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2003 Audi A6 fuel system problems

21 complaints (32% of all complaints for this car). Typical mileage when it fails: 84,600.

owner complaints
21
of this car's complaints
32%
typical mileage
84,600
crashes
0
recalls
4

Which part fails

  • Delivery: fuel pump
    4
  • Storage: tank assembly
    3
  • Storage
    1
  • Delivery
    1

At what mileage

Complaints by mileage at the time of the problem.

0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+

Audi A6 fuel system problems in other years

19972000201520202026

Specific symptoms reported on the 2003 Audi A6 fuel system

Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.

Fuel leak 6Fuel pump 6

Related recalls

Fuel system, other: storage: tank assemblyReported May 3, 2011 · 5,992 vehicles affected
What is wrong
Volkswagen is recalling certain model year 2001-2004 audi a6, model year 2002-2003 s6 and model year 2003 rs6 vehicles equipped with 4.2l engines and manufactured from june 19, 2001, through june 8, 2004. The aging of the plastic material in the fuel tank rollover valve combined with bending stress from the aluminum ventilation line to the rollover valve nipple may lead to cracking of the nipple. If this happens, a fuel leak may result.
Risk
A fuel leak in the presence of an ignition source could lead to a vehicle fire.
Remedy
Dealers will reinforce the nipple on the rollover valve to prevent leakage or repair the cracking at the nipple. The recall is expected to begin during june 2011. Owners may contact audi at 1‑800‑822‑2834.

Recall number 11V267000 · Recall details

Fuel system, gasoline: storage: tank assemblyReported April 8, 2008 · 68,240 vehicles affected
What is wrong
Volkswagen is recalling 68,240 my 2001-2004 audi a6 quattro vehicles equipped with 2.7l, 2.8l, or 3.0l engines and my 2001-2005 allroad quattro vehicles equipped with 2.7l or 4.2l engines. The aging of the plastic material in the fuel tank rollover valve combined with bending stress from the aluminum ventilation line to the rollover valve nipple may lead to cracking of the nipple. If this happens, a fuel leak may result.
Risk
A fuel leak in the presence of an ignition source could lead to a vehicle fire.
Remedy
Dealers will reinforce the nipple on the rollover valve to prevent leakage or repair the cracking at the nipple. The recall began on june 27, 2008. Owners may contact audi at 1‑800‑822‑2834.

Recall number 08V157000 · Recall details

Fuel system, gasoline: delivery: fuel pumpReported August 28, 2007 · 34,358 vehicles affected
What is wrong
On certain vehicles equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.
Risk
If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.
Remedy
Dealers will install new fuel pumps free of charge. The recall began on september 28, 20007. Owners may contact vw at 1‑800‑222‑8987 or audi at 1‑800‑822‑2834. This recall is a supplement to a previous campaign (please see 06v017).

Recall number 07V375000 · Recall details

Fuel system, gasoline: delivery: fuel pumpReported January 23, 2006 · 74,000 vehicles affected
What is wrong
On certain vehicles produced from september 2002 - march 2003, equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.
Risk
If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.
Remedy
Dealers will install new fuel pumps free of charge. The recall began on april 10, 2006. Owners may contact vw at 1‑800‑222‑8987 or audi at 1‑800‑822‑2834.

Recall number 06V017000 · Recall details

Related investigations

Fuel tank leakOpened January 31, 2008, closed May 30, 2008

Volkswagen (vw) is recalling certain vw passat 4motion and audi a6 quattro and allroad quattro all-wheel drive passenger cars.vw vehicles subject to recall were manufactured from november 22, 2000 through may 31, 2005 and audi vehicles subject to recall were manufactured from june 2, 2001 to june 1, 2005.the federal safety agency recall number for the vw vehicles is 08v‑156 (vw also is correcting defects related to heat shield and fuel line hazards for these vehicles and for 1999-2000 passats in this recall action.)the federal safety agency recall number for the audi vehicles is 08v‑157.since 2006, odi has received 17 complaints of fuel leaking from the subject vehicles' fuel tanks.the 400 complaints shown above may include duplicate reports to odi and the manufacturer. While the consequence (fuel leaks from the top of the tank) is similar for both the passat and audi subject vehicles, differences in design and construction require a different remedy for each vehicle.on the passats, the ventilation line could have been installed improperly with tension and with an incorrectly positioned cable tie.the tension could cause cracked or broken nipples on the fuel tank rollover valve.on the audi vehicles, a material change (effective june 2, 2001) with different aging characteristics used for the rollover valve and the use of an inflexible aluminum ventilation line could cause cracking of the nipple on the rollover valve.vw is recalling all vehicles subject to these defects.it will inspect passats to ensure that the vent line is tension free and correct the installation if tension is found.if a crack or fuel leak is found, vw will replace the fuel tank.audi will repair all subject vehicles by reinforcing the fuel tank rollover valve with an epoxy adhesive.this investigation is closed.

PE08008

What 2003 Audi A6 owners say

Most recent owner complaints, unedited.

Filed Mar 31, 2021 · Fuel system · 150,000 miles · OH

The gas tank or components of the tank are leaking gas when more than a small amount of gas is put into the tank. Gas leaks all over the ground from the tank and the cabin fills with gas fumes. My 18 son has been driving this car and I will not allow him or anyone else to drive the car now. After reading online that many people have this same problem, I am shocked that this is not a recall when it could be potentially life threatening and that audi wants to charge 3k to lower the tank and repair.

Filed Jul 11, 2017 · Fuel system · 108,789 miles · NC

Check engine light on, vehicle will not pass emissions testing. Audi determined that it was due to a fuel leak from a crack in the passenger side rear rollover valve. Vehicle had been recalled in past for similar issue (performed). Tank has 4 rollover valves, only one (front driver) included in prior recall. Initial quoted $3,300 to replace tank. Audi offered to pay for replacement tank with the exception of ~$600 (repair order attached). Repair completed on 2/23/2017, car passes state inspection. As you can see by the "staining" in the attached photo, the leak was significant dealer then calls to say that car needs to be returned to perform prior recall on the newly installed tank. Recall to be performed on only the one rollover valve (driver front) that can be accessed with out removing fuel tank. Not the valve that was leaking and necessitated the replacement. I requested that audi perform recall on all 4 rollover valves as they installed a knowingly defective part and the risk of another crack/leak exists. Dealer says audi refuses. I have made several calls to both dealer and audi with no response from audi beyond a conversation with customer service. Check engine light back on 5/08/2017. Emailed dealer on 5/11/2017 (attached pdf) with my request (again), and have received no contact from audi. Returning car to dealer for recall on the one rollover valve on 7/12/17. Audi is putting this car back on the road with the strong potential of a fuel leak.

Filed Nov 30, 2016 · Fuel system · 180,000 miles · IL

Tl* the contact owns a 2003 audi a6. While the vehicle was parked, the contact noticed a puddle of fuel in the driveway. The vehicle was taken to an independent mechanic where it was diagnosed that the rollover valve had a crack, causing the fuel tank to leak. The vehicle was repaired per a recall, but the failure recurred. The vehicle was not repaired again. The manufacturer was not made aware of the failure. The recall information was not provided. The failure mileage was approximately 180,000.

Filed Oct 17, 2014 · Fuel system · 150,000 miles · MI

I have 2003 audi a6 quattro 4.2 l. I had in shop for rear brakes and mechanic noted fuel leaking/dripping from front drivers side of plastic fuel tank. I did internet search and found recall campaign 11v267000 and many complaints regarding similar leaks. I verified manufacture date 4/3/(2002 or 2003?) from vehicle which falls in window covered by recall of units manufactured between june 19, 2001 through june 8, 2004. I contacted audi america and eventually spoke with xxxx at [xxx]. She assured me that my car was either not subject to the recall or had been fixed. I told her I was the owner of the car at the time of the recall ( may 2011) and my car had not been fixed. She robotically repeated that my car had either been fixed or not part of the recall. I asked her to verify that it had been fixed and she said they have no records to show that. She said I could contact the dealer that originally sold the car. I said why would a dealer in wisconsin who sold the car in 2003 have any records regarding a recall issued in 20011 when I owned the car? She was silent. I asked for a list of all vins in the recall. She said she could not give me that. She agreed to send me a "range" of affected VIN's. She said they might be able to help me out but I need to have and evaluation done at my expense at an audi dealer to determine what is wrong. I said I know what is wring, it is leaking gas from the rollover valve connection on the tank and reported all over the internet in audi forums etc. I have made an appointment with audi for 31 october min 1 hr labor at $110/hr to evaluate my leak. This recall needs to be enforced and audi needs to be held accountable for their evasive responses. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Aug 21, 2014 · Electrical, Engine · TN

At times when driving the car the acceleration becomes slow and it stalls with a jerk like it's going to just stop also, when the car is put in reverse gear it will not move. I am stuck. The prnd flashing on the dashboard. I become afraid because this can cause serious accidents.

Filed Jun 25, 2014 · Fuel system · 87,434 miles · PA · fire

Tl* the contact owns a 2003 audi a6. The contact stated that the service engine warning light illuminated. The contact mentioned a loud noise coming from the front of the vehicle intermittently. The vehicle was taken to an authorized dealer who reset the codes but the failure recurred. The vehicle was taken back to the authorized dealer who indicated that the engine mount needed to be replaced. The vehicle was repaired but the failure recurred. In addition, the contact stated while driving 60 MPH, smoke started to emit from the engine complartment. The contact mentioned that the fire had consumed and burned through the hood around to the front drivers side of the vehicle. The contact exited the vehicle and the fire department was able to extinguish the fire. A police report was filed. No injuries had been sustained. The contact was not notified of the federal safety agency campaign id number: 11v267000 (fuel system, other), the federal safety agency campaign id number: 07v375000 (fuel system, gasoline) and the federal safety agency campaign id number: 08v157000 (fuel system, gasoline). The vehicle was destroyed. The contact was awaiting an insurance adjustor to inspect the vehicle. The manufacturer was notified of the failure. The approximate failure mileage was 87,434. Updated 08/25/14*lj updated 09/5/2014

Filed Mar 26, 2012 · Fuel system · 112,312 miles · AL

Filling thank more than 2 quarters will start spilling gas, the fumes are coming from the top of the gas thank, driver side, under the rear seat.

Filed Dec 20, 2011 · Fuel system · 109,000 miles · MI

Tl* the contact owns a 2003 audi a6. The contact was driving 55 MPH when the vehicle started to shudder decelerated abnormally. The vehicle was towed to the dealer who advised the contact that the fuel pump failed and needed to be replaced. The contact referenced the federal safety agency campaign id number: 07v375000 (fuel system, gasoline: delivery: fuel pump) but was advised by the dealer that the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was 109,000. ...update 01/20/12 *bf updated 02/03/12

Filed Dec 20, 2011 · Fuel system · MI

On december 18, 2011 I was driving down the road and my vehicle stalled. I had my car towed to the local audi dealer and was told that it needed a new fuel pump. I conducted an internet search and discovered that my audi had been part of a recall and I asked the local dealer if the recall repair had ever been conducted, they told me that my vehicle was not part of a recall. They told me that only audi a-4's were part of the recall. However, the federal safety agency website shows a letter dated july 23, 2007 sent from volkswagen of america, inc. (parent company of audi of america, inc.) to [xxx] of the federal safety agency notifying the federal safety agency that vw of america is recalling and replacing fuel pumps on vw passat's, audi a-4's and audi a-6's, additionally, the letter listed a range of VIN's for effected audi a6's that included my VIN. In the aforementioned letter, vw of america told the federal safety agency that 'any subject vehicle that is presented for service to an authorized volkswagen/audi dealer will be repaired free of charge. Could someone please assist me in causing vw of america to do what they told the federal safety agency they were going to do? Vw of america never notified me of the safety issue or of the recall, and when I presented this information to the dealer they still refused to pay for the repair. Audi endangered me and likely other consumers by never informing us of the recall and I have been forced to pay over $500 to repair a part that was part of a recall and would be repaired free of charge. Could you please assist me in collecting my funds from audi? Additionally, I believe they should be subject to significant penalties and fines for deceiving the federal safety agency. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Jan 19, 2011 · Fuel system · 85,539 miles · CA

January 15, 2011 re: defective investigation pe08008 audi 2003 a6 leaking fuel from gas tank assembly attached, please find evidence I reported my fuel tank leaked fuel to a los angeles audi dealer. I bought the car in 2006 with 66,000 miles and remains with no damage history. In 2008, fuel began dripping at the lower driver side vacuum nipple flange which shifted off the rim of the fuel tank. When the tank was filled passed half full, it would drip onto the ground. There is a valid recall for most 2003 sedan models and the 4.2l off-road quattro. This model is a 2003 sedan with the 4.2l engine size and should certainly be included in these two related recalls. Due to no fault of my own, the nature and severity of the defect, I questioned the problem was a manufactures defect warranting repair and potential recall. They disagreed, said it was out of warranty and quoted me a repair. Valentine asserted the condition was noted to my VIN in their system. Later that year, la audi made different repairs and the fuel leak condition was again put on the work order. Finally in june 2010, a neighbor wrote note the car was leaking fuel. It tank was pouring fuel after filling to the three-quarters mark and parking in our subterranean parking garage. Repair could not be avoided. Based on la audi's position, a local mechanic replaced the entire tank with a salvage one he found. Attached are photos, work repair orders, a hazard note from neighbor of the fuel leak, and signed declaration these item as authentic and all assertions above are truthful. I appreciate assistance obtaining recovery from audi for the repairs as they refused to when presented twice. Your assistance in this matter is appreciated. Updated portable 02/18/11

Questions about the 2003 Audi A6 fuel system

Does the 2003 Audi A6 have fuel system problems?

Owners have filed 21 complaints about the fuel system of the 2003 Audi A6, 32% of all its complaints, more than any other problem.

At what mileage do 2003 Audi A6 fuel system problems start?

The typical (median) mileage in owner complaints is 84,600 miles.

Was there a recall on the 2003 Audi A6 fuel system?

Yes, 4 recalls: 11V267000, 08V157000, 07V375000. Check your VIN to see if your car still needs the free repair.

What year does the Audi A6 have the most fuel system problems?

The Audi A6 model years with the most fuel system complaints are 1999 (39 complaints), 1998 (35 complaints) and 2000 (23 complaints).

Other 2003 Audi A6 problems

Electrical 14Transmission 10Brakes 6Engine 6Tires 6Visibility 3Acceleration 2Body 2Driver assistance 2Lights 2Steering 2Suspension 2Airbags 1

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