2007 SAAB 9-3 cooling

7
Engine bay, 2.8 V6Power steering___________ 212
Fluid: checking/topping up__ 212Vehicle identification
number ________________ 293
Colour code _____________ 293
Engine number __________ 293
Warning labels___________ 8
Gearbox number _________ 293Exhaust emission control __ 155
Drive belt _______________ 216
Simple troubleshooting (ACC) 268
Alternator_______________ 216
Turbo gauge ____________ 88
Spark plugs _____________ 286
Ignition system __________ 286Automatic transmission _________ 163
Manual gearbox_______________ 162
Gearbox: technical data_________ 287
Engine: description ____________ 202
Engine oil: topping up __________ 207
Oil grade and viscosity__________ 284
Engine: technical data __________ 283
Important considerations
for driving ___________________ 154Engine oil: checking level________ 207
Battery ______________________ 213
Battery charge ________________ 213
Jump starting _________________ 198
Wash/wipe stalk switch ____ 101
Topping-up fluid _________ 218
Washer jets_____________ 218
Washer fluid ____________ 218Changing a fuse _________ 236
Fuses _________________ 234
Relays ________________ 239
Fuse table ______________ 236ABS brakes_____________ 171
Brake pads _____________ 289
Brake system ___________ 170
Brake fluid______________ 211
Cooling system, coolant capacity__ 283
Coolant: checking/topping-up ____ 209
Driving in hot climates __________ 187
Temperature gauge ____________ 88
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88 Instruments and controlsTemperature gaugeThe temperature gauge shows the temper-
ature of the coolant. The needle should be
in the middle of the scale when the engine
is at normal operating temperature.
If the needle goes into the red zone (which
can occur at high outside air temperatures
or under heavy engine loads), choose the
highest possible gear ratio and the lowest
possible engine speed, and avoid shifting
down.If the needle repeatedly enters the red zone,
stop the car as soon as it is safe to do so and
check the coolant level (see page 209).
Turbo gaugeThe turbo gauge indicates the air volume
used for combustion, which is equivalent to
the engine load.
At low loads and when the engine is used for
braking, the needle will move within the
white zone.
Under certain barometric conditions the
needle may enter the first part of the red
zone without necessarily indicating that a
fault has arisen.
NOTICEIf the needle, despite the above action,
enters the red zone, stop the car in a suit-
able place and allow the engine to idle. If
the needle continues to rise, switch off the
engine.
WARNING
Never open the cap of the expansion tank
completely when the engine is hot, open
with care. The pressure in the cooling-
system can cause hot coolant and steam
to be released. Failure to heed this warn-
ing may result in personal injury.
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106 Instruments and controlsAutomatic climate-
control system (ACC)Fresh air for the cabin is drawn in through an
inlet at the bottom edge of the windshield. It
passes through an effective filter before
reaching the climate control system and
delivery into the cabin. The air is evacuated
via openings in the parcel shelf. It is then led
through outlets on either side of the car
behind the rear bumper.
The Automatic Climate-Control system
(ACC) automatically maintains the desired
cabin temperature, regardless of the
weather outside.
The system will achieve the desired temper-
ature in the quickest possible way.
Note that heating or cooling is not
speeded up by setting the temperature
higher or lower than the final tempera-
ture you desire.
To optimize the performance of the air con-
ditioning system, all windows and the
moonroof3 should be shut. The air vents in
the fascia must be open.The incoming air is treated in three stages:
first it passes through a filter; it is then dehu-
midified and cooled; and finally, if required,
it is heated.
The filter is a combined particle and char-
coal filter. It is so efficient that levels of
noxious substances such as benzene and
toluene are also reduced.To reduce potential misting on the insides of
the windows, the glass should be cleaned
with a quality glass cleaner. How often this
will need to be done depends on how clean
the air is - if there are smokers in the car, the
windows will need to be cleaned more
frequently.
ACC panel1 Temperature setting: left-hand side
2 Manual setting of air distribution
3 Recirculation
4 AUTO (automatic regulation)
5A/C
6 Defroster
7 Rear window heating8 Temperature setting: right-hand side
9 Seat heating, front right seat
10 Manual increase of fan speed
11 Hazard warning lights
12 Manual decrease of fan speed
13 Seat heating, front left seat
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109 Instruments and controls
MAX heat (red indicator):
MAX heating is obtained when the tempera-
ture knob is turned to the first position past
26 (to the red LED).
The driver’s side selection controls air dist-
ribution and the recirculation status. The
temperature can be adjusted on the pas-
senger side.
MAX heating produces:
Maximum heat.
Air distribution to windscreen and floor.
Recirculation OFF.
High fan speed.MAX cooling (blue indicator):
MAX cooling is obtained when the tempera-
ture knob is turned to the first position past
16 (to the blue LED).
The driver’s side selection controls air dist-
ribution and the recirculation status. The
temperature can be adjusted on the pas-
senger side.
MAX cooling produces:
Max. cooling effect (A/C compressor will
run even if AC OFF has been selected).
Air distribution through panel vents.
Maximum fan speed.
Recirculation ON.
Condensation waterWhen the A/C compressor is on, the incom-
ing air is dehumidified. The resulting con-
densation water is drained away through an
outlet under the car.
It is therefore perfectly normal for water to
be seen dripping from this outlet when the
car is parked. The warmer the ambient air
and the higher the humidity, the more con-
densation will form.
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156 Starting and driving Have 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.
NOTICEIf 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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187 Starting and driving
Driving in hot climatesAlways check the coolant level before start-
ing a journey. When the engine is cold, the
coolant must not lie above the KALT/COLD
mark on the expansion tank (boundary
between the upper and lower sections of the
tank).
At the end of a journey, allow the engine to
idle for 2–3 minutes before switching it off.
If the needle on the temperature gauge
enters the red zone, the following message
will be shown on the SID:
1 Stop the car but do not switch off the
engine. Do not remove the cap on the
cooling system expansion tank, even if
the tank is empty. The engine tempera-
ture should decrease. If the temperature
continues to rise with the engine idling,
the engine must be switched off.2 If the engine is idling and the needle on
the temperature gauge falls, wait until a
normal temperature is shown (about in
the middle of the scale) before switching
off the engine. If the coolant needs to be
topped up, carefully unscrew the
expansion tank cap.
Fill as required with a mixture of 50 %
antifreeze and 50 % clean water. Use an
antifreeze approved by Saab.
3 Have the car’s cooling system checked.
We recommend that you contact a Saab
dealer. Hot engine. Make a
safe stop. Idle engine.
WARNING
Exercise care when opening the hood
if the engine is overheated. Never
remove the expansion tank cap
completely when the engine is hot.
The cooling system is pressurized -
hot coolant and vapour can escape.
These can cause injury to your eyes
and burns. Open the cap slowly to
release the pressure before removing
it.
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189 Starting and driving
Recommendations for cars with
automatic transmissionThe following driving time limits are based
on the capacity of the cooling system in hot
weather, i.e. approximately 86°F (+30°C).
The following driving time limits are based
on the capacity of the cooling system in hot
weather, i.e. approximately 104°F (+40°C).When negotiating long hills, bear the follow-
ing important considerations in mind.
Rises in coolant temperature are indicated
by the temperature gauge in the main instru-
ment panel.
The following steps are taken in order as the
temperature of the transmission increases:
Gear change pattern is altered
A/C compressor is switched off
Max. engine torque is reduced
The following message will be displayed on
the SID if the transmission fluid becomes
too hot:
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.
NOTICE Only use a towbar that has been
approved for your car. We recom-
mend that you entrust towbar installa-
tion to an authorised Saab workshop,
which can also provide important
information such as trailer weight.
Your authorised Saab workshop has
information on how the towbar is to be
installed and whether other measures
must be undertaken that could affect
the cooling system or other equipment
We recommend that you contact a
Saab dealer for guidance on how to
connect a trailer hitch.
Exercise care when driving on uneven
roads or against the curb if the car is
heavily laden. This particularly applies
to cars with 17" wheels.
Gradient of
hill, %Max. trailer
weight, lbs.
(kg)Time limit,
minutes
6-8 3330 (1500) unlimited
9-11 3080 (1400) max. 15
12-14 2645 (1200) max. 15
max. 15 2200 (1000) max. 15
Gradient of
hill, %Max. trailer
weight, lbs.
(kg)Time limit,
minutes
6-8 2200 (1000) unlimited
9-11 1760 (800) max. 15
12-14 1100 (500) max. 15
max. 15 880 (400) max. 15
Gearbox too hot. Make a
safe stop. Open hood.
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209 Car care
Air filter
Transmission fluidManual transmission
Check and top up the oil in accordance with
the service program.
Automatic transmission
Check and top up the oil in accordance with
the service program.
CoolantThere is an overpressure in the cooling sys-
tem. Coolant temperatures can sometimes
exceed 212° F (100° C).
If the coolant level drops too low, the follow-
ing message appears on the SID:
The properties of the coolant are retained
for the entire service life of the car. There-
fore, it is not necessary to change the cool-
ant.The coolant contains 45 % antifreeze and
anti-corrosion fluid. This ratio gives the best
cooling effect. Lower concentrations should
be avoided, in view of the corrosion risk.
Coolants of a different brand could damage
the engine or cooling system. We therefore
recommend strict use of coolants that have
been approved by Saab.
Note:
If incorrect coolant is used or added, the life-
time properties will be affected. Even if the
coolant is flushed from the system and
replaced with life-time coolant, life-time
properties are no longer retained and the
coolant must then be drained and replaced
at regular intervals.
WARNING
To ensure reliable operation, only use
an air filter recommended by Saab
Automobile AB.
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.
The cooling system is pressurized –
hot coolant and vapor can escape
when the filler cap is released. These
can cause injury to your eyes and
burns. Loosen the cap carefully, and
let the engine cool before removing
the cap.
Exercise care when adding coolant.
Coolant on hot surfaces constitutes a
fire risk.
Coolant level low.
Refill.
NOTICEIf the cooling system needs topping up,
mix the antifreeze with the appropriate
quantity of drinking water or distilled
water before adding it to the system.
If undiluted 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 ther-
mostat has opened to allow full circula-
tion.
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