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COOLANT, REPLACEMENT

COOLANT, REPLACEMENT

REPLACEMENT OF COOLANT

Warning

The radiator is of the pressurized type. Do not attempt to open the radiator cap immediately after the engine has been stopped.


Lift-up the vehicle.

Remove the under cover.

Place a container under drain pipe.

Loosen and remove the drain cock to drain engine coolant into container.


For quick draining, open the radiator cap.

Note
• In the case of Saab 9-2X 2.0T Aero, be sure to open the radiator cap of filler tank side.

• Be careful not to spill coolant on the floor.


Drain the coolant from reservoir tank.

Tighten the radiator drain cock securely after draining coolant.

Pour cooling system conditioner through the filler neck.

Slowly pour the coolant into radiator. Pour the coolant up to air bleeder hole, and then install the cap. (Saab 9-2X 2.0T Aero)

Pour the coolant from radiator filler port to neck of filler, then pour into reservoir tank up to “FULL” level.

Coolant capacity (fill up to “FULL” level):

Saab 9-2X 2.0T Aero AT model:

Approx. 7.6 litres (8.0 US qt, 6.7 Imp qt)

Saab 9-2X 2.0T Aero MT model:

Approx. 7.7 litres (8.1 US qt, 6.8 Imp qt)

AT model:

Approx. 6.9 litres (7.3 US qt, 6.1 Imp qt)

MT model:

Approx. 7.0 litres (7.4 US qt, 6.2 Imp qt)

Note

The Genuine Coolant containing anti-freeze and anti-rust agents is especially made for engine, which has an aluminum crankcase. Always use Genuine Coolant, since other coolant may cause corrosion.


Securely install the radiator cap.

Run the engine for more than 5 minutes at 2,000 to 3,000 rpm. (Run the engine until radiator becomes hot in order to purge the air trapped in cooling system.)

Stop the engine and wait until coolant temperature lowers. Then open the radiator cap to check coolant level and add coolant up to radiator filler neck. Next, add coolant into reservoir tank up to “FULL” level.

After adding coolant, securely install the radiator and reservoir tank caps.

RERATIONSHIP OF COOLANT CONCENTRATION AND FREEZING TEMPERATURE

Concentration and safe operating temperature of the coolant is shown in the diagram. Measuring the temperature and specific gravity of the coolant will provide this information.

[Example]

If the coolant temperature is 25°C (77°F) and its specific gravity is 1.054 and the concentration is 45% (point A), the safe operating temperature is −14°C (7°F) (point B), and the freezing temperature is −20°C (−4°F) (point C).


PROCEDURE TO ADJUST THE CONCENTRATION OF THE COOLANT

To adjust the concentration of the coolant according to temperature, find the proper fluid concentration in the above diagram and replace the necessary amount of coolant with an undiluted solution of genuine coolant (concentration 50%).

The amount of coolant that should be replaced can be determined using the diagram.

[Example]

Assume that the coolant concentration must be increased from 25% to 40%. Find point A, where the 25% line of coolant concentration intersects with the 40% curve of the necessary coolant concentration, and read the scale on the vertical axis of the graph at height A. The quantity of coolant to be drained is 2.1 litres (2.2 US qt, 1.8 Imp qt). Drain 2.1 litres (2.2 US qt, 1.8 Imp qt) of coolant from the cooling system and add 2.1 litres (2.2 US qt, 1.8 Imp qt) of the undiluted solution of coolant.

If a coolant concentration of 50% is needed, drain all the coolant and refill with the undiluted solution only.