Owners Manual

Switching air-recirculation mode on/
off
General notes
You can deactivate the intake of fresh air if
unpleasant odors enter the vehicle from
outside. The air inside the vehicle will only be
circulated.
G
WARNING
At low outside temperatures, only switch over
to air-recirculation mode for brief periods.
Otherwise, the windows could fog up, thus
impairing visibility and endangering yourself
and others. This may prevent you from
observing the traffic conditions and thereby
cause an accident.
Heating/air-conditioning system
X
Press the e button.
If the indicator lamp in the button lights up,
air-recirculation mode is activated.
Air-recirculation mode switches off
automatically after about 10 to 30 minutes,
depending on the outside temperature.
Rear-compartment heating/rear-
compartment air conditioning
On vehicles with a rear-compartment heating
and air-conditioning system, you can
activate/deactivate air-recirculation mode
for the rear-compartment climate control.
X
To activate: set the temperature control of
rear-compartment heating
=(Y page 101) or rear-compartment air
conditioning system ;(Y page 101) to the
center position.
Only one of the two climate control
systems in the rear compartment is
activated and is in air-recirculation mode.
X
To deactivate: turn the temperature
control of rear-compartment heating
=(Y page 101) or rear-compartment air-
conditioning system ; (Y page 101)
clockwise or counterclockwise. Only
change the temperature in small
increments.
Auxiliary heating
Important safety notes
G
WARNING
Exhaust fumes are produced while the
auxiliary heating system is in operation. If you
breathe in these exhaust fumes, you could be
poisoned. Therefore, always switch off the
auxiliary heating in enclosed spaces without
an extraction system, e.g. a garage.
G
WARNING
Parts of the vehicle can become very hot
during operation of the auxiliary heating.
Make sure that the exhaust system does not
under any circumstances come into contact
with highly flammable material such as dry
grass or fuels. Otherwise, the highly
flammable material could ignite and set the
vehicle alight.
Auxiliary heating operation is prohibited at
gas stations or when your vehicle is being
refueled. Therefore, the auxiliary heating
must be switched off at gas stations.
The auxiliary heating system operates
independently of the engine and
complements the vehicle heating or air
conditioning.
You can use the auxiliary heating at an
outside temperature of up to 39 ‡ (4 †) in
order to:
R
pre-heat the vehicle interior
R
additionally warm the coolant, thereby
conserving the engine and saving fuel
R
support the vehicle's heating system while
the engine is running and outside
temperatures are low (heater booster
function)
i
At an outside temperature above 39 ‡
(4 †), the auxiliary heating system and the
106
Climate control
Controls