibited.
New vehicle running-in 3 164.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several battery discharge protection
features are implemented as part of
the stop-start system.
Power saving measures
During an Autostop, several electric
features, e.g. auxiliary electric heater
or rear window heating are disabled
or switched into a power saving
mode. The fan speed of the climate
control system is reduced to save
power.
Restart of the engine by the driver
Depress the clutch pedal to restart the engine.
216Driving and operating9Danger
Before refuelling, switch off
ignition and any external heaters
with combustion chambers.
Switch off any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.
9 Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by a
workshop.
Caution
In case of misfuelling, do not
switch on ignition.
Fuel filler flap is located at right rear
side of the vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked. Release the
fuel filler flap by pushing the flap.
To open, turn the cap slowly to the left.
The fuel filler cap can be retained in
the bracket on the fuel filler flap.
To refuel, fully insert the pump nozzle
and switch it on.
After automatic cut-off, it can be
topped up with max. two doses of fuel.Caution
Wipe off any overflowing fuel
immediately.
To close, turn the fuel filler cap to the
right until it clicks.
Close the flap and engage.
Liquid gas refuelling Follow the operating and safety
instructions of the filling station when
refuelling.
The filling valve for the liquid gas is
behind the fuel filler cap.
Vehicle care255No.Circuit33Adaptive forward lighting/Auto‐
matic light control34Exhaust gas recirculation35Exterior mirror/Rain sensor36Climate control37Canister vent solenoid38Vacuum pump39Central control module40Windscreen washer/Rear
window washer system41Right high beam (Halogen)42Radiator fan43Windscreen wiper44Windscreen wiper45Radiator fan46–47Horn48Radiator fanNo.Circuit49Fuel pump50Headlamp levelling/Adaptive
forward lighting51Air shutter52Auxiliary heater/Diesel engine53Transmission control module/
Engine control module54Vacuum pump/Instrument
panel cluster/Heating ventila‐
tion/Air conditioning system
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
Instrument panel fuse box
In left-hand drive vehicles, the fuse
box is behind the storage
compartment in the instrument panel.
Open the compartment and push it to the left to unlock. Fold the
compartment down and remove it.
334IndexAAccessories and vehicle modifications .......................... 226
Active Emergency Braking .........196
Active head restraints ..................38
Adaptive cruise control .......117, 186
Adaptive forward lighting ..117,
144, 237
Adjustable air vents ...................161
Airbag and belt tensioners .........112
Airbag deactivation ..............51, 112
Airbag system .............................. 49
Air conditioning regular operation ................................ 162
Air conditioning system .............. 154
Air intake .................................... 161
Air vents...................................... 161
Antilock brake system ................ 175
Antilock brake system (ABS) .....114
Anti-theft alarm system ................28
Anti-theft locking system .............. 27
Appearance care ........................282
Armrest .................................. 45, 46
Armrest storage ........................... 61
Ashtrays ..................................... 105
Automatic anti-dazzle ..................32
Automatic light control ...............141
Automatic locking ........................24
Automatic transmission .............171
Auxiliary heater ........................... 160B
Battery discharge protection ......152
Battery voltage ........................... 127
Belts.............................................. 46
Bicycle rack .................................. 63
Bonnet ....................................... 227
Brake and clutch fluid .................286
Brake and clutch system ...........113
Brake assist ............................... 178
Brake fluid .................................. 231
Brakes ............................... 175, 231
Breakdown.................................. 280
Bulb replacement ....................... 234
C Capacities .................................. 305
Cargo management system ........89
Car Pass ...................................... 21
Catalytic converter .....................170
Central locking system ................23
Centre console lighting ..............151
Centre console storage ...............62
Changing tyre and wheel size ...266
Charging system ........................ 113
Child locks ................................... 25
Child restraint installation locations ................................... 55
Child restraints.............................. 53
Child restraint systems ................53
Cigarette lighter .........................105