engine coolant SAAB 9-3 2002 User Guide

189 Car care
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.
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
151.
When refueling, make sure you screw the
filler cap on and keep turning until it has
clicked at least 3 times. Otherwise, it is pos-
sible for the CHECK ENGINE light to illumi-
nate and a TIGHTEN FUEL FILLER CAP
message to appear on SID.
NOTEThe Trionic engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the CHECK
ENGINE light in the main instrument illu-
minates, the Trionic ECM has detected a
problem. The car will continue to operate,
but performance may be diminished. You
should have your car checked by a Saab
dealer as soon as possible.
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192 Car care
(80°C). This can be achieved by driving
the car for about 30 min on the open
road.
2 With the engine idling, move the selector
lever to D and wait for at least
15 seconds. Next, move the selector
lever to R and wait for 15 seconds again.
Finally, move the selector lever to P. Let
the engine idle.
3 Wipe the dipstick clean with a lint-free
cloth and put it back.
4 With the fluid at normal temperature, the
level should be between the MAX and
MIN marks on the dipstick. Top up, as
necessary, with Texaco Texamatic Dex-
tron III automatic-transmission fluid,
adding it through the dipstick pipe. The
distance between the MIN and MAX
marks on the dipstick corresponds to a
volume of approximately 0.4 qts
(0.4 litre).
If the outside temperature is below 50°F
(10°C), the fluid will not reach the specified
temperature of 175°F (80°C). In this case,
the correct fluid level may be 0.8 in (20 mm)
below the MAX mark.
CoolantThe expansion tank is transparent, to facili-
tate checking. The level must be a little
under the mark ”KALT – COLD” on the tank
when the engine is cold. If the SID message
"FILL COOLANT FLUID" is displayed, the
level in the expansion tank should be
checked. Top up as necessary with equal
parts of clean water and coolant. Use only
coolant approved by Saab.
If the expansion tank is empty when coolant
is added, run the engine to normal temper-
ature and top up again, as necessary.
Coolant The cooling system is filled at the factory
with coolant containing a 50% concentra-
tion of a combined antifreeze and corrosion
inhibitor. A weaker mixture will result in
reduced anticorrosion protection. For pro-
tection against freezing in very cold
weather, a stronger concentration will be
needed.
A 60% concentration of antifreeze will pro-
vide protection at temperatures down to
-58 F (-50°C).
NOTEIf there is a burnt smell or the fluid is black,
change the fluid as soon as possible.
WARNING
 Proceed with caution if the radiator is
boiling when you open the hood.
Never remove the expansion-tank
filler cap when the radiator is boiling.
Loosen the cap carefully, and let the
engine cool before removing the cap.
 The cooling system is pressurized –
hot coolant and vapor can escape
when the filler cap is released.
 Exercise care when adding coolant.
Coolant on hot surfaces constitutes a
fire risk.
IB892
Coolant expansion tank
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193 Car care
The coolant does not normally have to be
changed during the service life of the car.
This type of coolant has a reddish colour
and should not be mixed with other types of
coolant. Saab Original coolant should be
used all year round. Only use coolant
approved by Saab.
Air filter
NOTEAlways mix the antifreeze with the
appropriate volume of water before
adding it to the cooling system.
If pure antifreeze is added, the engine
could still freeze and be damaged. This is
because the antifreeze will not mix
properly with the coolant before the
thermostat has opened to allow full
circulation.
WARNING
Only use an air filter recommended by
Saab Automobile AB.
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237 Technical data
Engine Engine oilType _____________________________ 4 cyl, 2 overhead
camshafts,
16 valves and 2 bal-
ancer shafts
Cylinder bores ______________________ 3.54" (90 mm)
Stroke:
2.0 Turbo _________________________ 3.071" (78 mm)
Viggen __________________________ 3.543” (90 mm)
Swept volume:
2.0 Turbo _________________________ 121 cu.in.
(1,985 dm
3)
Viggen __________________________ 140 cu.in.
(2.290 dm3)
Idling speed _______________________ 900 rpm
Antifreeze _________________________ Saab-approved
antifreeze
Coolant volume, cooling system ________ 8.7 qts. (8.5 l)
Oil recommendation: We recommend the use of oils that are available from your
Saab dealer, for regular oil changes. These oils fulfill the most
stringent requirements set by API and ACEA classifications.
Basic recommendations for Saab engines
 SAE 5W-30 or 0W-30, 5W-40.
The oil should be semi or fully synthetic and fulfill grade re-
quirements for ACEA A3/B3, API SJ or higher. In addition to API
and ACEA the ILSAC GF-3 specification is approved for use in
applicable markets.
Fully synthetic oils with viscosity’s 0W-40/50 of well known
brands and fulfilling minimum ACEA A3/B3 are also recom-
mended, especially for extreme driving conditions.
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247 Index
IndexAA/C system, fault diagnosis
________ 226
A/C system, maintenance _________ 226
ACC
__________________________ 84
ACC, useful tips
_________________ 92
Adjustment, steering wheel
________ 131
Air conditioning (A/C), fault diagnosis
and maintenance
______________ 226
Airbag
_________________________ 28
Alarm __________________________ 41
Alarm functions
__________________ 44
Alarm signals
___________________ 44
Anti-corrosion treatment
__________ 222
Anti-theft system
_________________ 41
Ashtray
_______________________ 135
Audio System
___________________ 93
Automatic climate control (ACC)
_____ 84
Automatic transmission
___________ 156
BBattery
________________________ 195
Boost starting from donor battery
___ 181
Brake fluid, check
_______________ 194
Brake fluid, grade _______________ 241
Brake pad wear indicators
___ 164
, 194
Brakes
________________________ 164Braking
_______________________164
Bulb table _____________________205
CCD changer
____________________102
CD player
_____________________100
CHECK messages
_______________72
CHECKING
_____________________72
Cabin lighting __________________133
Calibration, ACC _________________90
Car alarm
______________________41
Care of safety belts
______________218
Central locking
__________________36
Change of address notification
_____232
Changing a wheel
_______________215
Changing bulbs
_________________200
Changing the engine oil
__________190
Changing the key battery __________39
Changing the wheels round _______212
Changing wiper blades
___________198
Chassis number
________________243
Child car seats
__________________19
Child safety
_____________________19
Child safety locks, rear doors
_______39
Child seats
_____________________19
Cigar lighter ____________________135
Cleaning the soft top, Convertible
____57
Climate-control system, manual
_____80
Compact spare wheel
____________214
Condensation water, A/C __________82Condensation water, ACC
_________ 85
Convertible
____________________ 47
Coolant
______________________ 192
Courtesy Headlight Feature
_______ 76
Cruise Control
_________________ 163
Cup holder
____________________ 134
DDICE/TWICE
__________________ 207
Date code, tires ________________ 214
Dim low beam
__________________ 75
Dimmer
_______________________ 78
Direction indicators
______________ 76
Direction-indicator stalk
___________ 76
Dome lighting
_________________ 133
Door mirrors
__________________ 137
Drive belt
_____________________ 197
Driving in deep water
____________ 179
Driving in hot weather ___________ 173
Driving technique
_______________ 170
Driving with a compact spare wheel

184
Driving with a load
______________ 178
Driving with a roof load
__________ 176
Driving with the trunk lid open
_____ 179
EEconomical motoring
____________ 170
Electrical system, technical data
___ 240
Electrical window
_______________ 130
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