The temperature gage in my audi just recently started blinking a whole bunch and my heat doesn't work.. at all. Normally, when this light goes on, I'm due for an oil change but I'm not sure if the heat not working and oil change connect. Do I just need an oil change? Or is this a completely other problem? Thank you!
I had that same problem on a 1990 audi 90.
Turns out the radiator was leaking, so the coolant kept running out causing the temp light to go on. as a temporary fix, you can keep topping up the coolant, but otherwise you are going to need to get that radiator fixed. by the way, audi 90s have TWO radiators; in my case it was the smaller radiator that had gone.
new radiator later, and it was fixed. unfortunatley, my temp gauge has never work...
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