Examination
1. To check, it is necessary to remove the switch, immerse it in a heated vessel with water and determine the contact closure temperature.
2. Before closing the contacts, the resistance of the switch must be infinitely large.
Removing
1. Disconnect the battery from the ground.
2. On a cold engine, drain some of the fluid to the level of the thermal switch.
3. Disconnect the thermal switch connector.
4. Carefully unscrew the thermal switch, remove the seal (if provided).
Installation
1. Clean the thermal switch and apply sealant to the threads.
2. Replace seal (if provided).
3. Further assembly is carried out in the reverse order.
4. Start the engine and check the switch operation.