Volvo 2006 XC70 Owner's Manual page 57

Climate control system - general information
Condensation on the inside of the windows
Keeping the insides of the windows clean will help reduce the amount
of condensation that forms on the windows. Use a commercial window
cleaning agent to clean the windows.
Ice and snow
Cabin air filter
Sensors
Parking the car in warm weather
If your car has been parked in the sun in warm weather, opening the
windows and moonroof (option) for several minutes before driving will
help release the warm air from the passenger compartment. When the
engine is running, close the windows and moonroof and use the
recirculation function for several minutes to enable the air conditioning
to cool the compartment as quickly as possible.
Windows and optional moonroof
The ECC system will function best if the windows and optional moon-
roof are closed. If you drive with the moonroof open, we recommend
that you manually adjust the temperature and blower control (the LED in
the AUTO switch should be off).
Acceleration
Climate control maintenance
Special tools and equipment are required to maintain and carry out
repairs on the climate system. Work of this type should only be done by
a trained and qualified Volvo service technician.
Refrigerant
Climate system blower
Passenger compartment blower
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