2000 SAAB 9-3 catalytic converter

6Engine bay: turboWarning labels ___________ 7
V.I.N. number __________ 229
Engine number _________ 229
Gearbox number ________ 229
Color coding ___________ 229Ignition system _________ 225
Drive belt ______________ 179
Alternator _____________ 179
Spark plugs ____________ 225
Catalytic converter ______ 137
Simple fault tracing
(A/C, ACC) ____________ 207Turbo-compressor ________ 60
Pressure gauge __________ 60
Important considerations
for driving _____________ 136
Technical data: engine ___ 223Manual transmission __________ 173
Automatic transmission ________ 173
Transmission oil ______________ 173
Gearbox: technical data ________ 226
Battery _____________________ 177
Battery charge _______________ 177
Jump starting ________________ 162IB733
Engine: description ____________ 168
Engine oil, level control
and topping up _______________ 172
Engine oil: changing ___________ 172
Oil grade, viscosity ____________ 223
Washer fluid ___________ 180
Topping up with fluid _____ 180
Washer jets ___________ 180
Wiper/washer control stalk _ 74
Steering servo _______________ 177
Fluid checking
and topping up ______________ 177
Coolant, checking
and topping up ________ 174
Coolant, changing ______ 175
Temperature gauge ______ 60
Driving in hot weather ____ 156
Driving in cold weather ___ 154Fuse panels ___________ 187
Changing a fuse ________ 187
Table of fuses __________ 189
Relays _______________ 191
Brake system ________________ 227
Brake fluid __________________ 176
Brake pads __________________ 176
ABS brakes _________________ 149
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56 Instruments and controls
Anti-lock brake warning
This light together with and indi-
cates that a fault has occurred in the ABS
system. Conventional braking without the
ABS function will still be available.
For safety reasons, stop the car and check
the level of the brake fluid (see page 176).
If the level is normal, depress the brake
pedal firmly two or three times. Now check
the level again. If the level is still normal, you
may drive the car, with considerable cau-
tion, to the nearest authorized Saab dealer
to have the brake system checked.

Airbag warning light
This light together with will come on if
a potentially serious fault has occurred in
the airbag system.
This light will come on for about three sec-
onds when the ignition switch is turned to
the Start or Drive position. It should go out
after the engine has started.

Indicator, fuel
This light comes on when there is less than
about 2.5 gallons (10 litre) of fuel left in the
tank.
WARNING
 If the ABS is inoperative, there is a
danger of the rear wheels locking up
on hard braking
 If the level of brake fluid in the reser-
voir is below the MIN mark, the car
should be towed to an authorized
Saab dealer
WARNING
 If the airbag readiness light stays on
after you start your vehicle, it means
the airbag system may not be working
properly.
 The airbags in your vehicle may not
inflate in a crash, or they could even
inflate without a crash.
 To help avoid injury to yourself or
others, have your vehicle serviced
right away if the airbag readiness light
stays on after you start your vehicle.
NOTEIf the car runs out of fuel, air can have
been drawn in with the fuel, which, in turn,
can cause the catalytic converter to be
damaged by overheating.
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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
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138 Starting and drivingStop jump-starting if the engine fails to
start immediately.
 Failure to follow these directions could
result in the catalytic converter and asso-
ciated components being damaged, and
could represent a breach of the warranty
conditions.
RefuelingEnsure that you are using the correct grade
of fuel, unleaded AON 87-93. For optimum
performance we recommend:
AO N 90 for 2.0 Turbo 185 hp.
AO N 93 for 2.0 Turbo 205 hp and
2.3 Turbo Viggen.
If fuel containing a mixture of alcohol is
used, the following restrictions apply:
Methanol: max. 5% by volume.
Ethanol: max. 10% by volume.
MTBE: max. 15% by volume.
The fuel filler cap is located in the right rear
quarter panel.
Switch off engine.
Insert the fuel-pump nozzle beyond the
flange on the filler pipe. Do not withdraw the
nozzle while filling is in progress.
Cease refuelling the first time the pump
stops.
Fuel-tank capacity: 17.0 US gal. (64 liters)
Screw on the filler cap and keep turning until
it has clicked at least three times.
Manually opening the fuel filler door, see
page 131, Convertible, page 52.The most effective way to prevent conden-
sation forming in the tank (and thus avoid
possible running problems) is to keep the
tank well filled.
Before the onset of freezing temperatures in
winter, it may be advisable to add gasoline
anti-freeze to the fuel a few times to dispel
any condensation in the system.
NOTEIf the car runs out of fuel, it is possible for
air to get into the fuel system. If this
happens, the catalytic converter may
overheat and be damaged.
NOTEDo not overfill. Fuel should not come right
up the filler pipe as expansion room is
needed.
WARNING
 Never use fuel for any purpose other
than as engine fuel.
 Gasoline is highly flammable and can
cause severe burns. Never use an
exposed flame in the vicinity of gaso-
line. Never smoke when filling the
vehicle up with gasoline.
IB016
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143 Starting and driving
provide better grip, and the WINTER indica-
tor appears on the main instrument panel.
When the ignition is turned to OFF, the auto-
matic transmission will automatically revert
to Normal mode (see page 147).
Adaptive gear change pattern is a func-
tion of the Normal and Sport modes. It
allows gear changing to be suited to the pre-
vailing driving conditions. The transmission
control module senses the engine load and
temperature of the transmission and selects
one of the four available gear change pat-
terns. Unnecessary gear changes and
undesired temperature increases in the
transmission are avoided.
The automatic transmission has a special
shift pattern during the first minute after a
cold engine is started so that the catalytic
converter will reach its correct working tem-
perature more rapidlyLock-up functionThe automatic transmission has a lock-up
function, which renders the torque con-
verter inoperative in 2nd, 3rd and 4th gears.
The result is reduction in the engine speed
and, hence, fuel consumption.
When the lock-up function comes into oper-
ation, it may give the impression of an over-
drive being engaged.
Shift Lock override1 Apply the parking brake.
2 Make sure the key is in the ON position.
3 Use a small tool such as a screwdriver
and push the lever downwards so that
the detent button can be pressed
approx. 10 mm.
4 Move the selector out of position P to N.
5 Remove the tool.
6 Release the parking brake if the car is to
be moved immediately; otherwise keep
it applied.Check fuse No. 1 (see page 189). If the fuse
is OK, check the battery voltage.
If the problem was cured by changing the
fuse or battery, you do not have to contact a
Saab dealer.
If the fuse blows again as soon as the Shift
Lock feature is activated you should contact
your Saab dealer.NOTEDue to electrical problems it may not be
possible to move the selector out of the
park position, even if the ignition is ON. If
for some reason the selector has to be
moved out of the park position (i.e. to tow
the car a short distance) do as described
below.
IB947
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170 Car careEngine 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.
Saab 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.
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234 IndexElectrical window
_______________ 119
Electrically adjustable seats
_______ 116
Electrically heated front seats ______ 118
Electrically heated rear seat
_______ 118
Electrically heated rear window _____ 79
Electronic starting interlock
_________ 31
Emergency opening, fuel filler door
_ 131
Emergency operation of the soft top,
Convertible
____________________ 46
Emergency operation of the sunroof
_ 120
Emission control systems
_________ 170
Engine bay, cleaning
____________ 201
Engine bay, gasoline engine
_______ 169
Engine break-in period
_______ 140
, 153
Engine number
_________________ 229
Engine oil, change ______________ 173
Engine oil, checking _____________ 172
Engine oil, grade
________________ 223
Engine oil, volume ______________ 223
Engine variants
_________________ 225
Engine, description ______________ 168
Engine, technical data ___________ 223
FFault codes, Audio System
________ 110
Flat spot
______________________ 199
Folding the soft top
_______________ 43
Fuel filler door, emergency opening
_ 131
Fuel gauge
_____________________ 61
Fuel grade _____________________ 224Fueling
_______________________ 138
Fuse table _____________________ 189
Fuses
________________________ 187
GGearbox number
________________ 229
Gearbox oil, checking and changing
_173
Gearbox oil, grade
______________ 226
General safety instructions,
Convertible
____________________ 42
Glove compartment
______________ 123
HHazard warning lights
_____________ 72
Head restraint
__________________ 114
Headlight flasher _________________ 71
Hood
_________________________ 168
Horn signal
____________________ 118
IIf the car does not start
___________ 135
Ignition switch
__________________ 134
Immobilizer
_____________________ 31
Important considerations concerning
cars with catalytic converters
_____ 137Important considerations for driving,
turbo models
__________________ 136
Instrument lighting
________________ 74
Integrated child car seat
___________ 20
Interior lighting
__________________ 121
Interior lighting, Convertible
_________ 52
Interior rearview mirror
___________ 124
KKey
___________________________ 30
Key, removing
__________________ 134
LLabels and plates
_______________ 229
Leather upholstery, care of
________ 200
Load eyes
_____________________ 129
Locks
__________________________ 30
Lowering rear seat
_______________ 125
Luggage compartment
___________ 125
Luggage compartment, Convertible
__ 50
Luggage-compartment lighting
_____ 129
MMain beam
______________________ 71
Main instrument panel
_____________ 54
Maintenance schedule ___________ 212
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