Climate control101Climate controlClimate control systems.............101
Heating and ventilation system 101
Air conditioning system ...........102
Electronic climate control system .................................... 103
Air vents ..................................... 105
Adjustable air vents .................105
Fixed air vents ......................... 105
Maintenance .............................. 106
Air intake ................................. 106
Pollen filter ............................... 106
Air conditioning regular operation ................................ 106
Service .................................... 106Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
Heated rear window Ü 3 31.
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 wellV:to windscreen and front door
windows
Intermediate settings are possible.
Demisting and defrosting the
windows
● Set temperature control to warmest level.
● Set fan speed to highest level.
● Set air distribution control to V.
● Switch on heated rear window Ü.
102Climate control● Open side air vents as requiredand direct them towards door
windows.
● For simultaneous warming of the
foot well, set air distribution
control to J.
Air conditioning system
Additional to the heating and
ventilation system, the air
conditioning system has controls for:
n:cooling4:air recirculation
Heated front seats ß 3 37.
Cooling n
Press n to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Press n again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) the air 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 the cooling system off to save
fuel.
Air recirculation system Press 4 to activate air recirculation
mode. Activation is indicated by the
LED in the button.
Press 4 again to deactivate air
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. 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 V.
Maximum cooling Briefly open the windows so that hot
air can disperse quickly.
● Cooling n on.
● Air recirculation system 4 on.
● Set air distribution control to M.
● Set temperature control to coldest level.
Climate control103● Set fan speed to highest level.● Open all air vents.
Demisting and defrosting the
windows
● Set temperature control to warmest level.
● Set fan speed to highest level.
● Set air distribution control to V.
● Switch cooling n on.
● 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.Electronic climate control
system
Controls for: ● temperature
● air distribution and menu selection
● fan speed
AUTO:automatic mode4:air recirculationÊ:demisting and defrostingOFF:switch on/off
Heated rear window Ü 3 31.
The preselected temperature is
automatically regulated. In the
automatic mode the fan speed and air distribution automatically regulate the
air flow.
The system can be manually adapted by use of air distribution and air flowcontrols.
The electronic climate control system
is only fully operational when the
engine is running.
For correct operation do not cover the
sensor on the instrument panel.
Automatic mode
Basic setting for maximum comfort: ● Press AUTO.
● Open all air vents.
● n on.
● Set desired temperature.
Temperature preselection Temperatures can be set to the
desired value.
For reasons of comfort, change
temperature only in small increments.
Turn AUTO knob to adjust.
104Climate controlclockwise:warmanticlockwise:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
When the minimum temperature is
set below 16 ℃, the electronic climate
control system runs at maximum
cooling. LO appears in the display.
If the maximum temperature is set
above 32 ℃, the electronic climate
control system runs at maximum
heating. HI appears in the display.
Fan speed
The selected fan speed is indicated
with bars in the display.
Press ] or < to increase or decrease
the fan speed.
maximum fan
speed:all bars displayedminimum fan
speed:one bar displayed
Press n to deactivate fan.
To return to automatic fan speed: Press AUTO.
Demisting and defrosting the
windows
Press Ê.
Temperature and air distribution are
set automatically and the fan runs at a high speed.
When the vehicle reaches normal
operating temperature the function
remains active for approx. 3 minutes.
To return to automatic mode: press n or AUTO .
Air distribution Press R, S or 6.
LED in buttons illuminate.
Arrows shown in the display indicate
the distribution settings.
Cooling
Press n to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Press n 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
press n again to switch the cooling
system off, thus saving fuel.
Manual air recirculation mode Operated by pressing 4.recirculation on:LED in button
illuminated; D
appears in the
displayrecirculation off:LED in button
extinguishes; E
appears in the
display9 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. The quality
106Climate controlMaintenanceAir 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.
Pollen filter The pollen filter cleans dust, soot,
pollen and spores from the air
entering the vehicle through the air
intake.
Air 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 outside
temperature is too low.
ServiceFor optimal cooling performance, it is
recommended that the climate control system be checked annually, 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
Driving and operating109Starting the engine
Manual transmission: operate clutch
and brake.
Manual transmission automated: operate brake, the transmission
automatically shifts to N (neutral)
Do not operate the accelerator pedal. Diesel engine: turn the key to position1 for preheating until control
indicator ! extinguishes.
Turn the key briefly to position 2 and release.
Before restarting or to switch off the engine, turn the key back to position
0.
Autostop
During an Autostop, the engine is
restarted automatically by depressing
the clutch pedal.
Vehicles with manual transmission
automated (MTA): Shift to a forward
gear, release brake pedal or move
lever to +, – or R to enable an
automatic restart.
Stop-start system 3 110.
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. Required is an engine oil with the correct viscosity,
the correct fuel, performed services
and a sufficiently charged battery.
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.Vehicle shutdown
Fuel cut-off system In the event of a collision of a certain
severity, the fuel system is cut-off and
the engine is switched off
automatically, for safety reasons.
Control indicator 9 illuminates if the
fuel cut-off switch is triggered and, depending on version, a
corresponding warning message may
also appear in the Driver Information
Centre (DIC) 3 85.
Generic warning control indicator 9
3 76.
Notice
In addition, the vehicle is
automatically unlocked and the
hazard warning flashers and interior lights are illuminated.
Turn the ignition key to position 0 to
prevent battery discharge and seek
the assistance of a workshop
immediately. Have the vehicle
checked for fuel leaks in the engine
compartment, beneath the vehicle
and near the fuel tank.
Driving and operating111AutostopIf the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
● depress the clutch pedal
● set the lever to neutral
● release the clutch pedal
The engine will be switched off while
the ignition stays on.
An Autostop is indicated when control
indicator ^ flashes in the DIC 3 85.
During an Autostop, the heating,
power steering and brake
performance will be maintained.
Caution
The 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.
Otherwise an Autostop will be
inhibited.
● the stop-start system is not manually deactivated
● the bonnet is fully closed
● the driver's door is closed and the
driver's seat belt is fastened
● the 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 not too low
● the climate control system allows
an Autostop
● the self-cleaning function of the diesel particle filter is not active
● the vehicle has moved since the last Autostop
● the brake vacuum is sufficient ● the windscreen wipers are not operating at fast speed
● reverse gear is not selected
● heated rear window is not operating
Ambient temperature near to the
freezing point can inhibit an
Autostop.
For manual transmission automated vehicles, an Autostop may be
inhibited until a speed of approx.
6 mph is reached.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 108.
Battery discharge protection
To ensure reliable engine restarts,
several battery discharge protection
features are implemented as part of
the stop-start system.
112Driving and operatingRestarting the engine
Manual transmission
The selector lever must be in neutral
to enable an automatic restart.
Depress the clutch pedal to restart the
engine.
Manual transmission automated
If the lever is in position N, select
another gear, otherwise release the
brake pedal or move the lever to +, –
or R to enable an automatic restart.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during the restart may be noticeable.
Restarting the engine with the key When one of the following conditions
occurs during an Autostop, the
engine will need to be restarted
manually using the key.
● the driver's seat belt is unfastened and the driver's door
is opened
● three minutes have elapsed since the engine was switched offIn this event, control indicator ^
flashes in the DIC in conjunction with
a warning chime. Depending on
version, a corresponding message
may also appear in the DIC 3 85.
Fault
If control indicator Æ illuminates in the
instrument cluster, there is a fault in
the stop-start system 3 84.
Depending on version, 9 will
illuminate as an alternative if control
indicator Æ is not present. A warning
message may also be displayed in
the DIC 3 85.
Generic warning 9 3 76.
Seek the assistance of a workshop.
Parking9 Warning
● Do not park the vehicle on an
easily ignitable surface. The
high temperature of the
exhaust system could ignite the
surface.
● Always apply parking brake without pressing release
button. Apply as firmly as
possible on a downhill slope or
uphill slope. Depress brake
pedal at the same time to
reduce operating force.
● Switch off the engine. Turn the ignition key to position 0 and
remove it. Turn the steering
wheel until the steering wheel
lock is felt to engage.
● If the vehicle is on a level surface or uphill slope, engage
first gear before switching off
the ignition. On an uphill slope,
turn the front wheels away from
the kerb.
If the vehicle is on a downhill
slope, engage reverse gear
before switching off the ignition. Turn the front wheels towardsthe kerb.
Lock the vehicle 3 21 and activate the
anti-theft locking system 3 26 .