Wheels, Alternative wheels and tires – Saab 2000 9-5 User Manual
Page 198
198
Car care and technical information
Wheels
Alternative wheels and tires
If you wish to fit other tires or wheels than
those supplied with the car, consult your
Saab dealer first as to the possibilities avail-
able.
Wheels/tires combinations that are not
approved by Saab can negatively affect the
car´s directional stability, steering and brak-
ing in both wet and dry conditions.
Do not assume that a wheel/tire combina-
tion will function properly just because it will
bolt on.
The wheels and tires have been carefully
matched to the characteristics of the car and
play a key role in its outstanding roadhold-
ing and handling.
Tire pressure
Tires need to be inflated to suit the load car-
ried and the maximum speed the car will be
driven (see the recommended tire pres-
sures on the back cover). Note that all
values apply to cold tires. For tires with an
aspect ratio less than /60, increase the tire
pressure by 3 psi (20 kPa) for rough roads
with potholes to minimize the risk of rim
damage.
Never reduce the pressure of a hot tire. If the
tires are hot when you check them, only
increase the pressure, if necessary.
Soft tires will cause faster wear than
over-pressurized tires. They also increase
fuel consumption.
If a valve is leaking, simply unscrew it and fit
a new one.
Important! Remember to adjust the tire
pressures if you change the load in the car
or intend to cruise at a substantially higher
or lower speed than normal.
NOTE
For wide wheels and/or low-profile tires,
bear in mind the following:
• Tires and wheels can be damaged in
potholes etc.
• Springs and dampers can be over-
loaded.
• The wheels can come into contact with
chassis and body components.
• The speed and load limits for the tires
must not be exceeded; see page 199.
• Wheels larger than 17” must not be fit-
ted. The maximum permissible offset
is 49 mm.
NOTE
Check the tire pressures at least once
per month.
Underinflation is the main cause of:
• Tires wearing out prematurely.
• Damage to the sidewalls.
• Damage to the wheels.