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2004 Audi A6 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Audi A6

2004 Audi A6 Problems

The digital display portion of the instrument cluster may fail. Our technicians tell us the entire instrument cluster will need to be replaced to correct this concern.

A problem with the torque converter can cause the Check Engine Light to illuminate.

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.

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2004 Audi A6 Questions

I need to know if there is another way to change the fuel pump with out dropping the tank. It seems like alot of work just to drop the tank. Im hoping someone has figured out an easier way than having to take the car completely apart just to drop the tank.

everytime i slow down or apply brakes to stop my vehicle the rpm dies down abruptly when it reaches 1000rpm and then goes back up and idle normally at 800rpm.....changed plugs.....throttle body....mass flow sensor.....vacuum line..........everything possible and still getting that problem...........

The instrument panel shows the door is open when it is closed intermittantly. Where is this switch?

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2004 Audi A6 Recalls

The aging of the plastic material in the fuel tank rollover valve, combined with stress from the aluminum ventilation line attached to it, may lead to cracking of the connection nipple. The cracked nipple could leak fuel, increasing the risk of a fire. Dealers will reinforce the nipple on the rollover valve or repair the cracking as necessary. This recall is expected to begin during June 2011. The Audi recall number is 20L8/JY.

ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH HALOGEN LOW BEAM HEADLIGHTS, CERTAIN CONNECTOR PINS IN THE HEADLIGHT SWITCH CONNECTOR COME INTO CONTACT WITH EACH OTHER CAUSING A SHORT CIRCUIT. NOTE: VEHICLES WITH XENON LOW BEAM HEADLIGHTS ARE NOT AFFECTED BECAUSE THE CIRCUIT IN THESE VEHICLES CONT...ON CERTAIN PASSENGER VEHICLES, IF A DRIVER'S KNEES PUSH AGAINST THE KNEE BOLSTER (CRASH ELEMENT) LOCATED UNDER THE DASHBOARD, IT CAN CONTACT THE HEADLIGHT SWITCH WIRING HARNESS, AND AN ELECTRICAL SHORT COULD OCCUR.

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