We don't have a lot of Audi A4 cooling system problems on file — feel free to add yours here. The most common A4 cooling system problems cost $300 to fix & occur at 81,000 miles. Click on a year below.

Worst Cooling System Problems
thermostat failed 2009 Audi A4
temp gauge moving to cold 1997 Audi A4
coolant leak 2004 Audi A4