Replacing the thermostat of the cooling system

Thermostat

Withdrawal

1. Loosen the thermostat spring clip with a screwdriver and remove the thermostat together with the O-ring.

2. Disconnect ground wire from battery.

3. Drain the cooling system.

4. Disconnect the elastic pipes of the cooling system from the thermostat housing.

5. Remove the thermostat housing by unscrewing the two screws securing it.

Installation

1. Clean the connection surfaces of the thermostat housing and the engine cylinder head.

2. Insert thermostat into housing, new O-ring and spring clip.

3. Install the thermostat housing with a new gasket in the engine cylinder head, tightening the mounting bolts to the appropriate torque.

4. Connect the elastic pipes of the cooling system to the thermostat housing.

5. Fill the system with coolant.

6. Connect ground wire to battery.

7. Start and warm up the engine, and check the tightness of the cooling system connections.

8. After the engine has cooled down, check and, if necessary, top up the coolant level in the expansion tank.