2001 Audi A6 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2001 Audi A6

No_car_image
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
Get a Repair Estimate For Your 2001 Audi A6
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more

2001 Audi A6 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. 

Check Engine Light Due to Faulty Torque Converter

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

Engine Oil Leaks

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

See More Problems (11)

2001 Audi A6 Questions

o2 sensor faults (1 answer)

had converts 2 ea. replaced all 4 o2 sensors replaced w/Audi ones 3 times still have o2 sensor faults that , saying too high resistance and short to b+ never changed . the Audi garage can't figure it out so can anyone help thanks mike

Will a oil change stop a leak (1 answer)

Oil leaking at the bottom

how much would it cost to remove the old engine and replace it with another engi (1 answer)

engine may have seized up

See More Questions (11)

2001 Audi A6 Recalls

Potential Fuel Leak From Crack at Rollover Valve

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.

Recall 06V198000
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...
Recall 04V133000
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.

See More Recalls (7)