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.

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.

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

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Off and on for a few months now, the car starts sometimes (with or without),check engine light. Told possible bad computer. Is there any other way to diagnose and ball park costs? I've read about changing spark plugs and coil, with that work?

Without the air sensor the car works perfectly fine although a lot more air is heard from the engine, however when I plug it back in the car suddenly drops in rpm until it finally turns off.

My alarm decides to go off unexpectedly, my door locks don't trigger a locking chime, the windows won't roll down, the dome light doesn't go on when I open the door, the trunk won't open (using fob, trunk latch or button on inside driver's side door) and my gas lid won't o...

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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...ON CERTAIN VEHICLES PRODUCED FROM SEPTEMBER 2002 - MARCH 2003, 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.

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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!!!!!!!!!!!!!!

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