2008 SAAB 9-3 catalytic converter

86 Instruments and controlsThis light comes on when there is less than
about 2.5 gallons (10 litre) of fuel left in the
tank.
This light indicates that the headlights or
parking lights are on.
This light comes on when the system is
engaged.This symbol lights up when the system is
operative.
Operation of the ESP
® indicates reduced
cohesion between the tires and the road,
and that extra care should be taken by the
driver.This symbol lights up when the system is
disengaged, see page 178.
If there is a malfunction, the symbol cannot
be turned off by pressing the ESP
® button.
The following message is shown on the
Saab Information Display (SID):
If so, have the system checked at a Saab
dealer.
See also Electronic Stability Program ESP
®
on page 177.
Indicator, fuel
NOTE
If 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.
Headlight and parking
light indicator
Cruise control indicator
light
ESP
® indicator
ESP® OFF indicatorWARNING
The system improves stability and
maneuverability under slippery road and
extreme driving conditions. It must how-
ever not be regarded as a system
to enable the driver to maintain higher
speeds. The same precautions as
normal for safe cornering and driving
on slippery roads must be adopted (see
pages 175/ 177).
Stability control failure.
Contact service.
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157 Starting and driving
Limp-homeThe engine management system has a
diagnostic feature that checks a number of
internal functions. If a fault is detected in the
throttle valve, the engine management
system will set the throttle system to the
limp-home mode. This means:
idling control will be poor (uneven idling
since regulated by ignition and fuel
supply)
engine performance will be reduced
the cruise control will not function
the capacity of the A/C compressor will be
limited.
If the diagnosis function detects a fault in the
engine management system, the light
"Engine malfunction (CHECK ENGINE)" in
the instrument panel will come on (see
page 83). Have the car checked at a work-
shop as soon as possible. We recommend
that you contact a Saab dealer.
Important considerations with
catalytic 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 (precious
metal alloy).
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:
NOTEIf "Engine malfunction (CHECK
ENGINE)" warning light starts to flash
(indicating that the engine is misfiring and
the catalytic converter can be damaged),
ease off the accelerator slightly. The light
should go out or start to shine constantly.
If the light continues to flash despite
easing off the accelerator, you may con-
tinue to drive the car but at the minimum
throttle permitted by the current traffic sit-
uation. Have the car checked as soon as
possible. We recommend that you con-
tact a Saab dealer.
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.
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158 Starting and drivingHave the car serviced regularly in accor-
dance with the service program.
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 a workshop. We
recommend that you contact a Saab
dealer.
If the engine fails to start (in severe cold or
if the battery is flat), the car can be bump
started (manual transmission only) or
started using jump leads 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 5 minutes to give it time
to settle and run smoothly. If, after this
time, the engine still fails to run properly,
switch off the engine to avoid serious
damage to the catalytic converter. We
recommend that you contact a Saab
dealer for advice.Never park the car on dry grass or other
combustible material. The catalytic
converter gets very hot and could there-
fore start a fire.
Never drive off if the engine is misfiring.
If you bump start the car when the engine
is already at normal working temperature,
the engine must start to run on all cylin-
ders. Abort bump starting if the engine
fails to start immediately.
Failure to strictly follow these instructions
can result in damage to the catalytic con-
verter and associated components, and
could represent a breach of the warranty
conditions.
NOTEIf the car runs out of gas, air may be drawn
in with the fuel, which, in turn, can cause
the catalytic converter to be damaged by
overheating.
WARNING
If the engine is being run with the car on a
rolling road or dynamometer, 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 obtain at the corre-
sponding road speed.
Engine management system with catalytic
converter1 Engine control module
2 Oxygen sensor
3 Catalytic converter
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166 Starting and drivingPark Brake Shift LockThe transmission has a security function
known as Park Brake Shift Lock. To move
the gear selector lever out of the P or N posi-
tion, the gear selector lever detent (catch)
must be pressed in at the same time as the
brake pedal is held depressed.
The detent button on the selector lever has
to be pressed in before the lever can be
moved between certain positions.
Temporary override of Park Brake Shift
Lock, see page 168.
Adaptive gear change patternsThe adaptive gear change pattern function
adapts gear changing to the prevailing driv-
ing conditions. The transmission control
module senses the engine load, vehicle
speed and temperature of the transmission.
A suitable gear change pattern is then
selected automatically to avoid unneces-
sary gear changes and undesired increases
in transmission temperature.
Certain variants use a special change pat-
tern for the first few minutes after a cold start
so that the catalytic converter reaches its
working temperature more quickly.
Thermal transmission protectionThe transmission has built-in protection
against overheating. If the temperature of
the transmission fluid exceeds 302°F
(150°C), engine torque will be limited to
147 ft.lbs. (200 Nm).
The following message is shown on the SID:
If this message appears, stop the car as
soon as it is safe to do so and allow the
engine to idle until the message has gone
out. The selector lever should be in
position P.Gearbox too hot. Make a
safe stop. Open hood.
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205 Car care
EngineTurbo 4-cylinder engineThe engine is a transverse four-cylinder
in-line engine with twin overhead camshafts
and 16 valves.
The engine is equipped with two balance-
shafts that reduce engine vibrations to a
minimum.
The balance shafts are chain-driven and
rotate at twice the speed of the crankshaft.
They produce forces and torques that are
opposed to those generated by the pistons
and connecting rods. The effect occurs
twice in each revolution of the engine, coun-
teracting the vibration from its moving parts,
and at the same time reducing unwanted
engine noise.
The gearbox, located on the right (viewed
from the front), is integrated with the engine.
Turbo V6 engineThe V6 engine is a turbocharged V6 engine
produced completely of aluminium with 60°
between the cylinder banks, 4 valves per
cylinder, 2 camshafts per bank.
The camshafts are driven via a chain trans-
mission. The engine is equipped with a
turbo whose turbine collects exhaust pres-
sure from both banks of cylinders.
To obtain optimum performance, fuel con-
sumption and low emission levels the
engine is equipped with CVCP (Continuous
Variable Cam Phasing). This means that
the engine’s intake camshafts can be
adjusted to achieve optimum functionality.
The switches are hydraulic.
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 in the engine bay.
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.
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305 Index
Head restraint, Convertible
_________ 74
Head restraints
__________________ 23
Headlight flasher _________________ 99
Headlight levelling ________________ 98
Headlights
______________________ 98
Hood
_________________________ 204
Horn _________________________ 120
Horn button
____________________ 120
IIf a tire goes flat
________________ 251
Ignition switch
__________________ 152
Immobilizer
_____________________ 55
Important considerations for driving
_156
Important information, petrol-engined
cars with catalytic converters
_____ 157
Indicator lights
___________________ 82
Inflation, tires __________________ 244
Information about fuel
____________ 161
Instrument illumination, adjusting
___ 100
Interior lighting, Convertible
________ 78
Interior lighting, SportSedan and
SportCombi
___________________ 133
Interior rearview mirror
___________ 125
Intermittent malfunctioning, central
locking
_______________________ 50
JJump starting
__________________ 200
KKey
___________________________ 48
Kick-down
_____________________ 167
Kurvljusstrålkastare
_______________ 99
LLabeling, tire sidewall
____________ 252
Labels and plates, location
________ 299
Lashing eyes, SportCombi ________ 146
Lashing eyes, SportSedan ________ 141
Laying the car up
_______________ 181
LATCH (child safety) ______________ 25
Leather upholstery, cleaning
_______ 267
Lighting in luggage compartment,
Convertible
____________________ 79
Limp-home
____________________ 157
Limp-home, automatic transmission
_168
Load carriers, roof
_______________ 194
Load indices, tires _______________ 253
Loading your vehicle _____________ 254
Load-through hatch, SportCombi
___ 145
Load-through hatch, SportSedan ___ 140
Locking a car with flat battery
_______ 51
Locks
__________________________ 48
Long-term parking
_______________ 181
Luggage compartment
___________ 138
Luggage compartment lighting,
Convertible
____________________ 79Luggage compartment lighting,
SportSedan
_______________ 134
, 142
Luggage compartment lighting,
changing
_____________________ 234
MMain instrument panel
_____________ 82
Main/dipped beam
________________ 99
Maintenance schedule
___________ 280
Manual gear selection ____________ 170
Manual gearbox
_________________ 164
Manual tripping of car alarm
________ 58
Materials used in the car, reclamation
273
MAXI fuses
____________________ 238
Memory, driver’s seat
_____________ 21
Messages on SID, Convertible
______ 71
Milometer
_______________________ 90
Moonroof ______________________ 130
Mug holder ____________________ 134
NNew tires, buying
________________ 247
Night driving
___________________ 197
Number plate lighting, changing
____ 233
OORVR
________________________ 207
Oil capacity, engine
______________ 291
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