Having problems with your 1993 Audi 80 ?

Hello, I have a 1995 Audi 80 V6 that keeps overheating. As a cheap temporary solution my mechanic bypassed the aircon which seemed to work at the beginning but the problem has returned. There seems to be an issue with the car registering the fact that it needs cooling, as the temperature gauge doesn't work most of the time. Occasionally it shows a temp but most of the time it doesn't. I was told it could be my temp sender or sensor? Any help? Could I fix it myself and if so how? Thank you!

Posted / edited by AnonymousUser on : 18-01-2021

Answers :

Low engine coolant can keep temperature sensors from working correctly. Air or combution gasses being forced into the cooling system from a blown head gasket or cracked head can cause the same symptoms.

If you want to know if the temperature sensor is working, you must first be certain that the rest of the cooling system is working and only then can you determine if the sensor is "lying" to you. The actual engine temperature should be checked with an infrared thermometer and compared to the temperature sensor data in the onboard computer.

There is a coolant temperature sensor for the computer and there is a separate coolant temperature sending unit for the gauge. Comparing the two and verifying with an infrared thermometer is the best way to figure out what is going on.
Repair Help & Product Troubleshooting for 1993 Audi 80

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