Audi A4 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Audi A4

An ignition coil or spark plug may fail unexpectedly resulting in an engine misfire and possible illumination of the Check Engine Light. Vehicles equipped with spark plug wires may also develop a misfire caused by a failed spark plug wire.

Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.

Clogged drains can allow rainwater to accumulate in the plenum tray (at the base of the windshield). The water may leak into the vehicle's interior, brake booster, or electrical components, which can lead to major problems. Our technicians recommend keeping the tray clear of leaves, pine needles, and other debris.

See More Problems 23

Hi i change the coils and sparkplugs on my audi and cilinder 4 said i have misfire and we reset the car for few days is fine and the check engine light turns on

I had #1 and #3 ignition coils changed 3 months ago and I noticed the same misfire symptom today when accelerating. I also noticed a minor shake when driving, but nothing like 3 months ago when the first 2 went out. The engine light didn't come on nor did the car start shaking violently like ...

See More Questions 190

In a crash where the first impact deploys the side air bags and a second impact occurs in the front of the vehicle, the front air bags may not deploy. Dealers will update the air bag control unit software free of charge to correct the concern.

ON CERTAIN VEHICLES EQUIPPED WITH 1.8L TURBO, 2.8L V6, OR 3.0L ENGINES, A CHANGE IN THE ELECTRICAL MOTOR COMPONENTS IN THE FUEL PUMP CAN LEAD TO AN INOPERATIVE FUEL PUMP AND, ULTIMATELY, STOPPAGE OF FUEL SUPPLY TO THE ENGINE CAUSING IT TO STALL.ON CERTAIN PASSENGER VEHICLES, AS A RESULT OF A PROBLEM IN THE PRODUCTION PROCESS OF THE IGNITION SWITCH, THE ANCHOR POINT OF THE SPRING MAY CRACK. THIS COULD POTENTIALLY CAUSE THE RETURN SPRING FORCE TO BE INSUFFICIENT FOR RETURNING THE IGNITION KEY TO THE RUNNING POSITION AFTER STARTING THE EN...

See More Recalls 13

just got this car approximately 3 months ago. apparently the TCM is bad. the transmission is very weak and driving at 30 mph the damn car is already on 6th gear. very weak on take off ynless i hit the gas pedle all the way. and even then the transmission is confused. durinig automatic down shift the car transmission kinda bumbs as it goes into first gear. sounds like the TCM (transmission contr...

i bought my A4 less then 2 years ago and haven't had to many problems - except a new timing belt at 60,000 a new coolent system and sensors - water tank - and fuel pump - also had some electrical problems a random wire was running from a 10amp fuse to a 15amp fuse - really???? It accelerates on its on.. and it is very exspensive to fix.. i love the car - but will probably never buy one again..

catalytic converter nightmares!!!!!!!!!!!!!!

See More Reviews 20