2003 Audi TT Roadster Quattro MK1 engine 147000 miles
I have researched everything I could think of, and done all of the basic diagnosiing that I could, replace the fan control module, lower temperature switch, upper temperature switch, checked all of the fuses. In the summer the smaller fan is supposed to come on , then your air conditioning compresor comes on. That does not happen. Ive spent quite about $400 on different diagnostic tests and still nothing.