3-Zone Automatic Climate Control - Mercedes-Benz R-Class W251 2009 Operator's Manual

3-zone automatic climate control

170
The manually selected air recirculation
i
mode is deactivated automatically:
after 5 minutes if the outside
R
temperature is below approximately
41‡ (5†)
after 5 minutes if the air conditioning and
R
air-drying are turned off
after 30 minutes if the outside
R
temperature is above approximately
41‡ (5†)
Residual heat and ventilation
With the engine switched off, it is possible to
continue to heat or ventilate the interior for
up to 30 minutes. This feature makes use of
the residual heat produced by the engine.
i How long the system will provide heating
depends on the coolant temperature and
the battery voltage.
3-zone automatic climate control
Control panels
USA only
Regardless of the temperature and air
volume set on the climate control panel, an
interior temperature is aimed at by 72‡
(22†) and the blower runs on low speed to
protect the vehicle battery.
X
Activating: Switch off the ignition.
X
Press button Á.
The indicator lamp in the button comes on.
X
Deactivating: Press button Á again.
The indicator lamp in the button goes out.
The residual heat is deactivated automatically
when the ignition is switched on
R
after approximately 30 minutes
R
if the battery voltage drops
R
if the coolant temperature is too low
R