My audi A4 1.8T (2005) overheats in the mornings when I switch on the heater? on 2006 Audi A4

I tried the same thing of switching the heater on in the afternoon and nothing happened. I don't know if it was just a coincidence.

by in Garnet Valley, PA on June 27, 2013
2 answers
ANSWER by on June 28, 2013
Must be the gauge circuit or another problem, heater is not actually the trouble. Have coolant level checked.
ANSWER by on June 28, 2013
poss water pump impellar rotting away,very common

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