The thermostat in a 1987 Audi 80 is located in the coolant outlet housing on the front of the engine. To access the thermostat, you will need to remove the upper radiator hose and the coolant outlet housing. The thermostat is located inside the coolant outlet housing and can be removed by unscrewing the two bolts that hold it in place.
Here is a more detailed step-by-step guide:
1. Park your car in a safe location and turn off the engine.
Allow the engine to cool down completely to avoid the risk of burns.
2. Open the hood of your car.
Locate the hood release lever inside the car, usually near the driver's footwell. Pull the lever to release the hood and lift it to open it.
3. Locate the coolant outlet housing.
The coolant outlet housing is a metal component located on the front of the engine. It is usually connected to the upper radiator hose.
4. Remove the upper radiator hose.
Use a wrench to loosen the clamp that secures the upper radiator hose to the coolant outlet housing. Pull the hose off the housing.
5. Remove the coolant outlet housing bolts.
There are two bolts that hold the coolant outlet housing in place. Use a wrench to loosen these bolts and remove them.
6. Remove the coolant outlet housing.
Once the bolts are removed, you can carefully lift off the coolant outlet housing. Be careful not to spill any coolant that may be inside.
7. Locate the thermostat.
The thermostat is located inside the coolant outlet housing. It is usually a round, metal component with a spring-loaded valve.
8. Remove the thermostat.
Use a wrench to unscrew the two bolts that hold the thermostat in place. Lift the thermostat out of the housing.
9. Inspect the thermostat.
Check the thermostat for any signs of damage or corrosion. If the thermostat is damaged, replace it with a new one.
10. Reassemble the components.
Replace the thermostat, coolant outlet housing, upper radiator hose, and bolts in the reverse order of removal. Make sure to tighten all bolts securely.
11. Fill the coolant system.
Open the coolant reservoir and fill it with the appropriate amount and type of coolant. Refer to your vehicle's owner's manual for specific instructions.
12. Start the engine and let it run for a few minutes.
This will circulate the coolant through the system and check for any leaks. If you notice any leaks, tighten the connections or replace any faulty components.
