55 Instruments and controls
Warning charging
This light comes on together with if the
battery is not charging. If it comes on while
you are driving, stop the car as soon as pos-
sible and switch off the engine.
Check the alternator drive belt (see page
179). If the belt has broken, the engine may
overheat (cooling system will not function
properly), the belt is slack or broken, battery
charging will be poor and engine cooling
unsatisfactory.
Brake warning light
This light will come on together with if
there is insufficient brake fluid in the reser-
voir, see page 176.
If the ABS warning light is on at the same
time, the ABS system may be inoperative
because of a fault (see anti-lock brake warn-
ing).
Parking brake warning
light
The light will show when the parking brake
is on (see page 151.)
If the car driven with the parking brake on,
will also come on and a chime will
sound.
The parking brake is mechanical and oper-
ates on the rear wheels.
WARNING
Never drive the car when these warning
lights are on. Danger of brake failure!
Have the brake system checked at once
by an authorized Saab dealer.
WARNING
• Always apply the parking brake when
parking
Always apply the parking brake before
removing the ignition key
Do not apply the parking brake while
the car is moving (see page 151)
ProCarManuals.com
80 Instruments and controlsAutomatic climate
control (ACC)The air is drawn in through an intake at the
bottom edge of the windshield. It passes
through an efficient filter before being
routed through the climate-control system
and into the cabin. The cabin discharge vent
is located on the right behind the rear
bumper. The air discharge vents should be
kept free of snow and ice in the winter.
ACC (Automatic Climate Control) automati-
cally maintains the desired cabin tempera-
ture, regardless of the weather outside.
The system will achieve the desired temper-
ature in the quickest possible way.
Note that heating or cooling is not
speeded up by setting the temperature
higher or lower than you really want.
For the ACC system to be most effective, all
windows, and the sunroof if there is one,
must be closed, and the panel vents must
be open.
The incoming air is treated in three stages:
first it passes through a filter; it is then dehu-
midified and cooled and, finally, if required,
heated. The temperature interval within which you
can make adjustments is 58-82°F
(15-27°C). Outside it, there is the HI position
(max. heat and high fan speed) and the LO
position (max. cooling and max. fan speed).
The displayed temperature is not the actual
temperature but corresponds to the comfort
level normally experienced at that tempera-
ture after allowance has been made for the
air flow, relative humidity, solar radiation,
etc., currently prevailing inside the car.
The most usual temperature setting is
66-74°F (19-23°C), depending on per-
sonal preference and what clothing is
worn. It is recommended that changes in the
temperature setting be made in steps of
2°F (1°C).
Conversion between °C and °F is done in
the SID unit; see ”Units and language ver-
sions”, page 69.
During the cooling phase in warm
weather the panel vents must be open.
Do not manually select recirculation in
cold/wintery weather. The reduced air
flow can cause misting and ice on the
inside of the windows.
IB794
Air vent at rear side window
IB032
Dash vent 1 Adjusting the direction of the air flow.
2 Adjusting the air flow
ProCarManuals.com
137 Starting and driving
Saab 9-3 Viggen: The Saab 9-3 Viggen has
a high-performance engine which means
that a certain amount of care should be
exercised, in particular when accelerating in
the lower gears. This is especially important
when the road surface is slippery to avoid
the driving wheels losing their grip
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.
Never park the car on dry grass or other
combustible material. The catalytic con-
verter gets very hot and could therefore
start a fire.
Never drive off if the engine is misfiring.
If you jump start the car when the engine
is already up to normal temperature, the
engine must start to run on all cylinders.
NOTEIf constant knocking occurs every time a
load is put on the engine, this indicates a
malfunction in the system.
Have the car checked without delay by an
authorized Saab dealer. NOTEIf the engine is being run with the car on a
rolling road or dynamometer, longer than
for a standard state emission inspection,
to ensure adequate cooling, air must be
blown into the engine compartment and
under the car at a rate equivalent to the
ram-air effect that would be obtained at
the corresponding road speed.
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
ProCarManuals.com
156 Starting and drivingDriving in hot weather Always check the coolant level before
starting a journey. When the engine is
cold, the coolant must not be above the
KALT/COLD mark on the expansion tank.
At the end of a journey, if the engine has
worked hard, allow it to idle for two or
three minutes before switching it off.
If the needle on the temperature gauge
enters the red zone:
1 Bring the car to a standstill but leave the
engine running. Do not remove the cap
on the expansion tank even if the tank is
empty. The engine temperature should
decrease. If the temperature continues
to rise with the engine idling, the engine
must be switched off. 2 If the engine is idling and the needle on
the temperature gauge falls, wait until a
normal temperature is shown (about in
the middle of the scale) before switching
off the engine. If the coolant needs top-
ping up, unscrew the cap on expansion
tank carefully.
Top up, as necessary, ideally with a
50/50 mixture of coolant and water. Use
a Saab-approved coolant. If only water
is available, use that, but remember to
have the coolant mixture checked as
soon as possible.
3 As soon as possible, have the cooling
system checked by an authorized Saab
dealer.
Towing a trailerTrailer hitch attachment Trailer hitch attachments are available as
accessories. These are designed for a max-
imum trailer weight of 2000 lbs (900 kg),
see also page 222.
Use only the electrical trailer hitch socket
provided in the trailer hitch kit.
Saab recommends:
Use a Saab original hitch kit attachment
which is designed and tested by Saab.
Consult your Saab dealer as regards the
right hitch kit for your car.
WARNING
Always undo the expansion tank filler cap
carefully, releasing the pressure and any
vapor before removing the cap com-
pletely.
NOTEUse only a genuine Saab trailer hitch and
wiring, since other wiring methods can
cause expensive damage to the car’s
body and electrical system.
Consult an authorized Saab dealer for
guidance on how to connect the trailer
hitch electrical system.
ProCarManuals.com
157 Starting and driving
Trailer weightMaximum recommended trailer weights for
different gradients, for best comfort and
driveability for manual and automatic cars,
are shown in the drawing.
Make sure you are familiar with the law
regarding speed limits for towing, maxi-
mum trailer weights, trailer-braking
requirements, and also any special
driving-license provisions
(see also page 222).
The specified trailer weights and gradients
assume you are operating in hilly terrain and
therefore apply only to short trips.Recommendations for cars with auto-
matic transmission
The following time limits are based on the
capacity of the cooling system in warm
weather, i.e. approximately 86°F (30°C).
The following time limits are based on the
capacity of the cooling system in warm
weather, i.e. approximately 104°F (40°C).
When negotiating long hills, bear the follow-
ing important considerations in mind:
Do not drive continuously with the WINTER
mode selected in hilly country when you are
towing a trailer, as this will increase fuel con-
sumption and risk overheating the transmis-
sion.
NOTESaab 9-3 Viggen cannot be equipped
with a trailer hitch because of the design
of the body and chassis.
WARNING
When towing a trailer, do not attempt to
negotiate a hill having a gradient in
excess of 15%. The weight distribution
over the front wheels of the car will be
insufficient to prevent wheelspin, making
further progress impossible.
In addition, the parking brake may not
always be able to hold the car and trailer
securely, with the result that the wheels
can start to slide downhill.
Gradient
of hill, % Maximum
trailer
weight, lbs.
(kg)Maximum dura-
tion, minutes
10-15 1890 (850) 15 max.
Gradient
of hill, % Maximum
trailer
weight, lbs.
(kg)Maximum dura-
tion, minutes
10-15 1110 (500) 15 max.
IB1270
ProCarManuals.com
174 Car care
(80°C). This can be achieved by driving
the car for about 30 min on the open
road.
2 With the engine idling, move the selector
lever to D and wait for at least
15 seconds. Next, move the selector
lever to R and wait for 15 seconds again.
Finally, move the selector lever to P. Let
the engine idle.
3 Wipe the dipstick clean with a lint-free
cloth and put it back.
4 With the fluid at normal temperature, the
level should be between the MAX and
MIN marks on the dipstick. Top up, as
necessary, with Texaco Texamatic
Dexron III automatic-transmission fluid,
adding it through the dipstick pipe. The
distance between the MIN and MAX
marks on the dipstick corresponds to a
volume of approximately 0.4 qts
(0.4 litre).
If the outside temperature is below 50°F
(10°C), the fluid will not reach the specified
temperature of 175°F (80°C). In this case,
the correct fluid level may be 0.8 in (20 mm)
below the MAX mark.
CoolantThe expansion tank is transparent, to facili-
tate checking. The level must be a little
under the mark ”KALT – COLD” on the tank
when the engine is cold. If the SID message
"FILL COOLANT FLUID" is displayed, the
level in the expansion tank should be
checked. Top up as necessary with equal
parts of clean water and coolant. Use only
coolant approved by Saab.
If the expansion tank is empty when coolant
is added, run the engine to normal temper-
ature and top up again, as necessary. Coolant The cooling system is filled at the factory
with coolant containing a 50% concentra-
tion of a combined antifreeze and corrosion
inhibitor. A weaker mixture will result in
reduced anticorrosion protection. For pro-
tection against freezing in very cold
weather, a stronger concentration will be
needed.
A 60% concentration of antifreeze will pro-
vide protection at temperatures down to
-58 F (-50°C).
The corrosion-inhibiting properties of the
coolant deteriorate over time, but coolant
approved by Saab can be used for
year-round protection. Change the coolant
as specified in the service program (page
215) and use only coolant approved by
Saab – other makes may need changing
more frequently and may damage the sys-
tem.
NOTEIf there is a burnt smell or the fluid is black,
change the fluid as soon as possible.
Coolant expansion tank
ProCarManuals.com
175 Car care
Changing the coolant(Usually carried out as part of the Saab
original service by an authorized Saab
dealer)
1 If the engine is hot, loosen the expan-
sion-tank filler cap a little to release the
pressure. Leave the cap in place.
2 Fit a suitable piece of hose onto the
nipple of the drain cock. Let the hose dis-
charge into a receptacle under the radi-
ator and open the drain cock, which is
located on the inside of the radiator
facing the engine bay.
3 Remove the filler cap on the expansion
tank.
4 In a couple of minutes the system will be
empty. Close the drain cock. 5 Mix antifreeze and water in a suitable
container. Use only Saab-approved
coolant.
6 Add the coolant slowly to the expansion
tank. This will take about two minutes,
as the air needs time to escape.
7 Screw the expansion-tank cap on and
run the engine to normal temperature.
Top up with coolant until the level is just
under the "KALT – COLD" mark on the
tank.
8 Check the coolant again after a few days
and top up as necessary.
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
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.
Loosen the cap carefully, and let the
engine cool before removing the cap.
The cooling system is pressurized –
hot coolant and vapor can escape
when the filler cap is released.
IB893
Radiator drain cock
ProCarManuals.com
207 Car care
Air conditioning
(A/C system)
Fault diagnosis If a fault occurs in the A/C system, there are
a number of checks you can perform your-
self. If the fault persists, however, have the
system checked by an authorized Saab
dealer.Important!
When the A/C system is in operation, mois-
ture from the air will condense on the evap-
orator. When the car is then parked, this
condensation will drip off the evaporator
and form a small pool of water on the
ground. This is normal. The warmer the
ambient air and the higher the humidity, the
greater the amount of condensation formed.Inadequate cooling:
a Make sure that the temperature and
air-distribution controls are in the
appropriate settings, see page 77.
b Check that the condenser (forward of
the radiator) has not become clogged
with dirt and insects.
c Make sure that the drive belt for the com-
pressor is not slipping, see page 179.
d Check the fuses for the ventilation fans
and compressor, see page 189.
NOTE The A/C system is designed for use
with R134a refrigerant.
Refrigerant handling requires special
equipment and special procedures for
charging and draining the system.
All repairs and adjustments on the A/C
system must be carried out by a Saab
dealer authorized for this kind of work.
Never mix R134a and R12 refriger-
ants.
WARNING
The A/C system is pressurized. Do not
break any connections or undo A/C
system components.
Escaping refrigerant gas can cause
blindness or other injury.
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