brake SAAB 9-3 2004 Workshop Manual

236 Car careWheel Alignment and Tire Balance
The wheels on your vehicle were aligned
and balanced carefully at the factory to give
you the longest tire life and best overall per-
formance.
Scheduled wheel alignment and wheel bal-
ancing are not needed. However, if you
notice unusual tire wear or your vehicle pull-
ing one way or the other, the alignment may
need to be reset. If you notice your vehicle
vibrating when driving on a smooth road,
your wheels may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked or
badly rusted or corroded. If wheel nuts keep
coming loose, the wheel, wheel bolts and
wheel nuts should be replaced. If the wheel
leaks air, replace it (except some aluminum
wheels, which can sometimes be repaired).
See your dealer if any of these conditions
exist.
Your dealer will know the kind of wheel you
need.
Each new wheel should have the same
load-carrying capacity, diameter, width,
offset and be mounted the same way as the
one it replaces.
If you need to replace any of your wheels,
wheel bolts or wheel nuts, replace them only
with new Saab original equipment parts.
This way, you will be sure to have the right
wheel, wheel bolts and wheel nuts for your
vehicle.
Notice:
The wrong wheel can also cause
problems with bearing life, brake cool-
ing, speedometer or odometer calibra-
tion, headlamp aim, bumper height, vehi-
cle ground clearance and tire or tire
chain clearance to the body and chassis.
See “Changing a tire” on page 245.Used Replacement Wheels
WARNING
Using the wrong replacement wheels,
wheel bolts or wheel nuts on your vehicle
can be dangerous. It could affect the
braking and handling of your vehicle,
make your tires lose air and make you
lose control. You could have a collision in
which you or others could be injured.
Always use the correct wheel, wheel bolts
and wheel nuts for replacement.
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.
WARNING
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been
used or how far it’s been driven. It could
fail suddenly and cause a crash. If you
have to replace a wheel, use a new GM
original equipment wheel.
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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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240 Car careLoading Your VehicleThis is an example of what your vehicle´s
Tire-Loading Information/Certification label
might look like. It is located on the B-pillar
and shows how much weight your vehicle
may properly carry. The label tells you the
proper size, and recommended inflation
pressures the the tires on your vehicle. It
also gives you important information about
the number of people that can be in your
vehicle and the total weight that you can
carry. This weight is called the Vehicle
Capacity Weight, and includes the weight of
all occupants, cargo and all nonfactory-
installed options.
Tire Terminology and DefinitionsAir Pressure: The amount of air inside the
tire pressing outward on each square inch of
the tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight: This means the com-
bined weight of optional accessories, for
example, automatic transmission, power
steering, power brakes, power windows,
power seats, radio and air conditioning.
Aspect Ratio: The relationship of a tire´s
height to its width.
Belt: A rubber coated layer of cords that is
located between the plies and the tread.
Cords may be made from steel or other rein-
forcecing materials.
Bias Ply Tire: A pneumatic tire in which the
ply cords that extend to the beads are laid at
alternate angles substantially less than 90
degrees to the centerline of the tread.
Cold Inflation Pressure: The amount of air
pressure in a tire, measured in pounds per
square inch (psi) or kilopascal (kPa), before
a tire har built up heat from driving. See
“Inflation - Tire Pressure” on page 231.
Curb weight: This means the weight of a
motor vehicle with standard and optional
equipment including the maximum capacity
of fuel, oil and coolant, without passengers
and cargo.DOT Markings: A code molded into the
sidewall of a tire signifying that the tire is in
compliance with the U.S. Department of
Transportation motor vehicle safety stan-
dards. The DOT code includes the Tire
Identification Number (TIN), an alphanu-
meric designator which can also indentify
the tire manufacturer, production plant,
brand and date of production.
GVWR: Gross Vehicle Weight Rating see
“Loading Your Vehicle” on page 240.
GAWR FRT: Gross Axle Weight Rating for
the front axle, see “Loading Your Vehicle”
on page 269.
GAWR RR: Gross Axle Weight Rating for
the rear axle, see “Loading Your Vehicle” on
page 240.
Intended Outboard Sidewall: The side of
an asymmetrical tire that must always face
outward when mounted on a vehicle.
Kilopascal (kPa): The metric unit forair
pressure. There are 6.9 kPa to one psi.
Light Truck (LT-Metric) Tire: A tire used
on light duty trucks and some multipurpose
passenger vehicles.
Load Index: An assigned number ranging
from 1 to 279 that corresponds to the load
carrying capacity of a tire.
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245 Car care
Changing a tire
WARNING
 The car jack is designed solely for use
in changing a tire or fitting snow
chains. It must not be used to
support the car during repair work
or servicing.
Never crawl under a car that is
supported only by a jack.
 Special care must be taken if the car is
on a slope - use wedge-shaped wheel
chocks!
 Position chocks, one ahead and one
behind, the wheel that is diagonally
opposite to the one to be changed.
 Switch on the hazard warning lights if
the car is on a road.
 Apply the parking brake and leave the
car in gear (1st or reverse). Automatic
transmission: move the selector lever
to the P position.
 Ensure that everybody is out of the car
before jacking it up.
 Never start the engine while the car is
jacked up.
 If possible, make sure the jack is
standing on a firm, level surface.
 The jack should be stored correctly
under the carpeting in the trunk. If it
lies loose in the car, it could thrown
forward and cause personal injury in
the event of a crash or if the car rolls
over.
 Do not use the jack on a car other than
your Saab 9-3.
 Grit, salt and rust can clog the inner
threads of the wheel bolts if the car has
been driven for several years exclu-
sively with alloy wheels.
If steel wheels are being installed, the
bolt hole threads in the brake hubs
should be cleaned before the thinner
steel wheels are fitted. It may other-
wise not be possible to achieve the
correct clamping force, despite tight-
ening the wheel bolts to the correct
torque.
WARNING
Changing a tire can cause an injury. The
vehicle can slip off the jack and roll over
you or other people. You and they could
be badly injured. Find a level place to
change your tire. To help prevent the
vehicle from moving:
1 Set the parking brake firmly.
2 Put the shift lever in PARK (P) (auto-
matic transmission;
engage 1st gear (manual transmis-
sion).
3 Turn off the engine.
To be even more certain the vehicle won’t
move, you can put blocks at the front and
rear of the tire farthest away from the one
being changed. That would be the tire on
the other side of the vehicle, at the oppo-
site end.
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246 Car careWhen the car has to be lifted, the jack must
be positioned at one of the four jacking
points (front or rear) under the sill members.
If a floor jack is used, the lifting plate must
be positioned under the normal jacking
points, see illustration. If the car is equipped
with a towbar, the jack can also be placed
under this.
1 Wind the jack up to a suitable height
before placing it under the jacking point.
Each jacking point is indicated by an
arrow on the sill (see illustration).
Make sure that the jack fully engages
the jacking point in the underside of the
sill member and that the entire foot of the
jack is steady and flat on the ground.
The jack must not stand on snow, ice or
similar.
Wind up the jack until it just begins to lift
the car.2 It is not necessary to remove the wheel
cover.
If, none the less, you wish to remove the
wheel cover, take hold of the outer edge
and pull it straight out.
Loosen the wheel bolts half a turn.
3 Wind the jack to raise the wheel clear of
the ground. Remove the wheel bolts and
lift off the wheel.4 Clean any rust or dirt from the contact
surfaces between the wheel and brake
disc. Do not wipe away the grease in the
wheel hub.
5 Add a thin layer of grease on the bolts
before fitting, see page 248. Fit the
wheel and screw in the bolts in the
sequence shown on page 248 (opposite
pairs).
Tighten the bolts enough for the bolts
and wheel to be seated correctly.
6 Lower the car and tighten the wheel
bolts to torque in sequence as shown on
the following page.
Tightening torque:
Light-alloy wheels: 80 ft.lb. (110 Nm).
Steel wheels: 80 ft.lb. (110 Nm).NOTICEApply the jack only to the jacking points
indicated on the body.
Jacking points
Marking of jacking points
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247 Car care
7 Retighten the wheel bolts after twenty or
so miles.
Tightening torque:
Light-alloy wheels: 80 ft.lb. (110 Nm).
Steel wheels: 80 ft.lb. (110 Nm).
We advise against using wheels with large
ventilation slots in winter, as the brake com-
ponents are then more exposed to slush,
road salt and grit.
If you fit wheels of a different dimension, the
speedometer can be reprogrammed to
ensure it is as accurate as possible. Contact
a Saab dealer.Driving with tire chains, see
page 176 NOTICE
 Do not overtighten the bolts using a
impact wrench: not only can this
damage the wheels but it can also
make it impossible to undo the bolts
using the wheel wrench in the car’s
toolkit.
 When refitting a wheel cover, make
sure that the valve protrudes through
the marked recess in the wheel cover.
Do not wipe away the grease in the wheel
hub.
Clean any rust or dirt from the contact sur-
faces between the wheel and brake disc.
Jacking points for floor jack
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251 Car care
Convertible:
 Wash the soft top with a mild soap solu-
tion and lukewarm water. For spot clean-
ing the top, a finger nail brush can also be
used. Stroke the brush in the direction of
the fabric, not across the threads.
 If a pressure washer is used be heedful of
the following recommendations:
 on the lower part of the car (not higher
than the door handles): max pressure
of 100 bar and not closer than 8 in.
(20 cm).
 on the upper part of the car: max pres-
sure of 100 bar and not closer than
32 in. (80 cm).
 Do not use any drying chemicals or water-
proofing agents.
 Avoid automatic car washes
Waxing and polishingDo not wax a new car during the first three
or four months. In fact, there is no need to
polish the car before the paintwork has
started to dull through oxidation. Other than
in exceptional cases, do not use abrasive
polishes containing a cutting agent on a new
car. Always wash the car thoroughly before
waxing or polishing.
Touching up the paintDamaged paintwork should be treated as
soon as it is discovered: the longer it is left,
the greater the risk of corrosion. The anti-
corrosion warranty does not cover corrosion
resulting from untreated defects.
Paintwork damage sustained in a crash is
usually extensive and can only be properly
restored by professionals.
However, you can repair small scratches
and stone chip damage yourself. The nec-
essary tools and materials, such as primer,
touch-up paint and brushes, are available
from your Saab dealer.
In the case of minor flaws in the paintwork,
where the metal has not been exposed and
an undamaged layer of paint remains,
touch-up paint can usually be applied
directly, after any dirt has been scraped
away using a pointed knife.
NOTICE Try your brakes on leaving a car wash.
Wet brake discs reduce the perfor-
mance of the brakes.
 Fixed antennae, such as for a mobile
phone, must be removed if the car
goes through an automatic car wash.
 Cars with Saab Parking Assistance:
Do not spray the sensors or closer
than 8 in. (20 cm) to the sensors with
a pressure washer, as this can
damage them.
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263 Customer Assistance and Information
Engine oil and filter changesChanging the engine oil and filter is required
at every service point. Use only a Saab
approved long-life oil filter and engine oils
meeting the SAE viscosity ratings and API
service classifications stated in the “Techni-
cal data” section of this Owner’s Manual.
The use of extra additives in the oil is not
necessary and is not recommended, and
may be harmful to turbochargers.
More frequent oil changes are recom-
mended if your vehicle is operated under
any of the following conditions:
 Most trips are less than 5–10 miles (8–
16 km). This is particularly important
when outside temperatures are below
freezing.
 Most trips include extensive idling
(frequent stop-and-go traffic).
 Most trips are through dusty areas (such
as construction zones).
 If the vehicle is used for delivery service,
police, taxi or other commercial applica-
tions.
If your driving habits match this description,
have the engine oil and filter changed in-
between normal services. These conditions
cause the engine oil to break down faster.
The Warranties and Service Record Book-
let has provisions to record extra oil
changes.
Service record retentionIt is the owner’s responsibility to retain ser-
vice records. If possible, you should keep
copies of all shop work orders for all service
and repairs, whenever performed. As indi-
cated in the new car and emission control
system warranties, it is important to docu-
ment that all necessary maintenance has
been done.
HOW THE SERVICE RECORD IS ORGA-
NIZED
The service record is comprised of a series
of coupons on which to record services as
they are performed. There are additional
coupons for documenting extra engine oil
and filter changes, extra automatic trans-
mission fluid services necessary for severe
service conditions, and brake fluid changes.
HOW TO USE THE SERVICE RECORD
COUPONS
When the car is brought to a Saab dealer for
scheduled maintenance, present the War-
ranties & Service Record Booklet to the ser-
vice manager. When the technician has
completed the service, the technician will
sign the maintenance record. The person
responsible for quality assurance at the
dealership will also sign and stamp the
record with the dealer identification stamp.
Service costsDealer pricing practices and labor for ser-
vice work vary. Saab’s recommended ser-
vice times for each service point do not
include the labor required to replace wear
items, such as wiper blades, brake pads or
tires. Nor is labor to perform other service or
repairs found to be necessary as a result of
the inspections included in these times.
Additional labor and parts will be charged
for such work when necessary, except as
covered under an applicable Saab warranty
or any optional extended service contract.
Transmission fluid changes or suspension
alignment, when necessary, are also addi-
tional.
Dealer charges for general shop material,
regulated hazardous waste removal, recy-
cling expenses or other operation costs may
also be applied to service and repair
invoices and are apt to vary by dealer and
location.
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267 Technical data
General data __________ 268
Engine _______________ 270
Engine oil _____________ 270
Fuel__________________ 271
Engines ______________ 271
Electrical system_______ 272
Drive belt _____________ 272
Manual transmission ___ 272
Automatic transmission _ 273
Suspension ___________ 273
Steering ______________ 273
Brake system__________ 274
Wheels and tires _______ 275
Plates and labels _______ 278
Technical data
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269 Technical data
Maximum axle load:
Sport Sedan, front _________________ 2480 lbs. (1125 kg)
Sport Sedan, rear __________________ 2230 lbs. (1010 kg)
Convertible, front __________________ 2540 lbs. (1150 kg)
Convertible, rear ___________________ 2310 lbs. (1050 kg)
Weight distribution:
Curb weight + driver (150 lbs. (68 kg)),
front/rear (Sport Sedan and Convertible) approx. 60/40 %
GVW, front/rear (Sport Sedan and Con-
vertible) __________________________ approx. 50/50 %
Maximum roof load, Sport Sedan _______ 220 lbs. (100 kg)
Maximum load in trunk:
Sport Sedan ______________________ 175 lbs. (80 kg)
Convertible _______________________ 220 lbs. (100 kg)
The combined weight of occupants and
cargo should never exceed:
Sport Sedan ______________________ 925 lbs. (420 kg)
Convertible _______________________ 820 lbs. (372 kg)
Maximum combined weight of driver and
passengers ______________________
Sport Sedan (5x150 lbs.) ____________ 750 lbs. (340 kg)
Convertible (4x150 lbs.) _____________ 600 lbs. (272 kg)
WARNING
 The GVW and maximum axle loads must not be exceeded.
Note that if some accessories (e.g. towbar, CD changer) are
fitted, the available load capacity is reduced by the weight of
these.
 When carrying a load in the trunk, make sure that it is lashed
down securely, particularly when part or all of the rear seat is
folded down.
Trailer:
Trailer with brakes ___________________ Max. 3500 lbs.
(1588 kg)
Trailer without brakes ________________ Max. 1000 lbs.
(450 kg)
Recommended towball load ___________ 110–165 lbs.
(50–75 kg)
See also page 180.
Maximum theoretical towing speed, trailer
with brakes _______________________ 60 mph (100 km/h)
When towing a trailer, increase the pressure
of the rear tires by 20 kPa (3 psi).
The above speed and weight restrictions are those specified by
Saab Automobile AB.
Note that national restrictions may apply to trailer speeds and
weights (see page 178).
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