Saab 9-3 Convertible M2003, Owner'S Manual

Page: 201 / 256

201 Car care
Rotating the tires
Because of front wheel drive, the front tires
tend to wear faster than the rear ones. New
tires should always be fitted in pairs, so that
tires on the same axle have the same
amount of tread.
The tyre tread must be at least 3 mm deep.
The wheels should be marked, L (left) and
R (right), when changing between summer
and winter (snow) tires. This ensures that
the direction of rotation of the wheels is the
same when they are refitted. Fit the tires in
best condition to the rear wheels.
Store wheels lying flat or hanging –
never
standing upright.
Tire markings
An example of the meaning of the different
markings in a tire size is given below for a
tire size of 205/55 R16 91V:
Winter tires
Winter (snow) tires are recommended for
winter climates where the majority of your
driving will be done on snow and ice. Winter
tires should be fitted to all four wheels to
maintain a proper balance. Your Saab
dealer can advise you of to the correct size
tire for your car (if different from the original
size) and also supply Saab approved winter
tires pre-mounted on steel or alloy rims.
Tire quality grading (cars sold in
U.S.)
New tires must be graded and labeled in
accordance with new Federal regulations.
Standard tests are conducted to measure
performance in the areas of traction and
temperature resistance. Refer to the tire
sidewall for the specific quality grades of the
tires provided on your new Saab. Compact
spare tires are exempt.
DOT QUALITY GRADES
• Treadwear.
• Traction AA, A, B, C.
• Temperature A, B, C.
All passenger car tires must conform to Fed-
eral safety requirements in addition to these
grades.
WARNING
When fitting just one new pair of tires,
these should be fitted to the rear wheels,
as these are more critical to the direc-
tional stability of the car (e.g. on braking
or in a skid). The existing rear wheels
should therefore be moved to the front.
Always move left rear to left front and right
rear to right front, so that the direction of
rotation remains the same.
205 Tire section width, mm
55 Aspect ratio, i.e. the section height
is 55 % of the section width
R Radial ply
16 Wheel rim diameter 16 in. at bead
seats
91 Tire load code
V Speed marking
Load limiters
88 max 1201 lbs (545 kg)
91 max 1366 lbs (615 kg)
Speed ratings
Q up to 100 mph (160 km/h)
S up to 112 mph (180 km/h)
T up to 118 mph (190 km/h)
H up to 130 mph (210 km/h)
V up to 150 mph (240 km/h)
W up to 167 mph (270 km/h)
Y up to 186 mph (300 km/h)
93uC03.book Page 201 Thursday, May 30, 2002 11:36 AM