2009 Audi A4 Quattro Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Audi A4 Quattro
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
2009 Audi A4 Quattro ProblemsCheck Engine Light Due to Vacuum Leaks, Oxygen Sensor, or Catalytic Converter Fault
Premature wear in various multi-link suspension components can cause noises that are difficult to diagnose. Worn suspension parts can also cause uneven tire wear and create steering alignment problems.
A fluid leak may develop from the propeller shaft seal on the rear of the transmission. Our technicians tell us that replacing the seal will commonly correct this concern.
2009 Audi A4 Quattro Questions$228 for diagnostics Per complaint?? This is crazy right ? (3 answers)
My car is at Audi now , I've never used this dealer. I got complete inspection and diagnostics for $100 at the other Audi dealer a hour away. This one quotes me $228 for each complaint they check. $228 yo check the creaking sound in front. $228 to check why it's overheating. $228 to...
Began suddenly after getting on highway. Then continued on the drive home with acceleration. I've read it could be the speed sensor. If so how much might this cost to fix?
I am replacing brake pads and rotors. Thought the pads came with the sensor(s) and need to know if I should order one sensor or two.
2009 Audi A4 Quattro RecallsAir Bag Control Unit Fails
The air bag control unit may corrode and fail. Dealers will replace the air bag control unit free of charge to resolve the concern.