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 $1,000 to fix & occur at 73,000 miles. Click on a year below.

Worst Cooling System Problems
the thermostat housing and water pump leaking 2017 Audi A4
coolant crystals broke off causing clogs through system 2013 Audi A4
thermostat failed 2009 Audi A4