2000 Audi A6 Quattro Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2000 Audi A6 Quattro

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2000 Audi A6 Quattro Problems

No Start after Refueling and Popping Noise from Trunk

Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and releasing to retest the system when it finds a fault. The sequence of faults identifying this issue are as follows:

  • Succession of loud pops from rear of vehicle
  • Pops go away, and fuel economy decreases 
  • Check engine light illuminates
  • OBD trouble code P2404 and/or P0441 is stored
  • Engine will not start after refueling (must crank for over 30 seconds)
  • Vibration when slowing to a stop

The cause is a valve which is mounted on the front of the intake manifold, commonly called the N80 valve, or EVAP system purge valve. The valve is designed to open under specific circumstances, but a worn valve will remain open at all times, preventing the pressurization of the fuel tank. 

Correction of the issue is to replace the N80 valve with the latest revision. 

ABS Light Due to Control Module Failure

The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.

Digital Display on Instrument Cluster May Fail

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.

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2000 Audi A6 Quattro Questions

Has anyone had a problem with right front wheel locking up? (1 answer)

The front right hand wheel completely locks up once I apply the brake. It would occasionally lock up if I applied the brake suddenly and hard. Eventually real easing itself. Now however it just locks up, this has me baffled. Any suggestions please.

Ok i jump started a car that had a shorte in it some were. (1 answer)

So as soon as i hooked up the last jumper cable ,somthing in my engine compartment poped quit loud. Like a cap gun sound. Now it will only start once out of 15 tries. And once it does start it will die after 15 -25 secounds of running.just like i shut it off. Whut is wrong? Thanks.

Ac wk far a few minutes then it starts blows hot (2 answers)

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2000 Audi A6 Quattro Reviews

Rated
based on 2 customer reviews
my audi starts and drives great till the temperture reaches hqalf way on gauge then it cuts off when i stop although it starts right back up
Except for some minor repair problems which are associated with normal wear and tear of usage, this is a fine automobilr. We love it and are happy that we purchased it in 2007.

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