Operation
Press to operate the air quality sensor (normal
setting).
or:
Select one of the following three functions by
pressing 1, 2 or 3 times.
1. The AUT LED lights. The air quality sensor
is now activated.
2. No LED lights. Recirculation is not activated
unless needed to cool the passenger
compartment in a warm climate.
3. The MAN LED lights. Recirculation is now
activated.
Keep in mind the following:
• Make it a rule to have the air quality sensor
activated at all times.
• Recirculation is limited in cold climates to
avoid fogging.
• If window fogging occurs, you should
deactivate the air quality sensor. Also use
the defroster functions for the windshield,
side windows and rear window.
• The filter should be changed at the intervals
recommended in the service schedule.
However, if the vehicle is used in a severely contaminated environment, it may be necessary to change the filter more frequently.
See also:
Volume control
Turn the knob (2) clockwise or counterclockwise
to raise or lower the volume. The volume
control is electronic and has no end position.
Volume can also be raised (+) or lowered (–)
using the ste ...
Coolant
Location of the coolant reservoir
Normally, the coolant does not need to be changed. If the system must be drained,
consult a trained and qualified Volvo service technician.
See page 341 for inf ...
Steering, brakes and transmission
The Volvo XC90 is as easy, responsive and rewarding to drive as a regular
Volvo saloon or estate model. Its torsionally rigid body, transverse engines and
All Wheel Drive combine to create almost ...