My check engine light is on and weak heat output. Code is a PO3081.
Had a repair shop replace coolant plug near Tstat housing since it was leaking. While they were there the Tstat and new updated housing w/sensor was replaced. NO coolant leaks now , a test drive and the check engine light is back on with same code and heat is better but still not warm at idle.
The tech said there is TSB on that same issue that I have for my car with poor heater output. Any Help would be appreciated from someone with more Audi Technical experience.