2003 SAAB 9-5 catalytic converter

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Page 6 of 288

SAAB 9-5 2003 Owners Manual 6Engine compartment,
4-cyl engine
IB1737
Engine ______________________ 202
Checking the oil level ___________ 203
Oil changing__________________ 204
Engine oil, specification _________ 261
Brakin

Page 7 of 288

SAAB 9-5 2003 Owners Manual 7
Engine compartment,
3.0t V6
IB1738
Warning labels __________ 8
V.I.N. number ___________ 269
Engine number __________ 269
Gearbox number ________ 269
Color code _____________ 269Ignition sw

Page 59 of 288

SAAB 9-5 2003 Owners Manual 59 Instruments and controls
CHECK message indicator
This light indicates that there is a message
in the Saab Information Display (SID). A
chime will also sound
(see page 69).
Central warning ligh

59 Instruments and controls
CHECK message indicator
This light indicates that there is a message
in the Saab Information Display (SID). A
chime will also sound
(see page 69).
Central warning light
This light will come on and a chime will
sound if a fault has been detected in any
system that is critical to safety. Any of the
following can activate the central warning
light and alarm:
Airbag system.
Low oil pressure in engine.
Parking brake is on (when car is moving).
Brake fluid level low.
Fault detected in ABS system.
Electronic brake force distribution (distri-
bution of brake pressure between front
and rear wheels).
Engine overheating.
Alternator not charging properly.
Engine malfunction
(CHECK ENGINE)
This light indicates a malfunction in the
fuel-injection or ignition system. The car
may still be driven with care and with some-
what diminished performance (see page
155).
Indicator, fuel
This light comes on when there is less than
about 2.5 gallons (10 liters) of fuel left in the
tank.
WARNING
An illuminated ”Engine malfunction
(CHECK ENGINE)” indicator light indi-
cates an engine-related problem. While
your car may be able to be driven with the
”Engine malfunction (CHECK ENGINE)”
indicator light illuminated (Limp-home
mode), you are advised to have your car
serviced at an authorized Saab dealer as
soon as possible.
Continued driving without this problem
being corrected might cause serious
further damage to your car and create
unsafe driving conditions. The operator
should be prepared to take action if such
unsafe conditions arise (e.g.brake
smoothly, engage neutral, stop in a suita-
ble place, switch off the engine, etc.).
NOTICEThe car should be checked immediately
at an authorized Saab dealer to prevent
more serious faults from arising.NOTICEIf the car runs out of fuel, air can be drawn
in with the fuel, which, in turn, can cause
the catalytic converter to be damaged by
overheating.
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Page 155 of 288

SAAB 9-5 2003 Owners Manual 155 Starting and driving
Limp-home modeThe car’s engine-management system
includes a diagnostic function that checks
numerous internal functions after the
engine has been shut off. If a fault is

155 Starting and driving
Limp-home modeThe car’s engine-management system
includes a diagnostic function that checks
numerous internal functions after the
engine has been shut off. If a fault is
detected in the throttle system, the
engine-management system puts the throt-
tle system into the limp-home mode. This
limits idling control, disables the cruise-con-
trol system and limits the capacity of the A/C
compressor.
If the limp-home mode is in operation
(”Engine malfunction (CHECK ENGINE)”
light on, see below) and the outside temper-
ature is close to or below freezing, you may
need to use some throttle on starting (some
pressure on the accelerator).
If the diagnostic system has detected a fault
in the engine-management system, the
”Engine malfunction (CHECK ENGINE)”
light on the main instrument panel will
come on (see page 59), indicating that you
should have the car checked as soon as
possible by an authorized Saab dealer.
Important
considerations for
drivingThe engine-management system in the
Saab 9-5 is called Saab Trionic T7. The
system manages the ignition, fuel injection
and turbo boost pressure.
The Trionic T7 system developed by Saab
is an intelligent engine-management
system designed to achieve optimum driv-
ability under differing driving conditions.
The system makes adjustments automati-
cally, for instance, if the car is being driven
at altitude (oxygen-deficient air), for differ-
ent grades of fuel (AON 87–93) and for dif-
ferent load conditions.
1 Starting and driving
Refrain from using full throttle before
the engine has warmed up (before
needle in mid-range on temperature
gauge).
A safety function prevents the engine
from revving faster than 6,000 rpm by
limiting the induction air.
2 Stopping the engine
Do not rev the engine immediately
before switching it off – stop the engine
when it is idling.
3 Regulating the boost pressure
The system is optimized for fuel with an
octane rating of AON 90. The 2.3 T
(Aero) and 3.0t V6 are optimized for
NOTICEIf the CHECK ENGINE warning light
starts to flash, ease off the accelerator
slightly. If the light does not cease to flash
within 5 seconds, stop the car in a suit-
able place as soon as possible and turn
off the engine. The car must be towed to
an authorized Saab dealer.
If the CHECK ENGINE warning light
flashes, it indicates that the engine is mis-
firing which can result in damage to the
catalytic converter.
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Page 156 of 288

SAAB 9-5 2003 Owners Manual 156 Starting and driving
AON 93. One of the advantages of the
system is that it enables the engine to
be run safely on lower-grade fuel,
although not lower than AON 87.
The maximum boost pressur

156 Starting and driving
AON 93. One of the advantages of the
system is that it enables the engine to
be run safely on lower-grade fuel,
although not lower than AON 87.
The maximum boost pressure is
adjusted automatically to the knocking
or pinging tendency of the engine.
Occasional, short-lived knocking when
the engine is under a heavy load is per-
fectly normal; the extent will depend on
the grade of fuel in the tank.
Isolated instances of knocking are
more likely to occur with low-octane
fuel. This controlled form of knocking,
followed by a reduction in the boost
pressure, is a sign that the wastegate is
functioning and is perfectly safe for the
engine.

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 flat), the car can
be push started (manual gearbox only) or
started using jumper cables to a donor
NOTICE If the engine sounds strange there is a
fault in the system. Have the car
checked without delay by an autho-
rized Saab dealer.
The use of fuel with too low an octane
rating can cause serious engine dam-
age.
WARNING
If 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.
NOTICEUse only unleaded gasoline. Leaded gas-
oline is detrimental to the catalyst and
oxygen sensor and will seriously impair
the function of the catalytic converter.
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Page 157 of 288

SAAB 9-5 2003 Owners Manual 157 Starting and driving
battery. However, as soon as you have
started the engine, it is important that it
runs on all cylinders. If it is misfiring, allow
i t t o i d l e f o r u p t o f i v

Page 201 of 288

SAAB 9-5 2003 Owners Manual 201 Car care and technical information
Engine familiesSaab cars imported into the United States
and Canada meet all applicable emission
control standards. The engine family and
appropriate tune-up

201 Car care and technical information
Engine 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 control system.
On-Board diagnostic (OBD II) 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 and
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.
NOTICEThe Trionic engine management systems
continuously monitors the operation of
these systems and have on-board diag-
nostic capabilities (OBD II).
If the ”Engine malfunction (CHECK
ENGINE)” lamp in the main instru-
ment illuminates, this indicates that 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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Page 273 of 288

SAAB 9-5 2003 Owners Manual 273 Index
IndexAA/C system, fault diagnosis
________ 242
A/C system, maintenance _________ 242
ABS brakes
____________________ 172
ACC
__________________________ 77
ACC functions
_________________

273 Index
IndexAA/C system, fault diagnosis
________ 242
A/C system, maintenance _________ 242
ABS brakes
____________________ 172
ACC
__________________________ 77
ACC functions
___________________ 80
ACC, automatic climate control
______ 77
ACC, calibration
_________________ 85
ACC, condensation _______________ 86
ACC, programming _______________ 83
ACC, useful tips
_________________ 85
Adjusting the steering wheel
_______ 124
Adjustment, seats
________________ 12
Afterheater, V6-engine cars
________ 87
Air conditioning (A/C), fault diagnosis
and maintenance
______________ 242
Air distribution, ACC ______________ 82
Airbag
_________________________ 33
Alarm __________________________ 48
Alarm functions
__________________ 51
Alarm signals
_______________ 48
, 51
Alternator
_____________________ 211
Alternator drive belt
_________ 211
, 263
Alternator rating
________________ 263
Anticorrosion treatment
___________ 246
Antidazzle rear-view mirror
________ 129
Ashtrays
______________________ 135
Audio System
___________________ 89
Audio System, quick guide
_________ 91Autochecking of lights on starting
____62
Automatic climate control (ACC) _____77
Automatic transmission,
technical data
_________________264
Aviod theft, tip
__________________195
BBattery
________________________209
Battery charging/replacing
________210
Battery, boost starting
____________191
Belt guide
______________________17
Boost starting using jump leads
____191
Booster cushion
_________________31
Brake and clutch fluid
____________207
Brake-fluid reservoir
_____________207
Brakes, technical data ____________265
Bulbs, changing
_________________214
Bulbs, table of
__________________225
CCD changer
____________________101
CD player
______________________99
CHECK messages
_______________69
CHECKING
_____________________69
Calibration, ACC
_________________85
Cancelling the programmed settings
__83
Car alarm
______________________48
Car care
______________________197
Cargo net, 9-5 Wagon
____________146
Carpeting, care of
_______________243
Cassette player
__________________96Catalytic converter,
important considerations
________ 156
Central locking
__________________ 42
Change language in SID
__________ 70
Change of address notification
____ 256
Changing a wheel
______________ 237
Changing bulbs
________________ 214
Changing the wheels round
_______ 233
Changing wiper blades
__________ 212
Chassis number
_______________ 269
Chassis number, key to
__________ 270
Child safety
____________________ 23
Child safety locks, rear doors
______ 45
Child seat, integral
_______________ 31
Cleaning, engine bay ____________ 245
Clock
______________________ 69
, 70
Color code, body
_______________ 269
Color code, trim ________________ 269
Compact spare wheel
___________ 236
Compass
_____________________ 130
Condensation, ACC
______________ 86
Coolant
______________________ 206
Courtesy Headlight Feature
_______ 72
Cruise control
_________________ 171
Cup holder
____________________ 138
DDICE/TWICE
__________________ 227
Dampers
_____________________ 265
Date code, tires
________________ 235
Dim-dipped beam _______________ 71
Direction indicators ______________ 73
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