2007 Audi A4 Quattro Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2007 Audi A4 Quattro

No_car_image
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
Get a Repair Estimate For Your 2007 Audi A4 Quattro
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more

2007 Audi A4 Quattro Problems

Decreased Power and Fuel Economy from Carbon Buildup

The 2006-2016 Audi A4 Quattro uses FSI and TFSI direct injection engines. These 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, since the A4 Quattro uses direct injection, gasoline does not flow through common carbon buildup areas. 

Possible trouble codes include: P0300P0301P0302P0303P0304, P0305, P0306.

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.

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 illuminatesT
  • 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. 

Loss of Power Due to Torn Rubber Valve

A turbocharged engine looses power if the turbocharging system has a leak (boost leak). The most common turbo boost leak for the A4 Quattro 2.0 FSI is a torn rubber diaphragm on the diverter valve, which is intended to open only if pressure gets too high. Common symptoms are increased turbo noise when letting off of the gas pedal, and power loss.

If there is a turbocharging system leak, the system will need to be inspected, and the defective seals and/or valve will require replacement. 

See More Problems (12)

2007 Audi A4 Quattro Questions

P0171 Crankcase vent valve problem help ASAP (1 answer)

Replaced the crankcase vent valve with OEM parts and light still hasnt turned off. I need help ASAP ive lost a lot of MPG and a lot of power!!!

The wipers start and stop at random and the hazard lights won't turn off. (1 answer)

We have tried to replace the comfort module but it did not help. When I put the wiper fuse in they start and won't stop.

My car lost power today and the engine light came on. (1 answer)

It would lose power only now and then and specially I when I step a bit more on the gas. And the engine light comes on and flashes for 4-5 times and goes away. What does this mean and am I able to fix it myself?

See More Questions (22)

2007 Audi A4 Quattro Reviews

Rated
based on 1 customer reviews
Overall a good car. Bit pricey with all the whistles and bells but I do enjoy them all. Highlights are the adaptive HID headlights. They turn and point when you turn the steering wheel. Quattro makes the car drive like it is on rails in all weather conditions but it does require the pricey high performance tires. They removed the seat memory and made it an option. Should be included in the...

See More Reviews (1)