2004 SAAB 9-3 wheel size

233 Car care
When It Is Time for New TiresOne way to tell when it’s time for new tires is
to check the treadwear indicators, which will
appear when your tires have only 1/16 inch
(1.6 mm) or less of tread remaining.
You need a new tire if any of the following
statements are true:
 You can see the indicators at three or
more places around the tire.
 You can see cord or fabric showing
through the tire’s rubber.
 The tread or sidewall is cracked, cut or
snagged deep enough to show cord or
fabric.
 The tire has a bump, bulge or split.
 The tire has a puncture, cut or other
damage that can’t be repaired well
because of the size or location of the
damage.
Treadwear indicatorsThe tires incorporate wear indicators in the
form of smooth, treadless strips across the
width, which become visible when only 2/
32" (1.6 mm) of tread remains. As soon as
the indicators become visible, new tires
should be fitted without delay.
Make sure you are familiar with the legal
limit for minimum tread depth in your
country and also any regulations gov-
erning the use of winter (snow) tires.
Buying New TiresTo find out what kind and size of tires you
need, look at the Tire-Loading Information
label.
The tires installed on your vehicle when it
was new had a Tire Performance Criteria
Specification (TPC Spec) number on each
tire’s sidewall. When you get new tires, get
ones with that same TPC Spec number.
That way your vehicle will continue to have
tires that are designed to give proper endur-
ance, handling, speed rating, traction, ride
and other things during normal service on
your vehicle. If your tires have an all-season
tread design, the TPC number will be fol-
lowed by an “MS” (for mud and snow).
If you ever replace your tires with those not
having a TPC Spec number, make sure they
are the same size, load range, speed rating
and construction type (bias, bias-belted or
radial) as your original 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
available.
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.
Treadwear indicator
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234 Car careThe 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.
Do not take it for granted that a wheel/tire
combination will work in the best possible
way, just because it can be fitted to the car.
To ensure that the speedometer is as accu-
rate as possible it should be reprogrammed
if wheels of a different dimension are fitted.
Contact a Saab dealer.
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.
Store wheels lying flat or hanging – never
standing upright.
NOTICEAlways consult your Saab dealer before
changing the car’s wheels or tires on your
Saab.
Wide wheels and tires with side walls that
are too low can:
 be damaged in potholes, etc.
 cause springs, shock absorbers and
wheel bearings and body mountings
to be overloaded
 affect the function of the Electronic
Stability Program (ESP).
The speed and load limits of the tires
must not be exceeded; see page 239.
Wheels larger than 17" must not be fitted
on the Saab 9-3 for reasons above. The
permissible offset is 1.61 inch (41 mm).
WARNING
Mixing tires could cause you to lose
control while driving. If you mix tires of
different sizes or types (radial and bias-
belted tires), the vehicle may not handle
properly, and you could have a crash.
Using tires of different sizes may also
cause damage to your vehicle. Be sure to
use the same size and type tires on all
wheels. It’s all right to drive with your
compact spare temporarily, it was devel-
oped for use on your vehicle. See
“Compact spare tire” on page 243.
WARNING
If you use bias-ply tires on your vehicle,
the wheel rim flanges could develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly, causing
a crash. Use only radial-ply tires with the
wheels on your vehicle.
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237 Car care
Tire Chains
Notice:
If your vehicle does not have
P225/45R17 size tires, use tire chains
only where legal and only when you
must. Use only SAE Class ²S² type
chains that are the proper size for your
tires. Install them on the front tires and
tighten them as tightly as possible with
the ends securely fastened. Drive slowly
and follow the chain manufacturer’s
instructions. If you can hear the chains
contacting your vehicle, stop and
retighten them. If the contact continues,
slow down until it stops. Driving too fast
or spinning the wheels with chains on
will damage your vehicle.If a Tire Goeas Flat
It’s unusual for a tire to “blowout” while
you’re driving, especially if you maintain
your tires properly. If air goes out of a tire,
it’s much more likely to leak out slowly. But
if you should ever have a “blowout”, here are
a few tips about what to expect and what to
do:
If a front tire fails, the flat tire will create a
drag that pulls the vehicle toward that side.
Take your foot off the accelerator pedal and
grip the steering wheel firmly. Steer to main-
tain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts
much like a skid and may require the same
correction you’d use in a skid. In any rear
blowout, remove your foot from the acceler-
ator pedal. Get the vehicle under control by
steering the way you want the vehicle to go.
It may be very bumpy and noisy, but you can
still steer. Gently brake to a stop – well off
the road if possible.
If a tire goes flat, the next part shows how to
use your jacking equipment to change a flat
tire safely.
WARNING
If your vehicle has P225/45 R17 size tires,
don’t use tire chains, there’s not enough
clearance.
Tire chains used on a vehicle without the
proper amount of clearance can cause
damage to the brakes, suspension or
other vehicle parts. The area damaged by
the tire chains could cause you to lose
control of your vehicle and you or others
may be injured in a crash.
Use another type of traction device only if
its manufacturer recommends it for use
on your vehicle and tire size combination
and road conditions. Follow that manu-
facturer’s instructions. To help avoid
damage to your vehicle, drive slowly,
readjust or remove the device if it’s
contacting your vehicle, and don’t spin
your wheels.
If you do find traction devices that will fit,
install them on the front tires.
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239 Car care
Aspect ratio: A two-digit number that indi-
cates the tire height-to-width measure-
ments. For example, if the tire size aspect
ratio is “55”, as shown in item “C” of the illus-
tration, it would mean that the tire´s sidewall
is 55% as high as it is wide.
Belt Rating: A letter code is used to indicate
the type of ply construction in the tire. The
letter “R” means radial ply construction; the
letter “D” means diagonal or bias ply con-
struction; and the letter “B” means belted-
bias ply construction.
Rim Diameter: Diameter of the wheel in
inches.
Load range: The load range represents the
load carry capacity a tire is certified to carry.
Speed Rating: The maximum speed that a
tire is certified to carry a load. Speed ratings
range from “A” to “Z”.
Tire markingsAn example of the meaning of the different
markings in a tire size is given below for a
tire size of 225/45 R17 94H:
225 Tire section width, mm
45 Aspect ratio, i.e. the section height
as a percentage of the section
width
R Radial ply
17 Wheel rim diameter 15 in at bead
seats
94 Tire load index
H Speed rating
Tire load indices
91 Tire approved for max. 1355 lbs.
(615 kg)
93 Max. 1433 lbs. (650 kg)
94 Max. 1477 lbs. (670 kg)
Speed ratings
S Tire approved for speeds up to
110 mph (180 km/h)
T Max. 118 mph (190 km/h)
H Max. 130 mph (210 km/h)
V Max. 149 mph (240 km/h)
W Max. 168 mph (270 km/h)
Y Max. 186 mph (300 km/h)
TIN-codea Manufacturer´s Identification Mark
b Tire Size
c Tire Type Code
d Date of Manufacture
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242 Car careSteps for Determining Correct Load
Limit
1 Locate the statement “The
combined weight of occupants and
cargo should never exceed
XXX pounds” on your vehicle´s
placard.
2 Determine the combined weight of
the driver and passengers that will
be riding in your vehicle.
3 Substract the combined weight of
the driver and passengers from
XXX kilograms or XXX pounds.
4 The resulting figure equals the avail-
able amount of cargo and luggage
load capacity. For example, if the
“XXX” amount equals 1400 lbs. and
there will be five 150 lb. passengers
in your vehicle, the amount of avail-
able cargo and luggage load capac-
ity is 650 lbs. (1400–750 (5x150) =
650 lbs.).5 Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not
safely exceed the available cargo
and luggage load capacity calcu-
lated in Step 4.
6 If your vehicle will be towing a trailer,
load from your trailer will be trans-
ferred to your vehicle. Consult this
manual to determine how this
reduces the available cargo and
luggage load capacity of your vehi-
cle.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.
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276 Technical dataRecommended tire/engine combinations*) Not recommended in combination with sport chassis.
RF/XL = Reinforced (or Extra Load) tire.
2.0t 2.0 Turbo
Summer tires
205/65 R15 94 H x –
215/55 R16 93 H x –
225/45 R17 94 W RF/XL x x
Winter (snow) tires
205/65 R15 94 Q x –
205/55 R16 91 Q *) x x
215/55 R16 93 Q x x
225/45 R17 94 Q RF/XL x x
Wheel sizes
6.5 x 15" x –
6.5 x 16" x x
7 x 17" x x
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277 Technical data
Recommended lowest tire pressure, cold tiresTire size Load/speed
mph (km/h)
*)
Front
kPa/psiRear
kPa/psi
Summer tires
205/65 R15 94 H 1–3 pers./0–100 (0–160)
4–5 pers./0–100 (0–160)
1–5 pers./100– (160–)220/32
220/32
260/38220/32
220/32
260/38
215/55 R16 93 H 1–3 pers./0–100 (0–160)
4–5 pers./0–100 (0–160)
1–5 pers./100– (160–)240/35
240/35
280/41220/32
220/32
260/38
225/45 R17 94 W
RF/XL1–3 pers./0–120 (0–190)
4–5 pers./0–120 (0–190)
1–5 pers./120– (190–)240/35
240/35
280/41240/35
240/35
280/41
Winter tires
205/65 R15 91 Q 1–3 pers./0–100 (0–160)
4–5 pers./0–100 (0–160)240/35
280/41240/35
280/41
205/55 R16 91 Q 1–3 pers./0–100 (0–160)
4–5 pers./0–100 (0–160)240/35
280/41240/35
280/41
215/55 R16 93 Q 1–3 pers./0–100 (0–160)
4–5 pers./0–100 (0–160)240/35
280/41240/35
280/41
225/45 R17 94 Q
RF/XL1–3 pers./0–100 (0–160)
4–5 pers./0–100 (0–160)250/36
290/42250/36
290/42
Spare wheel
125/85 R16 99 M Max 50 (80) 420/60 420/60
*) Do not exceed posted speed limits.
By cold tires is meant tires that are the same temperature as the sur-
rounding air temperature.
The values for tire pressure in table above are for tires at 68°F
(20°C).
The tire pressure will increase as the tires become warm (e.g. during
highway driving), and decrease as they cool.
When the temperature of the tires increases or decreases by 10
degrees the tire pressure will correspondingly increase or decrease
by 2 psi/10 kPa.
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287 Index
Tire date code
__________________ 243
Tire inspection and rotation
_______ 232
Tire markings
__________________ 239
Tire pressure monitoring, automatic
_ 229
Tire sidewall labeling
____________ 238
Tire sizes
_____________________ 275
Tire terminology and definitions
____ 240
Tire, changing
__________________ 245
Tire, spare
_____________________ 243
Tires
_________________________ 231
Tools and spare wheel
___________ 243
Touching up paintwork ___________ 251
Towbar
_______________________ 178
Towbar load
___________________ 180
Towing
_______________________ 184
Towing a trailer
_________________ 178
Towing the car _________________ 185
Traction Control System (TCS)
_____ 163
Transmission oil, checking
________ 198
Transmission oil, grade
___________ 272
Transmission, automatic __________ 153
Transmission, manual
____________ 152
Transporting the car
_____________ 186
Treadwear indicators ____________ 233
Trip computer
___________________ 84
Trip meter
______________________ 79
Troubleshooting, A/C and ACC
____ 255
Trunk lid, driving when open
_______ 183
Trunk lid, opening
________________ 43
Turbo gauge
____________________ 80
UUniform tire quality grading
________ 235
Upholstery care
_________________ 249
Upholstery, cleaning
_____________ 249
Useful tips on night driving
________ 184
Useful tips on starting
____________ 143
VVanity mirror
___________________ 124
Vehicle Data Collection
___________ 266
Vehicle identification number
______ 278
Vehicle recovery
________________ 186
WWarning labels
___________________ 7
Warning lights
___________________ 74
Warning triangle _________________ 94
Warnings and messages on SID,
Convertible
____________________ 63
Washer fluid ___________________ 206
Washer jets ____________________ 207
Washers
_______________________ 95
Washing ______________________ 250
Washing a Convertible
___________ 251
Waxing and polishing
____________ 251
Wear indicators, tires ____________ 233
Wheel replacement
______________ 236Wheels and tires, sizes
___________ 275
When it is time for new tires
_______ 233
Windshield washers
______________ 95
Windshield wipers
________________ 95
Wing mirrors
___________________ 128
Winter driving __________________ 175
Winter tires
____________________ 242
Wiper blades ___________________ 206
Wipers
_________________________ 95
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