SAAB WIS ONLINE

Thermostat, Z19

Thermostat, Z19

To remove


1. Remove the engine cover and insulation.

Warning

The cooling system is under pressure. Hot coolant and steam can escape.

- Open the cap slowly to release the pressure.

- Carelessness can cause eye and burn injuries



2. Remove the coolant reservoir cap.

3. Raise the car.

4. Remove the lower engine cover and front spoiler plate.


5. Drain the coolant and close the drain cock.

6. Lower the car to the floor.

7. Remove the battery.

8. Remove the nuts holding the coolant pipes to the back of the engine.


9. Remove the turbocharger delivery hose.

Important

Take care when releasing the locking mechanism on the connector so as not to damage the connector. Pull the halves straight apart to avoid bending the pins. For further information regarding connectors, refer to Connectors, handling and inspection .



10. Unplug the coolant temperature sensor connector (202).


11. Place a receptacle under the engine. Remove the nut holding the coolant pipe to the thermostat housing and press the pipe back while detaching the hose from the thermostat housing.

12. Detach the 3 hoses from the thermostat housing.

13. Remove the thermostat housing.



To fit


1. Clean the sealing surfaces.

2. Fit the thermostat housing using a new gasket.

Tightening torque: 25 Nm (18 lbf ft)


3. Attach the hoses to the thermostat housing.


4. Reposition the coolant pipe while attaching the hose to the thermostat housing. Fit the nut.

Important

Take care when plugging in the connector so as not to damage or press out the pins/sleeves in the connector. For further information regarding connectors, refer to Connectors, handling and inspection .


5. Plug in the coolant temperature sensor connector (202).

6. Attach the turbocharger delivery hose.


7. Fit the 2 nuts holding the coolant pipes to the back of the engine.


8. Fit the battery.

9. Raise the car.

10. Fit the lower engine cover and the front spoiler plate.


11. Lower the car.

12. Pressure test and fill with coolant. See Cooling system, pressure testing .

13. Fit the insulation and engine cover.

14. Carry out Procedure after battery disconnection .