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Fuel systemPart report

2003 Audi RS6 Fuel system Problems

Complaints
7about this part
Share
16%of 43 total for the year
Median mileage
65,870miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the fuel system of the 2003 Audi RS6, 16% of the 43 complaints for this model year. Where a mileage was given, the median is 65,870 miles. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Fuel tank leak from tip over valve. There is a recall on it. Audi recall 20l8/jy was performed on 5/16/2012. But the valve started leaking again recently. I called Audi of america (aoa) they had me take the car to austin north Audi dealer for confirmation and taking photos. After the dealer confirmation they denied my request to cover the fuel tank replacement. Their reason was: car is too old, I am second owner, and there is no brand loyalty (this is my first Audi). …”

NHTSA complaint #11056824, filed 2017-12, 59,000 miles

“Fuel tank leak- the plastic roll over valve of the fuel tank cracks and leaks fuel. I am now on my 4th gas tank since I have owned the car new in jan/04. The gas tank was replaced as recommended on each incident. The repair is a significant repair job due to the location of the fuel tank. My first repair was at 47k miles, second repair at 87k miles, and most recent at 132k miles.”

NHTSA complaint #10360285, filed 2010-10, 132,000 miles

“2003 Audi RS6 (a6 4.2 v8 biturbo) fuel tank defect: this complaint is in regard to my 2003 Audi RS6 sedan. After noticing a strong smell of fuel and fuel vapor in my garage the morning after filling up said car, I immediately took my vehicle to my local Audi dealer to have the car inspected and determine the cause of the problem. I have been notified that the car's fuel tank is broken at the top where the roll over valve is bonded to the tank. It seems to me that a 7 year old vehicle should not have such a potentially hazardous problem such as a leaking fuel tank. …”

NHTSA complaint #10363614, filed 2010-11, 65,870 miles

“I would smell fuel whenever filled tank above 3/4th's. Had personal mechanic check it out, determined it was the roll over valve on the fuel tank. Called Audi of america, which stated vehicle was still covered under cpo warranty. Brought to Audi dealer who replaced the fuel tank and related parts.”

NHTSA complaint #10359605, filed 2010-10, 43,093 miles

“The contact owns a 2003 Audi RS6. The contact stated that after adding fuel to the vehicle, he noticed that fuel had leaked, and there was a puddle of fuel on the ground on the rear driver's side of the vehicle. There was no warning light illuminated. The contact stated that the failure reoccurred routinely when adding fuel in the vehicle. The dealer was notified of the failure. The vehicle was not diagnosed nor repaired. The contact related the failure to NHTSA Campaign Number: 11V267000 (Fuel System, Other) however, the VIN was not included. …”

NHTSA complaint #11534403, filed 2023-07, 139,000 miles

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2003716%

Other parts of the 2003 Audi RS6

Suspension
31 complaints
Transmission and drivetrain
3 complaints
Electrical system
1 complaints
Electronic stability control
1 complaints
Tires
1 complaints

← All problems reported for the 2003 Audi RS6

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology