2008 SAAB 9-3 ESP

220 Car careWipers and washersWiper bladesCheck and clean all wiper blades regularly.
If poor wiper performance is experienced,
clean the windshield with washer fluid. This
is particularly important if the car has been
through an automatic car wash, as these
sometimes leave a wax coating on the wind-
shield.
If wiper performance is still unsatisfactory,
fit new blades.
Windshield1 Press in the catch (1).
2 Pull the complete wiper blade down-
wards so that it comes away from the
wiper arm. Slide the entire blade out
from the arm.
Fitting the wiper blade
1 Align the wiper arm’s guide lug in the
blade’s corresponding slot.
2 Move the blade in towards the wiper arm
until the two catches grip the blade.
Check that the blade is fitted firmly.
Change of wiper blades, windshield
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239 Car care
Fuse panel in end of fasciaNo. Amp. Function
1 15 Steering wheel lock
2 5 Steering column unit; ignition switch
310Hands-free3
410 Main instrument unit; automatic climate control
(ACC)3
57.5 Control module in front doors; Park Brake Shift Lock
(automatic transmission)
6 7.5 Brake light switch
7 20 Dash fuse panel; fuel filler door
8 30 Control module in passenger front door
9 10 Dash fuse panel
1030 Trailer socket3; electrical socket in storage com-
partment between seats3
11 10 Data link connection (diagnostics)
12 15 Interior lighting incl. glove box
13 10 Accessories
14 20 Amplifier 2, Sound System 3
15 30 Control module in driver’s door
16 5 Passenger Sensing System
17 - -
18 - -
19 - -
20 7.5 Headlight levelling switch3
217.5 Hands-free3; brake light switch; manual climate
control3; clutch pedal switch
22 30 Cigarette lighter3
23 40 Cabin fan
24 7.5 Airbag control module
25 - -
265
Yaw sensor (cars with ESP
® )
27 - -
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246 Car carecertain that all wheel nuts are properly tight-
ened. See page 265.
Flat spottingAll 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 form 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 cause 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 cruising speed. If
the outdoor temperature is low it takes a
longer distance.
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.
WARNING
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel
could come off and cause an accident.
When you change a wheel, remove any
rust or dirt from places where the wheel
attaches to the vehicle. In an emergency,
you can use a cloth or a paper towel to do
this; but be sure to use a scraper or wire
brush later, if you need to, to get all the
rust or dirt off. See “Changing a tire” on
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248 Car care
Uniform Tire Quality GradingQuality grades can be found where applica-
ble on the tire sidewall between tread shoul-
der and maximum section width. For exam-
ple:
Treadwear 200 Traction AA
Temperature A
The following information relates to the
system developed by the United States
National Highway Traffic Safety Administra-
tion, which grades tires by treadwear, trac-
tion and temperature performance. (This
applies only to vehicles sold in the United
States.) The grades are molded on the side-
walls of most passenger car tires. The Uni-
form Tire Quality Grading system does not
apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12
inches (25 to 30 cm), or to some limited-pro-
duction tires.
While the tires available on General Motors
passenger cars and light trucks may vary
with respect to these grades, they must also
conform to federal safety requirements and
additional General Motors Tire Perfor-
mance Criteria (TPC) standards.
NOTEWide 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 ESP
®.
The speed and load limits of the tires
must not be exceeded; see page 253.
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 con-
trol while driving. If you mix tires of differ-
ent sizes or types (radial and bias-belted
tires), the vehicle may not handle prop-
erly, 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 developed for
use on your vehicle. See “Compact
spare” on page 260.
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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249 Car care
Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled conditions on
a specified government test course. For
example, a tire graded 150 would wear one
and a half (1.5) times as well on the govern-
ment course as a tire graded 100. The rela-
tive performance of tires depends upon the
actual conditions of their use, however, and
may depart significantly from the norm due
to variations in driving habits, service prac-
tices and differences in road characteristics
and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades repre-
sent the tire’s ability to stop on wet pave-
ment as measured under controlled condi-
tions on specified government test surfaces
of asphalt and concrete. A tire marked C
may have poor traction performance. Warn-
ing: The traction grade assigned to this tire
is based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.Temperature – A, B, C
The temperature grades are A (the highest),
B, and C, representing the tire’s resistance
to the generation of heat and its ability to dis-
sipate heat when tested under controlled
conditions on a specified indoor laboratory
test wheel. Sustained high temperature can
cause the material of the tire to degenerate
and reduce tire life, and excessive temper-
ature can lead to sudden tire failure. The
grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A
represent higher levels of performance on
the laboratory test wheel than the minimum
required by law.
Warning: The temperature grade for this tire
is established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive loading,
either separately or in combination, can
cause heat buildup and possible tire failure.
Wheel Alignment and Tire
BalanceThe 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.
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251 Car care
Tire Chains
Notice: If your vehicle does not have
235/45R17 size tires, use tire chains only
where legal and only when you must.
Contact your Saab dealer regarding suit-
able snow chains. 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 Goes FlatIt’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 235/45 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 con-
tacting your vehicle, and don’t spin your
wheels.
If you do find traction devices that will fit,
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255 Car care
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 identify the
tire manufacturer, production plant, brand
and date of production.
GVWR: Gross Vehicle Weight Rating see
page 287.
GAWR FRT: Gross Axle Weight Rating for
the front axle, see page 287.
GAWR RR: Gross Axle Weight Rating for
the rear axle, see page 287.
Intended Outboard Sidewall: The side of
an asymmetrical tire that must always face
outward when mounted on a vehicle.
Kilopascal (kPa): The metric unit for air
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.Maximum Load rating: The load rating for
a tire at the maximum permissible inflation
pressure for that tire.
Maximum Loaded Vehicle Weight: The
sum of curb weight; accessory weight; vehi-
cle capacity weight; and production options
weight.
Maximum Permissible Inflation Pres-
sure: The maximum cold inflation pressure
to which a tire may be inflated.
Normal occupant weight: The number of
occupants a vehicle is designed to seat mul-
tipled by 150 pounds (68 kg). See “Loading
Your Vehicle” on page 254.
Occupant Distribution: Designated seat-
ing positions.
Outward Facing Sidewall: The side of a
asymmetrical tire that has a particular side
that faces outward when mounted on a vehi-
cle. The side of the tire that contains a white-
wall bears white lettering or bears manufac-
turer, brand and or model name molding on
the other sidewall of the tire.
Passenger (P-Metric) Tire: A tire used on
passenger cars and some light duty trucks
and multipurpose vehicles.Recommended Inflation Pressure: Vehi-
cle manufacturer´s recommended tire infla-
tion pressure shown on the tire placard, see
“Inflation - Tire Pressure” on page 244 and
“Loading Your Vehicle” on page 254.
Radial Ply Tire: A pneumatic tire in which
the ply cords that extend to the beads are
laid at substantially 90 degrees to the cen-
treline of the tread.
Rim: A metal support for a tire or a tire and
tube assembly upon which the tire beads
are seated.
Sidewall: The portion of a tire between the
tread and the bead.
Speed rating: An alphanumeric code
assigned to a tire indicating the maximum
speed at which a tire can operate.
Traction: The friction between the tire and
the road surface. The amount of grip pro-
vided.
Treadwear Indicators: Narrow bands,
sometimes called “wear bars”, that show
across the tread of a tire when only
2/32 inch of tread remains. See “When It Is
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257 Car care
Winter tiresWinter (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.
Winter tires normally use a different speed
rating compared to summer/all season tires.
Make sure not to exceed the stated speed
rating on the tires you use.
Make sure that wheels with sensors for tire
pressure monitoring are fitted during
replacement if the car has automatic tire
pressure monitoring.Tire date codeTires should be regarded as perishable
goods. As the tires age, the rubber becomes
progressively harder, and the roadholding
ability of the tires diminishes. This is partic-
ularly true on winter tires.
Tires have a code that specifies their date of
manufacture. The first two digits denote the
week number and the last two digits the year
followed by a filled triangle.
Automatic tire pressure
monitoring systemThe system consists of a sensor in each
wheel and a receiver. The sensors are
located inside the tire in direct connection
with the air pressure valves.
Make sure that wheels with sensors for tire
pressure monitoring are fitted during
replacement if the car has automatic tire
pressure monitoring.Tire pressure information is transmitted
wirelessly to the receiver.
The system checks the tire pressures when
speed exceeds 19 mph (30 km/h).
The system is self-programming which
means that the wheels can be shifted
around without any need for adjustment.
The spare wheel has no sensor. The system
will trigger a warning/alarm because of that.
The sensor batteries last for 10 years or
around 160 000 km. The battery cannot be
replaced. The whole sensor must be
replaced.
WARNING
The system is an aid to the driver. The
driver always has the responsibility that
the tires have the correct air pressure.
For optimum safety, economy and com-
fort tire pressures should be checked reg-
ularly even if the automatic tire pressure
monitoring has not alarmed.
NOTETire replacement must take place with
great care to avoid damaging the sensors
that are built together with the valves.
Remove the rear side first.
Start to remove the tire opposite the
valve.
During removal the tire machine must
not come closer than ±10° from the
valve.
During fitting, start 20° after the valve
and finish 20° before the valve.
Do not inflate the tire with pressure
higher than 102 psi (700 kPa).
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