Engine SAAB 9-3 2002 Manual PDF

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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195 Car care
Power steeringCheck the level of the power-steering fluid
in the reservoir regularly, in accordance with
the service program.
The wheels should point forward during the
check.
Clean around the cap before it is
unscrewed.
Unscrew the cap and wipe the dipstick. To
check the fluid level, first screw the cap on
fully again and then remove. The level
should be between the MAX and MIN marks
on the dipstick when the oil temperature is
about 68°F (+20°C). If the oil is colder the oil
level can be lower, and in higher tempera-
tures the level can be higher, both of which
are acceptable.
Top up with power-steering fluid CHF 11S
(part number 8996860).
Battery
WARNING
Do not fill the power steering fluid to
above the MAX mark. Too much fluid can
result in leakage.
Power steering fluid on hot engine com-
ponents constitutes a fire risk.
WARNING
 Work on the battery may entail an
explosion hazard, since the battery
gives off hydrogen which forms an
explosive mixture with the oxygen in
the air.
For this reason, always avoid sparks
or open flames when working near 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 the 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.
IB896
Power steering fluid reservoir
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196 Car careThe liquid level in the car battery must be
checked at regular intervals.
Tap water contains salts and minerals that
accelerate the corrosion of the battery elec-
trodes, which can shorten the life of the bat-
tery.
The charge level should be checked with a
battery-acid tester. The specific gravity of
the acid in a fully charged battery should be
1.28. A specific gravity of 1.18 roughly indi-
cates a 50% charge.If frequent short journeys are made in cold
weather, the battery may need to be given a
booster charge. This can be done either
using a battery charger or by taking the car
for a long drive. A car with standard equipment 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 fitted, such as a mobile
telephone, the time may be reduced to
about 15 days.
Always connect the positive (red) cable to
the positive (+) terminal of the battery and
the negative (blue) cable to its negative (-)
terminal. Always disconnect both battery
leads when boost charging the battery.NOTENever use tap water to top up the battery.
Use distilled or boiled water.
NOTEA discharged battery can freeze and frac-
ture. Batteries should therefore always be
stored away from frost.
NOTE• Don’t connect the battery terminals
+ and – the wrong way around.
 Serious damage can occur to the car’s
electrical system if a battery or alterna-
tor lead is disconnected while the
engine is running.
IB897
Taking out the battery
IB1173
Correct fluid level in the battery
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197 Car care
Drive beltThe alternator is situated on the right-hand
side of the engine. It is driven via a poly-V
belt from the crankshaft pulley.
The poly-V-belt also drives the water pump,
the A/C compressor and the steering servo
pump.
The belt tension is critical, and is adjusted
by an automatic belt tensioner.
See also page 61, "Warning charging".
WARNING
 Keep hands and clothing clear of drive
belts when engine is running.
 Always stop the engine before
inspecting drive belts.
 The fan can start even when the
engine is switched off.NOTESerious damage can occur to the car’s
electrical system if an alternator lead is
disconnected while the engine is running.
IB929
Drive belt
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200 Car careChanging bulbs Headlight 1 Unscrew the cover from the back of the light units.
2 Unplug the connector.
3 Unhook the spring clip by pushing it forward and then to the side.
4 Remove the bulb.
5 Insert the new bulb, without touching the glass with your fingers.
Line it up so that the three lugs fit into the corresponding slots in
the reflector and secure it with the spring clip.IMPORTANT! When changing bulbs, use the same type of bulb,
(e.g. Long-life).
Headlight aiming, see page 227.
Parking lights The parking-light bulb is fitted in the same light unit as the headlight
bulb.
1 Remove the bulb holder from the lamp unit.
2 Then take the bulb out of the holder.
WARNING
Before changing a bulb in the engine bay, switch off the engine
to avoid the danger of fingers and hands being injured by
moving parts.
The radiator fan can cut in even when the engine is switched off. NOTESwitch off the ignition before changing a bulb, to avoid possible
short-circuiting. NOTEDo not fit bulbs with a rating above 60/55W, since the headlight
reflector and the wiring of the car are not designed for a higher
wattage.
Do not touch the glass of the bulbs with your fingers. The oil on
your skin can shorten the life of the bulb.
IB903
1 Headlight bulb
2 Parking-light bulb
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207 Car care
MAXI fusesThe MAXI fuses are housed in the fuse box
under the hood. These fuses can be
checked in the same way as the other fuses.
The MAXI fuses are designed to protect the
car’s electrical system from being dam-
aged. Each MAXI fuse protects a number of
electrical circuits and functions and there-
fore has a higher rating (amperage) than the
standard fuses. No spare MAXI fuses are
supplied with the car.
DICE / TWICEDICE = Dashboard Integrated Central Elec-
tronics
TWICE = Theft-Warning Central Electronics
DICE and TWICE are electronic control
modules.
DICE controls, among other things:
 Front lights and interior lighting.
 Instrument illumination.
 Intermittent wiper operation.
 Electric heating of rear window and door
mirrors.
TWICE controls, among other things:
 Central locking.
 Car alarm (Anti-theft system).
 Engine immobilizer.
 Auto checking of lights.
 Electric heating of rear seat.
 Safety belt reminder.
 Electrically adjustable passenger seat.The DICE and TWICE control modules are
linked to a data bus, which is basically an
information carrier that allows information to
be exchanged between all the control mod-
ules and components connected to the bus.
If a fault occurs in any of these components,
diagnostic faults codes are set in the rele-
vant control module, which enhances fault
diagnosis at the Saab dealer.
The scan tool connector for fault diagnosis
is located under the instrument panel on the
driver’s side.
NOTEIf a MAXI fuse blows, it means that there
is a major fault in the electrical system.
Have the car checked without delay by an
authorized Saab dealer.
IB920
MAXI fuse for soft-top system
(Convertible)
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208 Car careFusesNo. Amp Function
A––
B 10 Stop lights, trailer
C 30 Cabin fan, ACC
1 30 Electrically heated rear window and rear-view mir-
rors
220Direction indicators
330Cabin fan, A/C
4 15 Trunk light; switch illumination; electrically powered
radio antenna
5 30 Electrically operated front seat, right
6 30 Cigarette lighter
6A 7.5 Automatic transmission
7 30 Rear window operators, rear-view mirrors, sunroof
8 15 Rear wiper
9 7.5 ACC panel
10 10 Horn
11 7.5 DICE / TWICE
12 20 Stop lights; front fog lights
13 15 Diagnostics; radio
14 30 Front window motors; soft top (Convertible)
15 20 Daytime running lights
16 30 Electrically operated front seat, left
16B 30 Control module, engine management system
17 15 Control module, engine management system;
DICE/TWICE; main instrument panel/SID; memory
for electrically operated driver’s seat; telephone;
cruise control
18 10 Airbag
19 10 ABS; A/C; rear fog light; switch, rear fog light
20 20 Electric heating, front seats; switch, electrically
heated rear window
30 10 20
30 30 15
15 15
10 10 10
10
10
10 30
30 10 20
15
15
15
10 10
20
10 20 20
20 20 15
15
30 15
15 10 15
15
IB918
1 C B A23456
7 6A 8 9 10 11 12 13 14 15 16
17 16B 18 19 20 21 22 23 2425 26 27 28 29 30 3132 33 34 35 3637 38 39
Fuse holder on the end of the instrument panel
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209 Car care
Relay holderUnder the instrument panel next to the steering wheel No. Amp Function
21 10 Switch, manual A/C; soft top (Convertible)
22 15 Direction indicators; Cruise Control
23 20 Soft top (Convertible); telephone
24 7.5 Radio
25 30 Central locking; amplifier
26 30 Control module, engine management system
27 15 High beam flash; ACC
28 10 Control module, engine management system
29 10 Right parking light; license plate lighting
30 10 Left parking light
31 20 Reversing light; windshield wipers; headlight
beam-length adjustment
32 15 Fuel pump
33 15 Electric heating of rear seat
34 10 SID; control module; automatic transmission
35 15 DICE/TWICE; main instrument panel; interior light-
ing
36 10 Relay, starter
37 15 Limp-home
38 25 Oxygen sensor (lambda probe)
39 – –
S–SpareItem Function
A Electric heating of rear seat
B Reversing light, cars with automatic transmission
C1 –
C2 Lock motor, trunk lid
D1 Rear wiper
D2 Rear-window washing
E Ignition switch
F–
G1 Horn
G2 Windshield wipers (intermittent)
H Rear-window heating
IFuel pump
J–
KStart relay
L Main relay (injection system)
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210 Car careFuses and relays Fuse panel in engine bay
No. Amp Function
1––
2 15 Front fog lights
3 40 Radiator fan, low speed
4 10 Vacuum pump
5 15 A/C-compressor
610Left low beam
7 10 Right low beam
8 10 Left high beam
9 10 Right high beam
10 7.5 Headlight wipers
11 – –
12 – Extra lights
13 – –
14 10 Extra heater; water pump (Europe)
15 15 Extra heater (Europe)
MAXI 1 30 Radiator fan, high speed
MAXI 2 50 ABS
Item Amp Function
A Low beam
B High beam
C1 Extra heater (Europe)
C2 –
D Radiator fan, low speed
E Lamp check (filament monitor, front)
F1 – –
F2 – –
G1 Headlamp wipers
G2 Front fog lights
H–
I Radiator fan, high speed
J A/C-compressor
IB919
Fuses and relays in engine bay (left side)
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215 Car care
When changing a wheel, take the tool kit out
first, then the spare wheel.
Changing a wheel
NOTE
To avoid damaging an alloy wheel with a
flat tire, this can be placed outside up in
the spare-wheel well but only while driv-
ing to the closest workshop.
A general rule is that all heavy loads must
be well secured in the luggage compart-
ment, see page 142.
WARNING
 The car jack is designed solely for use
in changing a wheel 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 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 selector 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.
 The jack must stand on a firm, level
surface.
 Stow the jack in the place provided for
it under the panel in the floor of the
trunk. Secure it properly to avoid injury
to passengers in the event of a crash.
 Do not use the jack for any purpose
other than for jacking up the car.
 If light-alloy wheels have been fitted to
the car for several years and a change
is made to steel wheels, the threads
for the wheel bolts in the brake discs
should be cleaned before the thinner
steel wheels are fitted. The innermost
threads in the holes may be clogged
with sand, salt and rust so that the cor-
rect tightening torque cannot be
achieved.
IB1261IB1262
Spare wheel (under the carpet in the
trunk), Saab 9-3 Viggen
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