2007 SAAB 9-5 engine coolant

174 Starting and driving2 Wait until the needle has dropped back
to indicate normal temperature (roughly
midway, in the white zone) before stop-
ping the engine. If the coolant needs top-
ping up, unscrew the cap on expansion
tank carefully.
Top up, as necessary, ideally with a
50/50 mixture of Saab-approved coolant
and water. If only water is available, use
that, but remember to have the coolant
mixture checked as soon as possible. 3 As soon as possible, have the cooling
system checked by a workshop. We rec-
ommend that you contact an authorized
Saab dealer.
Towing a trailer3Trailer hitch attachment3Trailer hitch attachments are available as
accessories. These are designed for a max-
imum trailer weight of 3500 lbs. (1588 kg),
see also page 259.
Use only the electrical trailer hitch socket
provided in the trailer hitch kit.3
Saab recommends:
Use a Saab original hitch kit attachment
which is designed and tested by Saab.
Consult your Saab dealer regarding the
appropriate hitch kit for your car.If the car has a 13-pin genuine Saab electri-
cal socket, the trailer/caravan can be equip-
ped with rear fog lamp and reversing lamps.
The caravan can also have interior and
exterior lighting when the car’s ignition is off.
Do not put a load on the battery for so
long that it becomes discharged and the
car cannot be started.
There is also access to power in the caravan
during a journey, the caravan battery can be
charged for example.

WARNING
Exercise care when opening the hood
if the engine is overheated. Never
remove the expansion tank cap com-
pletely when the engine is hot.
The cooling system is pressurized -
hot coolant and vapor can escape.
These can cause injury to your eyes
and burns. Open the cap slowly to
release the pressure before
removing it.
WARNING
When towing a trailer, do not attempt
to negotiate a hill having a gradient in
excess of 15 %. The weight distribu-
tion over the front wheels of the car will
be insufficient to prevent wheelspin,
making further progress impossible.
In addition, the parking brake may not
always be able to hold the car and
trailer securely, with the result that the
wheels can start to slide downhill.
Always apply the trailer’s parking-
brake when unhitching it. There is oth-
erwise a risk of personal injury or
damage to the bumper should the
trailer start to roll.
NOTICEOnly use a towbar that has been appro-
ved for your car. We recommend that you
entrust towbar installation to an authori-
zed Saab workshop, which can also pro-
vide important information such as trailer
weight. Your authorized 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 consult an
authorized Saab dealer for guidance on
how to connect the trailer hitch electrical
system.
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176 Starting and drivingWhen negotiating long hills, bear the follow-
ing important considerations in mind:
Use Normal mode when driving with a
caravan or trailer on hilly roads. The
adaptive gear change pattern function will
prevent the transmission overheating.
Rises in coolant temperature are indi-
cated by the temperature gauge in the
main instrument panel.Recommendations for cars with
automatic transmission
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 engine increases:
Gear change pattern is altered.
A/C compressor is switched off.
Engine torque is reduced.
The following message will be displayed on
the SID if the transmission fluid becomes
too hot:
“Gearbox too hot.
Make a safe stop.
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.When continuing your journey, select
manual mode and a gear in which the
engine speed is about 3,000 rpm until the
incline eases (see page 157).
WARNING
Remember to use the braking effect of the
engine (position D or L) when you are
descending long or steep hills to spare
the brakes.
Brake failure can result from overheated
brakes!
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177 Starting and driving
Recommendations for cars with manual
gearbox
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 engine increases:
A/C compressor is switched off.
engine torque is reduced.
When continuing your journey, select a gear
in which the engine speed is about
3,000 rpm until the incline eases.
Driving considerations Always take extra care when towing a
trailer, as the car’s handling will be different
and its braking effect reduced. The trailer’s
braking system and suspension also have a
considerable effect on these characteris-
tics, see also ”Driving with a load” page 181.
If the car has automatic transmission, select
position D when ascending steep hills. This
ensures that the adaptive gear change pat-
terns are operational, see page 158. Use
position D or L for steep descents.
Checks before drivingMake sure that the car and camper or trailer
are in good working order. This is essential
since towing a camper or trailer increases
the strain on the car.
Check and if necessary adjust the tire
pressure of the car and camper or trailer.
Make sure all wheel bolts are properly
tightened.
Make sure that the equipment joining the
car and camper or trailer is properly
secured and adjusted.
Make sure the camper or trailer’s electri-
cal cable is properly connected and is not
so long that it drags along the ground.
Also, make sure the cable is not too short
and risks breaking when turning a corner.
Check all bulbs.
Check the car and camper or trailer
brakes.
Make sure that all items on or in the cara-
van or trailer are properly secured.
Make sure that the camper or trailer’s
jockey wheel is raised and locked.
Check the distribution of the load so that
the car and camper or trailer are well bal-
anced.
Check that the rearview mirrors provide
the best possible rearward vision.
Make sure the camper or trailer’s safety
cable is correctly attached.
WARNING
Utilize the braking effect of the engine
(1st, 2nd or 3rd gear) when you are
descending long or steep hills to spare
the brakes.
Brake failure can result from overheated
brakes!
NOTICEIf the ”Automatic transmission3, fault
indicator” indicator comes on, cease
towing until the problem has been recti-
fied.
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189 Car care and technical information
IB3888
Hood ________________ 190
Engine compartment __ 191
Emission control
systems ____________ 192
Engine ______________ 194
Engine oil ____________ 194
Transmission fluid ____ 195
Coolant ______________ 195
Brake and clutch fluid__ 196
Power steering fluid ___ 198
Air filter _____________ 198
Battery ______________ 199
Drive belts ___________ 201
Wipers and washers ___ 202
Changing bulbs _______ 204
Fuses _______________ 216 Tires ________________ 222
Compact spare tire ____ 234
Safety belts __________ 239
Upholstery and trim ___ 240
Textile carpeting ______ 240
Washing the car ______ 241
Waxing and polishing __ 242
Engine compartment __ 242
Touching up the paint _ 242
Air conditioning (ACC) _ 243
Anti-corrosion treatment 245
For long trips _________ 246
Recovery and/or
recycling of automotive
materials ___________ 247
Headlight aiming ______ 247
Car care and technical information
3 Asterisk means: equipment not fitted in all cars
(can depend on model variant, engine variant,
market specification, options or accessories).95_U S _M 07.book Page 189 Friday, June 9, 2006 8:58 AM
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191 Car care and technical information
Engine compartment
9
6
8
1
2
4
3
5
7
IB3637
Engine compartment1 Engine-oil dipstick/filler cap
2 Reservoir, brake/clutch fluid
3 Fuse box
4 Expansion tank, coolant
5 Washer-fluid filler cap
6Battery
7 Turbo unit
8 Ignition discharge module
9 Reservoir, power-steering fluid
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193 Car care and technical information
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.
ORVR (Onboard Refueling Vapor
Recovery)Hydrocarbon vapors formed when refueling
will be recovered by the car and not
released into the atmosphere. The hydro-
carbons are absorbed in a evaporative
emission canister. When the engine is sub-
sequently started, the evaporative emission
canister is gradually purged as air is sucked
into it through a shut-off valve. The hydro-
carbon/air mixture passes through the evap
canister purge valve and into the engine
where it is burned.
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.
Refueling, see page 146.
NOTICEThe Trionic engine management system
continuously monitors the operation of
these systems and has 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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195 Car care and technical information
Transmission fluidManual transmission Check and top up the fluid in accordance
with the service program.Automatic transmissionCheck and top up the fluid in accordance
with the service program.
Coolant There is an overpressure in the cooling sys-
tem. Coolant temperatures can sometimes
exceed 212°F (100 °C).
The expansion tank is transparent to facili-
tate checking of the coolant level.
When the engine is cold, the coolant shall lie
on or just above the KALT/COLD mark on
the expansion tank.If the message
”Coolant level low.
Refill.”
is displayed on the SID, check the level of
fluid in the expansion tank.
Top up, as necessary, with equal parts of
clean water and Saab-approved coolant.
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.
If the expansion tank is empty when coolant
is added, run the engine to normal temper-
ature and top up again, as necessary.
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.
C oolant on hot surfaces constitutes a
fire risk.
IB1338
Coolant expansion tank
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196 Car care and technical informationThe cooling system is charged at the factory
with coolant containing a 45 % 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).
The coolant does not normally have to be
changed during the service life of the car.
The type of coolant used has a reddish color
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.
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.

Brake and clutch fluid Checking the fluid level The combined brake and clutch-fluid reser-
voir is transparent to facilitate checking of
the fluid level.
The level should be between the MAX and
MIN marks. Top up, as necessary, with
DOT 4 fluid. Do
not
use DOT 5 brake fluid.
NOTICEAlways 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
Brake fluid deteriorates as it becomes
old. Because it is hygroscopic, it absorbs
water from the air and, in time, could allow
vapor to form in the brake system, thus
reducing its performance. It is therefore
important that brake fluid be changed reg-
ularly, as specified in the service pro-
gram.
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