service SAAB 9-3 2002 Owner's Manual

150 Starting and driving
Important considerations with cata-
lytic convertersThe catalytic converter is an emission-con-
trol device incorporated in the car’s exhaust
system. It consists of a metal canister with a
honeycomb insert, the cells of which have
walls coated in a catalytic layer (mixture of
precious metals).
To ensure that the catalytic converter con-
tinues to function properly, and also to avoid
damage to the converter and its associated
components, the following points must be
observed:
 Have the car serviced regularly in accor-
dance with the service program. The fuel
and ignition systems are particularly
important in this context.
 Always be alert to any misfiring of the
engine (not running on all cylinders) and
any loss of power or performance. At the
first sign of a malfunction, reduce speed
and take the car to an authorized Saab
dealer as soon as possible. If the engine fails to start (in very cold
weather or if the battery is dead), the car
can be push started (manual gearbox
only) or started using jumper cables to a
donor battery. However, as soon as you
have started the engine, it is important
that it runs on all cylinders. If it is misfiring,
allow it to idle for up to five minutes to give
it time to settle and run smoothly. If, after
this time, the engine still fails to run prop-
erly, turn off the engine and get in touch
with an authorized Saab dealer for
advice.
NOTEIf the CHECK ENGINE warning light
starts to flash, ease off the accelerator
slightly. If the light does not cease to flash
within 5 seconds, stop the car in a suita-
ble place as soon as possible and turn off
the engine. The car must be towed to an
authorized Saab dealer.
If the CHECK ENGINE warning light
flashes, it indicates that the engine is
misfiring which can result in damage to
the catalytic converter.
NOTEUse only unleaded gasoline. Leaded gas-
oline is detrimental to the catalyst and
oxygen sensor and will seriously impair
the function of the catalytic converter.
IB1315
Engine-management system with catalytic
converter 1 Engine control module
2 Oxygen sensor (lambda probe)
3 Catalytic converter
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153 Starting and driving
Other, less common, fuel additives used by
some gasoline dealers are also acceptable,
provided that the resultant gasoline is not
more than 2.7% oxygen by weight. In many
cases, you may not be able to determine the
exact type or percentage by volume of fuel
additive in the gasoline you purchase for
your car.
Some Canadian and U.S. gasolines contain
an octane enhancing additive called meth-
lycyclopentadienyl manganese tricarbonyl
(MMT). If such fuel is used, your emission
control system performance may deterio-
rate and the malfunction indicator lamp on
your instrument panel may turn on. If this
occurs, return to your authorized Saab
dealer for service.
However, these blended gasolines are reg-
ulated and should never exceed these rec-
ommended blend percentages and service
station operators should know if their gaso-
lines contain detergents and oxygenates,
and have been reformulated to reduce vehi-
cle emissions. Nevertheless, if you begin to
notice a problem with the way your car starts
or runs shortly after it has been refueled, try
a different brand of gasoline.
NOTEHigher concentrations of methanol than
listed above, or the use of methanol-
blended gasoline without suitable
co-solvents and corrosion inhibitors,
can damage your car’s fuel system,
leading to the need for repairs which are
not covered by Saab’s product warranty.
NOTEThe engine control module (ECM) mon-
itoring the engine parameters also
stores fault codes.
Under certain circumstances, this may
cause constant illumination of the
Engine malfunction (CHECK ENGINE)
lamp , thus indicating a fault that
must be checked by your Saab dealer,
see page 63.
NOTE: always observe the following two
measures:
 Make sure that the fuel filler cap is
screwed on correctly before the
engine is started. Screw on the fuel
filler cap until you hear three distinct
clicks.
 Avoid driving with the fuel low level
indicator illuminated. The symbol
illuminates when less than approxi-
mately 2.5 gallons (10 litres) of fuel
remains in the tank.
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154 Starting and drivingFuel (Gasoline Engine)Use regular unleaded gasoline rated at 87
octane or higher. It is recommended that the
gasoline meet specifications which were
developed by the American Automobile
Manufacturers Association (AAMA) and
endorsed by the Canadian Motor Vehicle
Manufacturers Association for better vehi-
cle performance and engine protection.
Gasolines meeting the AAMA specification
could provide improved driveability and
emission control system performance com-
pared to other gasolines.Canada Only
Be sure the posted octane is at least 87. If
the octane is less than 87, you may get a
heavy knocking noise when you drive. If it’s
bad enough, it can damage your engine. If
you’re using fuel rated at 87 octane or
higher and you hear heavy knocking, your
engine needs service. But don’t worry if you
hear a little pinging noise when you’re accel-
erating or driving up a hill. That’s normal,
and you don’t have to buy a higher octane
fuel to get rid of pinging. It’s the heavy, con-
stant knock that means you have a problem.
If your vehicle is certified to meet California
Emission Standards (indicated on the
underhood emission control label), it is
designed to operate on fuels that meet Cal-
ifornia specifications. If such fuels are not
available in states adopting California emis-
sions standards, your vehicle will operate
satisfactorily on fuels meeting federal spec-
ifications, but emission control system per-
formance may be affected. The malfunction
indicator lamp on your instrument panel
may turn on and/or your vehicle may fail a
smog-check test. See "Malfunction Indica-
tor Lamp" in the Index. If this occurs, return
to your authorized Saab dealer for diagno-
sis to determine the cause of failure. In the
event it is determined that the cause of the
condition is the type of fuels used, repairs
may not be covered by your warranty. Some gasolines that are not reformulated
for low emissions may contain an
octane-enhancing additive called methylcy-
clopentadienyl manganese tricarbonyl
(MMT); ask your service station operator
whether or not the fuel contains MMT. Saab
does not recommend the use of such gaso-
lines. If fuels containing MMT are used,
spark plug life may be reduced and your
emission control system performance may
be affected. The Engine malfunction
(CHECK ENGINE) light on your instrument
panel may turn on. If this occurs, return to
your authorized Saab dealer for service.
In Canada, look for the
"Auto Makers’ Choice" label
on the fuel pump.
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159 Starting and driving
Automatic transmission
fault indicator
If the symbol appears on the main instru-
ment panel, the system has detected a fault
in the automatic transmission or its control
module (see page 64).
This also means that the Limp-home mode
has been selected, to guard against further
damage being done to the transmission. In
this mode, the automatic transmission
starts in 4th gear, and gear changes (if nec-
essary) will have to be made manually.
It is not possible to select the SPORT or
WINTER mode when the Limp-home mode
is active.
You should have the automatic transmis-
sion checked as soon as possible by an
authorized Saab dealer.
The following gears will be engaged in the
respective selector positions when the auto-
matic transmission is in the Limp-home
mode:
Overheated transmission oilIf the transmission oil becomes overheated
while driving, the following message
appears on the SID: TRANSMISSION
OVERHEATING. In this event, stop the car
in a suitable place, switch off the engine,
open the hood and wait until the message
goes out. When driving subsequent to the
transmission oil overheating, select either
3rd gear or Drive, whichever will allow the
engine to run at 3,000 rpm and maintain the
speed of traffic or a safe speed.
The transmission oil can become very hot
when the car is driven with a heavy load; for
example, driving with a trailer on hilly roads
when the wrong gear has been selected,
resulting in many extra gear changes.
Select one of the positions 1, 2 or 3. A high
outside temperature or a defective oil cooler
can also cause the oil temperature to
increase. Contact an authorized Saab
dealer, see also page 173.
Driving in hilly country with a heavy
loadOverheating of the automatic-transmission
fluid can occur when the car is towing a
heavy load, such as a trailer in hilly country,
with the wrong gear selected, resulting in
abnormally frequent gear changing. To
avoid the transmission oil from overheating
always drive in Normal mode, then the
adaptive gear change pattern is active.
High ambient temperatures can also
increase the temperature of the transmis-
sion fluid or the oil cooler may be faulty. As
the transmission fluid temperature
increases, its useful service life is reduced.
Contact an authorized Saab dealer (see
also page 173).TowingTowing a car with automatic transmission,
see page 181. Position R D 3 2 1
Gear Reverse 4th 4th 3rd 3rd
NOTEIf the control module has actuated the
Limp-home function for the automatic
transmission, the car will remain in 4th
gear when D and 3 are selected, making
it very sluggish. To overcome this, move
the selector lever to position 1. The trans-
mission then starts in 3rd gear. When the
car is moving you can select position D
or 3.
WARNING
Remember to use engine-braking (selec-
tor position 1, 2, or 3) to spare the brakes
when you are driving on a long or steep
downhill slope.
Brake failure can result from overheated
brakes!
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170 Starting and drivingEconomical motoringFactors affecting fuel consumption Fuel consumption is greatly affected by the
general driving conditions, the way in which
the car is driven and at what speeds, the
weather, the state of the road, the condition
of the car, etc. Breaking-in Fuel consumption may be somewhat higher
during the break-in period (the first 3,000–
4,000 miles (5,000–7,000 km). Weather conditionsFuel consumption can be as much as 10 %
lower in summer than in winter. The higher
consumption in cold weather is explained by
the longer time it takes for the engine to
reach normal operating temperature, and
for the transmission and wheel bearings to
warm up. Fuel economy is also affected by
the distance driven: short journeys of
3-5 miles (5-8 km) do not give the engine
enough time to reach normal temperature.
Strong winds can also affect fuel consump-
tion. How to read the graph:
If fuel consumption with the engine at
normal temperature is 28 mpg
(10l/100 km), the actual fuel consumption 3
miles (5 km) after the engine has started
from cold will be:
– 23.5 mpg (12l/100 km) at outside temp.
of 68°F (20°C) (increase of 20%)
– 17.7 mpg (16l/100 km) at outside temp.
of 32°F (0°C) (increase of 60%)
– 14 mpg (20l/100 km)) at outside temp. of
–4°F (–20°C) (increase of 100%)
As can be seen, both the distance travelled
by the car and the outside temperature have
a major impact on fuel consumption after the engine has started from cold. Thus, if the
car is mainly used for short journeys of
3–5 miles (5–8 km), the fuel consumption
will be 60–80 % higher than normal.
Driving technique To obtain the best running economy, not
only regarding fuel consumption but gen-
eral wear also, regular service is required.
 High speed, unnecessary acceleration,
heavy braking and much low gear work all
gives rise to higher fuel consumption.
 Frequent gear changing in traffic, starting
in cold weather, the use of studded tires
and roof racks, and towing a trailer all
increase fuel consumption.
 Do not run the engine when the car is sta-
tionary.
If idling, it will take much longer before the
engine becomes hot. Engine wear is
greatest during this warming-up phase.
Therefore drive away as soon as possible
after the engine is started and avoid high
revving.
WARNING
Never switch the engine off while driving
as the effect of the brakes and power
steering will be greatly reduced.
IB311
Percentage increase in fuel consumption
of engine starting from cold compared to
engine at normal temperature
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183 Starting and driving
5 Check that the jumper cables do not
have loose or missing insulation. If they
do, you could get a shock and also the
vehicles could be damaged.
Before you connect the cables, here are
some basic things you should know.
Positive (+) will go to positive (+) and
negative (-) will go to a major metal
engine part with a good ground. Do not
connect (+) to (-) or you will get a short
that could injure you or would damage
the battery and maybe other parts as
well.
6 Connect the red positive (+) cable to the
positive (+) terminal of the vehicle with
the discharged battery.
7 Do not let the other end touch metal.
Connect it to the positive (+) terminal of
the good battery. Use a remote positive
(+) terminal if the vehicle has one.
8 Now connect the black negative (-)
cable to the good battery’s negative ter-
minal.9 Attach the cable at least 18 inches
(45 cm) away from the discharged bat-
tery, but not near engine parts that
move. To avoid an arc which could det-
onate the hydrogen gas around the bat-
tery, the final connection must be at least
18” from the battery.
10 Start the vehicle with the good battery
and run the engine for a while.
11 Try to start the vehicle with the dis-
charged battery. If it does not start after
a few tries, it probably needs service.
12 Remove the cables in reverse order to
prevent electrical shorting. Take care
that they do not touch each other or any
other metal.
WARNING
Using a match or flame of any kind near a
battery can cause battery gas to explode.
You can suffer burns or be blinded. Use a
flashlight if you need more light.
Be sure the battery has enough water.
The battery installed in your new Saab
has filler caps. Be sure the right amount
of water is there. Add distilled or boiled
water if the level is too low. If you don’t,
explosive gas could be present.
Be sure the electrolyte in the battery is not
frozen. Discharged batteries will freeze.
When connecting jumper cables to a
frozen battery, gas from the chemical
reaction inside the battery can build up
under the ice and cause an explosion.
Battery fluid contains acid that can burn
you. Do not get it on you. If you acciden-
tally get it in your eyes or on your skin,
flush the area with water and get medical
help immediately.
WARNING
Do not let the other end touch anything
until the next step. The other end of the
negative cable does not go to the dead
battery. It goes to a major metal part with
a good ground on the engine of the vehi-
cle with the discharged battery.
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188 Car careEngineThe engine is a transverse four-cylinder
in-line engine with twin overhead camshafts
and 16 valves.
The engine is equipped with two balance
shafts that reduce engine vibration to a min-
mimum.
The balance shafts are chain-driven and
rotate at twice the speed of the crankshaft.
They produce forces and torques that are
opposed to those generated by the pistons
and connecting rods. The effect occurs
twice in each revolution of the engine, coun-
teracting the vibration from its moving parts,
and at the same time reducing unwanted
engine noise.
The gearbox, located on the right (viewed
from the front), is integrated with the engine.
Engine familiesSaab cars imported into the United States
and Canada meet all applicable emission
control standards. The engine family and
appropriate tune-up specifications are iden-
tified on a label affixed to the left front inner
fender.
These engine families meet applicable EPA
Federal Standards, California State Stan-
dards and Canadian Federal Standards and
are equipped with the following systems:
• Sequential multiport fuel injection system.
 Three way catalytic converter.
 Crankcase emissions control system.
 Evaporative emission system.
Emission control
systemsThe systems for controlling emissions to the
atmosphere require regular checking and
adjustment at the intervals specified in the
service program.
In addition to meeting the exhaust emission
regulations and thereby helping to keep the
environment clean, a correctly tuned engine
will also give maximum fuel economy.
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190 Car careEngine oilChecking the fluid level Regularly check the oil level in the engine.
Do this with the car standing on level ground
with the engine warm, 2-5 minutes after it
has been turned off. Take the dipstick out
and wipe it off with a clean rag before carry-
ing out the check.
The level must not be below the MIN mark
on the dipstick, but nor should it be above
the MAX mark. Excess engine oil could
result in abnormal oil consumption.
The distance between MIN and MAX corre-
sponds to a volume of about one quart.
When necessary, add oil of the recom-
mended grade via the dipstick pipe. Make
sure that the cap of the dipstick is screwed
on properly after the check. Oil changingThe engine oil must be changed in accor-
dance with the service program.
Oil volume and grade, see page 237.
Oil changing should be carried out on a
warm engine. 1 Unscrew the drain plug in the bottom of
the sump and leave the oil to drain into
an oil tray or other suitable receptacle for
at least ten minutes. Take care, as the oil
may be hot.
2 After the oil has been drained, unscrew
and remove the oil filter.
3 Fit a new filter and tighten it by hand.
4 Refit the drain plug with a new washer.
5 Add new oil.
Run the engine to normal temperature and
check the oil level.
IB890
Oil filler cap and dipstick
IB891
Drain plug
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191 Car care

Transmission fluidManual transmissionCheck and top up the fluid in accordance
with the service program.
If original fluid cannot be obtained for top-
ping up, Dextron III (synthetic fluid) auto-
matic transmission fluid can be used. If so,
the car should be taken to an authorized
Saab dealer as soon as possible to have the
reason for low fluid level corrected and orig-
inal fluid installed.Automatic transmissionCheck the fluid level as follows:
1 Park the car on level ground and apply
the parking brake. The automatic trans-
mission fluid must be at normal running
temperature, approximately 175°F
NOTEChange of engine oil and oil filter may be
required more frequently (5000-mile
intervals (8,000 km)) if any one of the fol-
lowing conditions apply to the car:
 Most trips are less than 5 to 10 miles (8
to 16 km). This is particularly important
when outside temperatures are below
freezing.
 Most trips include extensive idling
(such as frequent stop-and-go driving).
 Most trips are through dusty areas.
 You frequenty tow a trailer or use a car-
rier on top of your vehicle.
 If the vehicle is used for delivery ser-
vice, police, taxi or other commerical
applications.
WARNING
 Prolonged and repeated exposure of
the skin to engine oil can cause seri-
ous skin disorders.
 Avoid prolonged skin contact when-
ever possible. Wash the affected area
thoroughly with soap and water after
any contact.
 Keep oil out of reach of children.
 Do not touch the turbocharger or
manifold. These get very hot when the
engine has been running.
 Do not spill oil on hot parts of the
engine as this could cause a fire. Used
engine oil is particularly flammable.
 Protect the environment. Do not dis-
pose of oil in the ground or down a
drain. Dispose of all used oil and oil fil-
ters at an appropriate disposal facility.
+80°
MIN MAX
+80°
IB495
Oil dipstick, automatic transmission
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193 Car care
The coolant does not normally have to be
changed during the service life of the car.
This type of coolant has a reddish colour
and should not be mixed with other types of
coolant. Saab Original coolant should be
used all year round. Only use coolant
approved by Saab.
Air filter
NOTEAlways mix the antifreeze with the
appropriate volume of water before
adding it to the cooling system.
If pure antifreeze is added, the engine
could still freeze and be damaged. This is
because the antifreeze will not mix
properly with the coolant before the
thermostat has opened to allow full
circulation.
WARNING
Only use an air filter recommended by
Saab Automobile AB.
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