Having problems with your 2004 Audi A4 ?

Audi A3 2002 model auto - temperature gauge not working

\015 Hi all,\015\012 just bought an audi a3 2002 model and the temperature gauge is not working, any ideas on how to troubleshoot this ??\015\012\015\012thanks in advance.\015 Posted / edited by AnonymousUser on : 20-05-2019

Answers :

How do I locate the sensor on a 2003 A4 1.8L? I see a blue sensor on the right by the firewall, and a green sensor on the left nearer to the battery on the left. Is it possible that I already have a green sensor in my car?
Change the coolant temperature sensor. They're known problem areas on other Audi models, including my A4. The part runs about $20 from www.ecstuning.com and it's the problem probably 75% of the time. If that's not a fix, it could be a thermostat that is stuck open and causing the gauge to never read warm.
Repair Help & Product Troubleshooting for 2004 Audi A4

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