Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2000 Audi A6 owners, lightly cleaned up (personal details are redacted by NHTSA).
Hello! Today I was at the sams club gas station to fill up my vehicle, 2000 Audi A6 with the 4.2 engine. When I finished, I went over to the driver side, where ive seen a huge amount of gas on the ground. The fuel was leaking really bad from my car. The sam's club even called the fired department and the police there too. It leaked out a lot couple gallons from my vehicle. Thanks god the gas station had a small incline so I could notice it right before I would drive away. Just thinking that I would drive away and something serious would happen it scares me. As I understand a lot of audis are recalled because of this issue. Mine is not under the recall. What can I do to get mine under the recall too? Please help me. [redacted]
The first time this car had any problems with anything leaking was a couple days ago when we woke up in middle of the night to house and garage smelling like gas. On driver's side rear by passenger door there was a small leak looked like oil but smelled of gas and underneath car you can see wear a small crack is at in fuel system. I see many recalls for same thing for different years and complaints filed for this same problem and year. No recall notices was ever received by myself or previous two owners who was friends or it would have been fixed. I am upset because now it won't be fixed under recall because it's been so long however there was no close date on reports it shows several thousand cars never got the repair and was not notified. This is a huge safety issue that not only can start car on fire but house on fire if parked in garage. …
There was an overwhelming lecel of gasoline fumes inside the car. The problem: the fuel tank breather hose is connected to the fuel tank by a plastic connector. The plastic connector was broken. It is physically located where nothing can contact it. It just broke over time. It's clearly not a warranty issue (the car is out of warranty), but a safety issue. The connector can not be procured separately from the entire fuel tank. The cost to replace the fuel tank would be about $2,000. A repair (hopefully) was made by epoxying the connector, after dropping the fuel tank to reach it. A call to Audi to report the concern as a safety issue was not rewarding. …
There has been an Audi recall (opened 1/31/-8, closed 5/30/08) for Audi A6 models manufactured from June 2, 2001 to June 1, 2005. Your NHTSA action number is pe08008, recall campaign number is 08V157000. This involves very dangerous fuel tank cracks and leaks. The problem is, I have a 2000 Audi A6 with exactly the same problem, but no recall. It will cost me about $2,000 to repair, my mechanic says I'm lucky no explosion. If you will check the internet chat rooms, these problems are extensive back to 1998 models, involving plastic fuel tanks. Audi tells me 'not enough complaints' of my year model to warrant recall,even though the defect seems exactly the same thing as the defect causing the recall, and is a terribly dangerous situation for Audi drivers and their families. …
Strong fuel fumes are present inside the car's cabin while driving or stationary with the engine both on and off. Upon inspection by an automotive tech, fuel is dripping from the fuel tank area on the driver's side under the rear seats. Fuel will continue to drip out until the fuel tank is at about 1/2 full. The rear seat bench was removed to gain access to part of the fuel tank and there is visible wet spots from fuel spilling out the tank. The tech found a hose that connects to a plastic valve on the fuel tank. The plastic valve is cracked and is leaking fuel. There is a recall from the manufacturer to repair this problem for the vehicles made in 2001 and newer but not 2000. The 2000 A6 is identical to the 2001 A6, why isn't a 2000 covered in this recall? Please amend the recall to cover 2000 A6 cars.
After filling gas tank, gas began leaking as a steady stream from left front side of gas tank, near the rear driver's wheel well. Owner contacted Audi dealership and Audi of America. Owner paid for dealer inspection to diagnose leaking gas issue. Dealer stated the tank was leaking and needed to be replaced. Audi of America contacted owner on 3/20/2014 and stated the service manager of Audi of ann arbor, mi had decided they would not cover the repair due to vehicle "mileage and age." Audi of America stated since vehicle was outside of recall range (2001-2005 my), they would not assist with repairs. Independent owner research shows multiple leaking gas tank issues (broken rollover valve nipple) with this vehicle, and matching part numbers between 2001-2005 my gas tanks and 2000 my gas tank.
There is a recent recall for certain Audi models as referenced in NHTSA action number : pe08008. This begins with model year 2001 A6 Audi cars with the 2.7 engine. I own a 2000 model A6 2.7 and am having the same problem. There is a gasoline smell that just began and by inspection from underneath the car it appears that there is a slight leak (not dripping) from the top area of the tank as described in this recall. It seems like more than a coincidence that my car is also having a very rare slow gas leak but it was not included in the recall. The gas tank part number (as printed on the bottom of the tank) is 4b0 201 085. This is the same part number as used in the 2001 and 2002 models as referenced from a n online part search. Thank you for your assistance and further research.
Near total loss of power (intermittent) 17 error codes in OBD. New triptonic transmission 1 month after expiration of warentee. Extended warentee never offered by Audi. Error codes include throttle housing and cam error. I have spent nearly $7,000 in 10 monthes on mechanical repairs and mechanic says that I need approximatly $6,300 more. Audi said that I can have the dealer run a dignostic at my own expense. Addition to the $6,300 need. Check engine light has constantly come on since purchase. Dealer siad that he advises customer many times to disconnect light. Constant repairs since ownership. Audi is not helpfull.
Tl contact owns a 2000 Audi A6. The console has a center display that shows warning lights for gas, brakes, etc. The center display failed gradually approximately one year ago. The display has completely failed and when the vehicle is cold some of the lines in the display are visible. The dealer stated that the vehicle is no longer under warranty and they will not repair it. The current mileage was 76,000 and the failure mileage was 70,000. The consumer stated the gas gauge is not working and not moving when the vehicle is filled up with gas. Updated 11/07/07
Tl contact owns a 2000 Audi A6. He stated that the fuel tank breather hose connection failed, which caused the vehicle to smell of gasoline fumes. The mechanic stated that the connector was plastic and would eventually fail. The mechanic stated the only way the could be replaced was to replace the entire fuel tank. The contact had a patch put on the connection. The current mileage was 94,827 and the failure mileage was 93,700. The purchase date was unavailable. The consumer provided the repair invoice. Updated 09/05/07
Related recalls
Fuel system, gasoline › Storage › Tank assembly
Vehicle description: passenger vehicles. Sulfur in fuel interacts with certain additives found in widely available gasoline causing sulfur to become deposited on the contact points of three fuel sending units mounted inside the fuel tank.
Remedy: Dealers will remove the existing fuel level sending units and replace them with fuel level sending units using a new alloy composed of gold, silver, and a small amount of nickel, which will not chemically react with…
Fuel System complaints in other A6 years
Frequently asked questions
How common are fuel system problems on the 2000 Audi A6?
NHTSA has 23 complaints about the fuel & propulsion system of the 2000 Audi A6, 16% of the model year's 148 complaints. The component named most often is storage › tank assembly (7 mentions).
Is there a recall for 2000 Audi A6 fuel system problems?
Yes — NHTSA recall 01V-157 (tank assembly, May 3, 2001). Recall repairs are free at authorized dealers.
At what mileage do 2000 Audi A6 fuel system problems start?
Half of the complaints with a recorded mileage happened before about 115,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.