Two problems related to engine cooling system have been reported for the 2010 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Audi A4 based on all problems reported for the 2010 A4.
Damage to secondary radiator caused coolant leak. Secondary radiator is not sufficiently shielded or protected from debris. There was no visible debris on the road leading me to believe something as massless as a large bug could have caused the damage. Car was towed to dealer and repaired.
2010 Audi s4 new vehicle with 5,200 miles driving on interstate and passing a car when waterpump failed. Car was towed to dealership and repaired.