2005 SAAB 9-3 engine

203 Car care
Changing engine oil
Engine oil and oil filter should be changed
according to the service program.
For oil volumes and grades, refer to “Tech-
nical data”.
The oil should be drained when the engine
is warm. The car must stand on level
ground.
1 Unscrew the drain plug in the bottom of
the sump and leave the oil to drain into
a suitable receptacle for at least
10 minutes. Take care, as the oil may be
hot.
2 Refit the drain plug with a new washer.
3 Change the oil filter once the engine oil
has drained (see page 204).
4 Fill with new oil.
Run the engine to normal temperature and
check the oil level.
WARNING
 Prolonged and repeated exposure of
the skin to engine oil can cause seri-
ous skin disorders. Avoid prolonged
skin contact whenever possible.
 Used engine oil contains chemicals
that have caused cancer in laboratory
animals. Always protect your skin by
washing thoroughly with soap and
water.
 Keep oil out of reach of children.
 Do not touch the turbocharger or
exhaust 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
dispose of oil into the ground or down
a drain. Dispose of all used oil and
oil filters at an appropriate disposal
facility.
Drain plug
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204 Car careChanging filter
1 Unscrew the oil filter cap.
 Lift the cap slightly and carefully pry
apart the cap and the filter housing.
 Remove the filter cap.
2 Remove the filter. Have paper towelling
or a rag at hand to catch the oil that
escapes from the filter.
3 Fit a new filter.
4 Fit a new O-ring in the cap. Apply a small
amount of new engine oil to the O-ring.
5 Screw on the cap. The correct tightening
torque is 25 Nm (18 lbf. ft).
Air filter
Transmission fluidManual transmissionCheck and top up the oil in accordance with
the service program.Automatic transmissionCheck and top up the oil in accordance with
the service program.
WARNING
To ensure reliable operation, only use
an air filter recommended by Saab
Automobile AB.
Oil filter
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205 Car care
CoolantIf the coolant level drops too low, the follow-
ing message appears on the SID:The properties of the coolant are retained
for the entire service life of the car. There-
fore, it is not necessary to change the cool-
ant.
The coolant contains 45 % antifreeze and
anti-corrosion fluid. This ratio gives the best
cooling effect. Lower concentrations should
be avoided, in view of the corrosion risk.
Other brands of antifreeze can damage the
engine and cooling system.The expansion tank is transparent to facili-
tate checking the coolant level.
When the engine is cold, the coolant must
not lie above the KALT/COLD mark on the
expansion tank (boundary between the
upper and lower sections of the tank, see
illustration).
Top up with a mixture of equal parts of
Saab-approved antifreeze and clean water.
If the expansion tank is empty when coolant
is added, run the engine until warm so that
the thermostat opens. Top up the tank
again, as necessary.
WARNING
 Proceed with caution if the radiator is
boiling when you open the hood.
Never remove the expansion-tank
filler cap when the radiator is boiling.
 The cooling system is pressurized –
hot coolant and vapor can escape
when the filler cap is released. These
can cause injury to your eyes and
burns. Loosen the cap carefully, and
let the engine cool before removing
the cap.
 Exercise care when adding coolant.
Coolant on hot surfaces constitutes a
fire risk.
Coolant level low.
Refill.
Coolant expansion tank
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206 Car careNote:
If incorrect coolant is used or added, the life-
time properties will be affected. Even if the
coolant is flushed from the system and
replaced with life-time coolant, life-time
properties are no longer retained and the
coolant must then be drained and replaced
at regular intervals.
Brake/clutch fluid and
brake padsCheckingBrake fluid should be changed according to
the service program. Refer to the Warranty
and Service Book.
The brake and clutch fluid reservoir is trans-
parent to facilitate checking of the fluid level.
The fluid level should lie between the MAX
and MIN marks.
If the level drops too low, the following mes-
sage appears on the SID:
Top up as necessary with DOT 4 brake
fluid. Do not use DOT 5 fluid.
Use only new brake fluid from a sealed
container.The brake fluid level will fall somewhat as
the brake pads wear. The MAX level in the
reservoir corresponds to the amount of
brake fluid required with new brake pads. If
the fall in fluid level is moderate, due to
normal brake pad wear, topping up is not
necessary.
If the brake fluid should require chang-
ing, this must be carried out at a Saab
dealer.
NOTICEIf the cooling system needs topping up,
mix the antifreeze with the appropriate
quantity of drinking water or distilled
water before adding it to the system.
If undiluted 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 ther-
mostat has opened to allow full circula-
tion.
WARNING
Brake fluid deteriorates as it becomes
old. Because it is hygroscopic, it absorbs
water from the air and, in time, could allow
vapor to form in the brake system, thus
reducing its performance. It is therefore
important that brake fluid be changed
regularly, as specified in the service
program.
Brake fluid level low.
Make a safe stop.
Contact Saab dealer.
Brake fluid reservoir
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207 Car care
The foot brake and parking brake are self-
adjusting.
It is not possible to detect, through abnormal
pedal or parking brake lever travel, whether
the brake pads are worn and need replac-
ing. It is therefore essential that brake pads
be checked regularly, as specified in the
service program.
Brake pads should only be changed at a
Saab dealer. To ensure optimum brake
performance, use only Saab genuine
brake pads.
Power steeringCheck the level of the power steering fluid in
the reservoir regularly, in accordance with
the service program.
The wheels should point directly forwards
during this check.
Clean round the cap before unscrewing it.
Wipe the dipstick. To check the level, screw
down the cap completely and then remove
it again.
The oil level should lie between the MAX
and MIN marks when the oil temperature is
about 68°F (+20°C). If the oil is colder, the
level will be lower, and at a higher tempera-
tures the level will be higher.
Top up with “CHF 11S power steering fluid”.
NOTICEAvoid spilling brake fluid onto paintwork,
since it can cause the paint to bubble and
lift. If any brake fluid is spilled, the area
should be flushed with large quantities of
water as quickly as possible.
WARNING
Power steering fluid on hot engine
components constitutes a fire risk.
Power steering fluid reservoir
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208 Car careBattery
Check the charge state and electrolyte level
of the battery regularly.If frequent short journeys are made, the
battery may need extra charging. This can
be done with a battery charger or by taking
the car for a long run.
If the battery is not being charged while the
engine is running, the following message
will appear on the SID:
Check the drive belt (see page 210). If the
belt is damaged, the engine may overheat,
the battery may not be charged and the A/C
compressor may not work.
WARNING
 When working on the battery, highly
explosive gas can build up. A spark
could ignite this gas that collects
around the battery.
Therefore, always avoid sparks and
open flames in the vicinity of the
battery.
 The battery contains corrosive sulphu-
ric acid. Always wear a face mask or
goggles when working on the battery.
 If battery acid gets into the eyes or
splashes onto skin or clothing, wash
the affected area liberally with water.
If acid gets into the eyes or a large
quantity makes contact with the skin,
seek medical help.
 Battery posts, terminals and related
accessories contain lead and lead
compounds. Wash your hands after
handling
NOTICEA discharged battery can freeze and frac-
ture. Batteries should therefore always be
stored away from sub-zero temperatures.
Battery not charging.
Make a safe stop.
Contact Saab dealer.
Checking the battery electrolyte level.
Level correct if level indicator dark.
Battery should be changed if indicator is
light
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209 Car care
Always connect the positive (red) cable to
the battery’s positive (+) terminal, and the
negative (black) cable to the negative (-)
terminal of the battery. Always disconnect
both battery leads when boost charging the
battery.
A car with standard equipment specifica-
tions and a fully charged battery can be left
for up to 40 days and still have a sufficient
charge for starting. If extra equipment is fit-
ted, such as a mobile phone, the charge
may only be sufficient for about 15 days.NOTICE If boost charging never use anything
but a 12-volt charger, see page 193.
 Do not connect the battery termi-
nals, + and –, incorrectly.
 Serious damage can occur to the car’s
electrical system if a battery or alterna-
tor lead is disconnected while the
engine is running.
 Exercise special care when removing
and fitting the positive (+) cable so as
not to damage the battery disconnect
switch.
Turn the two retainers a quarter turn to
unlock the battery cover.
Battery bracket
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210 Car careDrive beltThe alternator is situated on the right-hand
side of the engine. It is driven by a
poly-V-belt from the crankshaft pulley.A slipping or broken poly-V-belt can
result in:
 no charge to the battery
 no A/C compressor function.
The belt tension is critical and is adjusted
automatically by the belt tensioner.
WARNING
 Keep hands and clothing clear of drive
belts when engine is running.
 Always stop the engine before
inspecting the drive belt.
 The radiator fan is electric and can
start even when the engine is
switched off.NOTICESerious damage can be done to the car’s
electrical system if an alternator lead is
disconnected while the engine is running.
Drive belt
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