light SAAB 9-3 2005 Manual Online

200 Car careSaab Trionic engine
management systemThe Saab Trionic engine management
system is a unique Saab development that
combines sequential multiport fuel injection,
electronic distributorless ignition and turbo-
charger boost pressure control into one sys-
tem.
The Trionic engine control module (ECM)
monitors many different engine parameters
such as:
 Intake manifold pressure.
 Intake air temperature.
 Crankshaft position.
 Engine coolant temperature.
 Throttle position.
 The oxygen content of the exhaust gases.
The ECM receives information regarding
engine knocking from a sophisticated feed-
back function in the ignition discharge unit.
By processing all of this information, the Tri-
onic system can control fuel injector open-
ing duration, ignition timing and turbo-
charger boost pressure to provide excellent
engine performance while maintaining low
emissions and fuel consumption.
ORVR (Onboard Refueling Vapor
Recovery)All hydrocarbons formed when refueling will
be recovered by the car and not released
into the atmosphere. The hydrocarbons are
absorbed in an evaporative emission canis-
ter. When the engine is subsequently
started, the evaporative emission canister is
gradually purged as air is sucked into it
through a shut-off valve. The hydrocar-
bon/air mixture passes through the evap
canister purge valve and into the engine
where it is burned. “Refueling”, see
page 153.
When refueling, make sure you screw the
filler cap on and keep turning until it has
clicked 3 times.
NOTICEThe Trionic engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the Engine
malfunction (CHECK ENGINE) light in
the main instrument illuminates, the
Trionic ECM has detected a problem. The
car will continue to operate, but perfor-
mance may be diminished. You should
have your car checked by a Saab dealer
as soon as possible.
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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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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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212 Car careWhen the washer fluid level drops below
1 quart (1 litre), the headlight washers (if
equipped) are deactivated. This is in order
to prioritize the windshield. The following
message is displayed on the SID:
Headlight washers are only available on
certain markets.
Fill with a mixture of washer fluid and water
as recommended by the table on
the packaging to reduce the risk of freezing
and to ensure effective cleaning (see also
page 100).
To prevent the smell of washer fluid from
entering the car, recirculation can be acti-
vated automatically while the windshield is
washed. The recirculation symbol will how-
ever not light up. This function is optional;
contact a Saab dealer.
Washer jetsThe washer jets, which are adjustable, can
be cleaned with a pin if necessary. Washer fluid level low.
Refill.
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213 Car care
Changing bulbsAutochecking of lightsThe bulbs that are most important from the point of view of traffic
safety are monitored by the car’s electrical system. If one of these
bulbs should fail, a message will be displayed on the SID.
Example of SID message:
The following bulbs are not checked: parking lights, front fog lights,
reversing lights, license plate lighting, side marker lights and side
direction indicators.If a stop light bulb fails
If a stop light bulb fails, the adjacent taillight will act as a stop light to
ensure traffic safety. Change the broken bulb when possible.
All rear light bulbs are of the same type and rated 21 W, with the
exception of the license plate lighting which is rated 5 W.
Wrong bulb fitted
If a dipped or main beam bulb of too high a rating is fitted, a bulb
failure message will be shown on the SID (a too high wattage bulb
can damage the reflector).
If the following message is displayed but the bulb shines, it is most
likely that an incorrect bulb has been fitted.
Note:
When changing bulbs, fit the same type of bulb (e.g. Long-Life)
as that removed.
Headlight aiming, page 258.
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.NOTICESwitch off the ignition before changing a bulb, to avoid possible
short-circuiting.
Left low beam failure.
Right high beam failure.
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214 Car careXenon headlight, dipped beam(certain variants only)
Xenon headlights produce roughly two times as much light as halo-
gen bulbs and have a significantly longer service life.
The lamp units consist of a gas discharge lamp containing xenon.
When the lights are switched on a very high voltage activates the
xenon gas. The lamps soon reach full intensity.
Cars with xenon headlights have automatic levelling. The levelling
system is comprised of two sensors, one on the front suspension
and one on the rear suspension, and a control unit by the engine bay
fuse box. Headlight alignment is adjusted automatically to the car’s
load to prevent dazzling drivers in oncoming traffic.
If a fault is detected in the system, the following message will be dis-
played on the SID:
WARNING
Xenon headlights are high tension. All work on xenon headlights,
including changing bulbs, must be carried out by dealer person-
nel.
Headlight levelling
malfunction.
Contact Saab dealer.
Contact a Saab dealer to have a xenon
headlight changed
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215 Car care
Low beam, halogenLeft-hand side
1 Lift aside the hose running along the side of the battery cover.
2 Release the two retainers (a quarter of a turn counterclockwise)
in the leading edge of the cover and remove the cover.
3 Pull up the washer fluid filler pipe.
4 Remove the air pipe from the front edge of the battery box.
5 Pull up the fuse panel in front of the battery (certain variants),
see page 233.
Both sides
1 Remove the cover from the rear of the headlight.
2 Twist the bulb holder counterclockwise and withdraw the holder
from the reflector.
3 Change the bulb without touching the glass with your fingers.
Insert the bulb holder into the reflector and twist it clockwise until
it locks.4 Refit the cover over the rear of the headlight.
Left-hand side
5 Refit the air pipe to the front of the battery box.
6 Refit the washer fluid filler pipe.
7 Refit the battery cover.
NOTICEDo not fit bulbs with a higher rating than 55 W as this could
damage the headlight reflector. Furthermore, the car’s wiring is
not designed to cope with higher wattages.
Retainers on the battery cover Changing the low beam bulb
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216 Car careHigh beam, halogenLeft-hand side
1 Lift aside the hose running along the side of the battery cover.
2 Release the two retainers (a quarter of a turn counterclockwise)
in the leading edge of the cover and remove the cover.
3 Pull up the washer fluid filler pipe.
4 Remove the air pipe from the front edge of the battery box.
5 Pull up the fuse panel in front of the battery (certain variants),
see page 233.
Both sides
1 Remove the cover from the rear of the headlight.
2 Twist the bulb holder counterclockwise and withdraw the holder
from the reflector.
3 Change the bulb without touching the glass with your fingers.
Insert the bulb holder into the reflector and twist it clockwise until
it locks.4 Refit the cover over the rear of the headlight.
Left-hand side
5 Refit the air pipe to the front of the battery box.
6 Refit the washer fluid filler pipe.
7 Refit the battery cover.
NOTICEDo not fit bulbs with a higher rating than 55 W as this could
damage the headlight reflector. Furthermore, the car’s wiring is
not designed to cope with higher wattages.
Retainers on the battery cover Changing the high beam bulb
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217 Car care
Parking lightsThe parking light bulb is located in the same
reflector as the main beam bulb.
Left-hand side:
1 Lift aside the hose running along the
side of the battery cover.
2 Release the two retainers on the battery
cover and remove the cover.
3 Pull up the washer fluid filler pipe.
4 Remove the air pipe from the front edge
of the battery box.Both sides:
1 Remove the cover from the rear of the
headlight.
2 Withdraw the bulb holder from the lamp
unit.
3 Fit the new bulb.
4 Refit the cover over the rear of the head-
light.
Left-hand side:
5 Refit the air pipe to the front edge of the
battery box.
6 Refit the washer fluid filler pipe.
7 Refit the battery cover and hose.
Front turn signal bulbsLeft-hand side:
1 Lift aside the hose running along the
side of the battery cover.
2 Release the two retainers on the battery
cover and remove the cover.
3 Pull up the washer fluid filler pipe.
4 Remove the air pipe from the front edge
of the battery box.
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218 Car careBoth sides:
1 The bulb holder has a bayonet fitting.
Turn the bulb holder counterclockwise
and withdraw it.
2 The bulb also has a bayonet fitting.
Press in the bulb and twist it counter-
clockwise.
3 Fit the new bulb.
4 To facilitate fitting, look in through the
headlight lens when fitting the bulb.
Check that the new bulb is firmly seated.
Left-hand side:
5 Refit the air pipe to the front edge of the
battery box.
6 Refit the washer fluid filler pipe.
7 Refit the battery cover and hose.
Side-mounted turn signal bulbs1 Slide the lamp fitting forward so that its
rear end can be pulled out.
2 Turn the bulb holder counterclockwise
and withdraw it from the lamp fitting.
Change the bulb.
3 To fit, engage the two catches on the
rear edge of the lamp fitting with the
edge of the opening. Then press in the
front edge of the lamp fitting so that the
groove in the spring engages the plastic
edge.
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