Saab 2000 9-5 - Manual (Page 206)

206 Car care and technical information
Flat spotting
All tires get hot, especially on long journeys
or when the car is driven hard. After the car
has been parked with hot tires and the tires
have cooled down, a flat spot can appear in
the tire, where it is in contact with the
ground. The same can occur if the car has
not been moved for a long time.
Flat spots can give rise to vibration that can
be felt through the steering wheel, similar to
that experienced when the wheels need bal-
ancing. Flat spots of this type disappear
once the tires get hot again, usually after
10–15 miles (20–25 km) of driving at cruis-
ing speed.
Air conditioning
(A/C system) Fault diagnosis
If a fault occurs in the A/C system, there are
a number of checks you can perform your-
self. If the fault persists, however, have the
system checked by an authorized Saab
dealer.
Important!
When the A/C system is running, the intake
air is dehumidified, and the resultant con-
densation is drained off through two outlets
underneath the floor of the car in the vicinity
of the front doors. It is therefore perfectly
normal for water to be seen dripping from
these outlets when the car is parked. The
warmer the ambient air and the higher the
humidity, the greater will be the amount of
condensation formed.
Inadequate cooling:
a Make sure that the temperature and
air-distribution controls are in the
appropriate settings.
b Check that the condenser (forward of
the radiator) has not become clogged
with dirt and insects.
c Make sure that the drive belt for the com-
pressor is not slipping.
d Check the fuses for the ventilation fans
and compressor.
NOTE
• The A/C system is designed for use
with R134a refrigerant.
• Refrigerant handling requires special
equipment and special procedures for
charging and draining the system.
• All repairs and adjustments on the A/C
system must be carried out by a Saab
dealer authorized for this kind of work.
• Never mix R134a and R12 refriger-
ants.
WARNING
• The A/C system is pressurized. Do not
break any connections or undo A/C
system components.
• Escaping gas can cause blindness or
other injury.