2010 Audi A6 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2010 Audi A6

2010 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. 

Decreased Power and Fuel Economy from Carbon Buildup

The 2006-2016 Audi A6 2.0TFSI, 3.0TFSI, 3.2FSI and 4.2FSI direct injection engines are subject to carbon buildup in the intake system which can cause power loss, OBD codes and a check engine light, and a rough idle. In normal engines, the engine is cleaned by the gasoline flowing through the injectors and into the intake system, however, the A6 uses direct injection so gasoline does not flow through common carbon buildup areas. 

Possible trouble codes include: P0300P0301P0302P0303P0304, P0305, P0306, P0307, P0308

The solution is to remove the intake manifold and professionally clean the intake manifold, intake ports on the cylinder head, and the intake valves. This may need to be done in as few as 20,000 miles. 

Check Engine Light Due to Faulty Torque Converter

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

See More Problems (6)

2010 Audi A6 Recalls

Passenger Frontal Air Bag Inflator Ruptures On Deployment

The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.

See More Recalls (1)

2010 Audi A6 Reviews

Rated
based on 2 customer reviews
This has by far been the best car I have ever owned. It is extremely smooth to drive and hardly makes any noise even at highway speeds. Not only this, but the A6 has been a very reliable car. It is now 4 years old but it still runs and looks like new. So far. the only issue was I needed to have a bulb replaced in one of my daytime running lights. It ended up only costing $35 and took 30 minutes...
I leased this car brand new at the end of January 2010. I immediatley started having problems. The 2nd day I had the car, the driver's side door would not close. The latch was not working. I had it towed to the dealership and they fixed it in about an hour. A month after I got it, the radio/computer system died. They had my car for a week and gave me a Nissan Altima to drive in the mean t...

See More Reviews (2)