Audi A6 Quattro Repair and Maintenance

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

Select your Audi A6 Quattro's year to get more detailed information
Select your Audi A6 Quattro's year to get more detailed information:

Audi A6 Quattro Problems

Overheating Due to Failing Thermostat

The thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.

Flasher Relay Failure Can Cause Erratic Turn Signal Operation

Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.

Check Engine Light Due to Vacuum Leaks, Oxygen Sensor, or Catalytic Converter Fault

Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.

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Audi A6 Quattro Questions

My 01 Audi A6 quarto won't turn over or crank so it won't start flashlights work (1 answer)

I was driving my 2001 Audi A6 quarto will not start it won't crank or turn over no noise at all but all the dash lights work as normal it all happened when I was driving and I put it in neutral and turned the engine off while still in moving when I tried to start it back up it did nothing I t...

Why aren't any of the gauges on my dashboard working? (1 answer)

While we were driving down the road, every single gauge/dashboard lighta just shut down like the car was switched off.

do i need to drop the exaust in order too pull the auto trans (1 answer)

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Audi A6 Quattro Reviews

For a year I took my a6 4.2 to the dealer several times because a low coolant light continued to come on. I eventually gave up on y40 mile round trip to Annapolis to DC for this problem. I just kept g12 coolant in the trunk. It eventually was fixed by a service shop that I took it to for oil leaks. Now I have another oil leak. But it only leaks when its parked over night. Another dealer s...
Some plastic fittings on the front passenger seat have failed. Several painted surfaces on the headlight switch, mirror switch and heating and A/C controls have worn off. The radio on/off button has come off. The front suspension needs relatively frequent repairs. The roads are terrible around here. Water pump and oil cooler replace at different times. The latter repair VERY expensive.
This is an Exciting lovely roomy car, and good mpg.on a drive 42 mpg, according to the in car computer. I need to buy a additional ignition key, and the Audi dealer wasn't £240.00. I hpope there is another way.

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