2008 SAAB 9-3 boost gauge

89 Instruments and controls
If the needle repeatedly enters the red zone
and the engine at the same time loses
power, because the monitoring system is
limiting the boost pressure, you should
contact a Saab dealer as soon as possible.
If the speed of the car exceeds 143 mph
(230 km/h), acceleration is limited by reduc-
ing the boost pressure. The pressure gauge
then moves towards the middle of the white
field, indicating a drop in engine power and
consequently the car’s speed.
Fuel gaugeWhen less than about 2.5 gallons (10 litre)
of fuel is left in the tank, a warning light on
the main instrument panel comes on.
Refueling, see page 159.
Saab Information
Display (SID)Various types of information are shown on
the SID: warnings, indications, trip
computer information and information
from the car’s Infotainment System.
Selected gear is shown on the left-hand
side of the display. When gears are
selected manually, the letter M (manual)
and the selected gear are displayed (see
page 170) (cars with automatic transmis-
sion).
In the first row trip computer information is
displayed and in the second row odome-
ter and tripmeter is displayed.
When a message is displayed
The odometer and tripmeter is temporarily
turned off when a two row message is dis-
played. The icon is displayed in the left part
of the display.
The warnings and indications that can be
shown on the SID are listed on page 300.
If there is more than one message on the
SID, a plus sign will be displayed to the left
of the first message. Each message will be
displayed for 10 seconds.
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156 Starting and drivingImportant
considerations for
driving1 Starting and driving
Do not use full throttle until the engine
is warm, so as to avoid unnecessary
wear. If the needle of the turbo gauge
repeatedly enters the red zone, the
engine may suddenly lose power, due
to the initiation of a monitoring system
that limits the boost pressure. We
recommend that you contact a Saab
dealer as soon as possible.
Under certain barometric conditions
(high outside temperature and/or high
altitude) the needle may enter the first
part of the red zone without necessarily
indicating that a fault has arisen.
A protective function (interruption of the
fuel supply) limits the engine speed.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
One of the advantages of boost pres-
sure regulation is that the engine can
also be run safely on gasoline with a
lower octane rating, although not lower
than AON 87. However, engine perfor-
mance will fall slightly and heavy load-
ing and laboring should be avoided. For
optimum performance, use the recom-
mended grade of fuel.
The maximum boost pressure is regu-
lated according to the tendency of the
engine to knock. Short-lived knocking
is perfectly normal. This can occur
when the engine is running at about
3,000 rpm under a heavy load. The
extent of this knocking will depend on
the grade of fuel in the tank.
Isolated instances of knocking can
occur with low-octane fuel. This
controlled form of knocking, followed by
a reduction in the boost pressure, is a
sign that the control system is working
normally, and is perfectly safe for the
engine.The light comes on in the event of an engine
or gearbox fault (cars with automatic gear-
box), which may cause drivability problems
but that does not affect exhaust emission.
The car can still be driven but perhaps with
limited performance.
Contact a dealer whenever an opportunity
occurs. We recommend that you contact a
Saab dealer.
NOTEIf the engine sounds strange there is a
malfunction. We recommend that you
contact a Saab dealer immediately.
The use of fuel with too low an octane
rating can cause serious engine dam-
age.
Limited performance.
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304 IndexDeep water, driving through
_______ 196
Definitions and terminology, tire ____ 254
Determining correct load, tires
_____ 256
Direction indicator stalk switch _____ 101
Direction indicators
______________ 101
Dome light, Convertible
__________ 232
Dome light, SportSedan __________ 232
Donor battery, boost starting
______ 200
Door handles
___________________ 48
Door mirrors
___________________ 124
Drive belt
______________________ 219
Drive belt, length
________________ 293
Driver’s seat with memory
_________ 21
Driving at night
_________________ 197
Driving in cold climates
___________ 187
Driving in deep water
____________ 196
Driving in hot climates ____________ 189
Driving techniques
______________ 185
Driving with a compact wheel fitted
_260
Driving with a heavy load on hilly
roads
________________________ 167
Driving with a load
______________ 196
Driving with a roof load ___________ 194
Driving with the trunk lid open
______ 196
EEasy entry, Convertible
____________ 73
EDR (Event Data Recorders)
______ 284
ESP®
________________________ 177
Economical motoring
____________ 185
Electrical system, technical data
____ 292Electrically adjustable seats
________ 20
Electric engine heater
____________ 186
Electric heating, front seats
________ 115
Electric windows
________________ 121
Electric windows, Convertible
_______ 77
Electronic Stability Program
_______ 177
Electronic steering wheel lock ______ 154
Emergency opening of the narrow
backrest, SportSedan
___________ 142
Emergency operation of the moonroof
132
Engine bay, cleaning
_____________ 267
Engine heater
__________________ 186
Engine immobilizer
_______________ 55
Engine management system
______ 206
Engine number
_________________ 299
Engine oil, checking
_____________ 210
Engine oil, grade
________________ 290
Engine oil, volume _______________ 291
Engine temperature gauge
_________ 88
Engine, description
______________ 205
Engine, technical data ____________ 289
Engines
_______________________ 292
Event Data Recorders (EDR)
______ 284
Extra electrical socket
____________ 136
FFacilitating entry to rear seat,
Convertible
____________________ 73
Factors affecting fuel consumption
__ 185
Filler cap
______________________ 160
Filling a portable fuel container
_____ 161Filling up
______________________ 159
Flat spots, tires
_________________ 246
Floor jack
______________________ 263
Folding down the rear seat backrest,
SportCombi
___________________ 143
Folding down the rear seat,
SportSedan ___________________ 138
Front fog lights __________________ 100
Front towing eye ________________ 197
Fuel container
__________________ 161
Fuel gauge
_____________________ 89
Fuel grade _____________________ 291
Fuel information
_________________ 161
Functions, car alarm
______________ 58
Fuse panel in luggage compartment
_240
Fuse table
_____________________ 239
Fuses
_________________________ 237
GGDO, garage door opener
_________ 126
Gearbox number
________________ 299
General safety instructions,
Convertible
____________________ 62
Glove box
_____________________ 136
Glovebox lighting
________________ 233
HHandbrake
_____________________ 179
Hazard warning lights
____________ 102
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