2004 Audi A6
WAUZZZ44ZLN030577
Vehicle history report for the 2004 Audi A6 (VIN WAUZZZ44ZLN030577). Gray, wagon / suv, diesel. Registered in Khmelnytskyi. 4 NHTSA recall campaigns for this model year. Unlock full title, salvage, lien & accident history.
Full vehicle history report
What a full report checks for VIN WAUZZZ44ZLN030577
A full report searches national title databases (NMVTIS) and licensed history providers for this VIN and shows whatever records are on file — not every vehicle has every record type. The decode, safety recalls and owner complaints above are always free.
History reports cover US-titled vehicles only. This car is registered in Ukraine, so title, salvage and odometer records from the US national title database (NMVTIS) don't apply to it. The registration record, specifications and recall data on this page are free.
At a glance
Vehicle identity & specifications
What's a 2004 Audi A6 worth?
What comparable 2004 Audi A6 vehicles are listed for — a quick gut-check before you negotiate.
Is the seller's price fair? Get this exact VIN's current market value — retail, trade-in & loan value — in the full report.
See this car's exact value →MPG & running costs
U.S. EPA fuel-economy estimates for the 2004 Audi A6.
Source: U.S. EPA / DOE fueleconomy.gov. Actual mileage varies with trim and driving conditions.
Estimated 5-year cost to own
A rough guide to what running a 2004 Audi A6 costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. Depreciation compares today's typical asking price for this model year ($2,822) with the same model 5 model-years older ($850), from CarLogs listing data. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Dimensions & weight
Manufacturer-reported figures for the 2004 Audi A6 — ranges cover the 5 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.
Investigations & service bulletins
NHTSA defect investigations 1
FUEL TANK LEAK Closed
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 NHTSA RECALL NUMBER FOR THE VW VEHICLES IS 08V-156 (VW ALSO IS CORRECTING DEFECTS RELATED TO HEAT SHIELD AND…
NHTSA #PE08008 · Fuel System, Gasoline, Fuel System, Other · opened Jan 2008 · closed May 2008An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.
Manufacturer service bulletins 151
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be free. Showing the 10 most recent of 151.
This bulletin provides information on the additional reporting requirements for safety related inquiries.
Bulletin A0023742052680_4 · Equipment · Oct 2023This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
Bulletin SM 48-2022 · Equipment · Jun 2022This informational bulletin explains how to order replacement VIN plates, Safety Certification Labels, etc.
Bulletin A0021482021205_6 · Structure, Equipment · Jun 2021This bulletin contains instructions for determining if bushings need to be replaced.
Bulletin A4021242016453_4 · Suspension · Apr 2021This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly.
Bulletin A0020362002047_1 · Equipment · Apr 2020Exterior lights, moisture accumulation 2013-2021 A3 Cabriolet, 2016-2018 Sportback, 2004-2005 A4 Cabriolet, 2004-2008 S4 Cabriolet, 2008 RS4 Cabriolet, 2010-2021 A4 allroad, 2018-2021 A5 Sportback, 2010-2012, 2018-2021 RS5 Cabriolet, 2018-2021 S5 Sportback, 20…
Bulletin A9419182012749_1 · Equipment, Exterior Lighting, Equipment Adaptive/mobility · Dec 2019New document 2004-2020 A4 allroad, A6 allroad, A8L, R8 Spyder
Bulletin 20AUTIRECHAINS · Tires, Equipment, Equipment Adaptive/mobility · Dec 2019Parts are currently blocked from sale at this time.
Bulletin SM 80-2019 · Oct 2019This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage.
Bulletin A0019262052680_2 · Equipment · Sep 201900 Software Version Management (SVM), operating instructions
Bulletin A0019252011732_1 · Electrical System · Sep 2019Source: NHTSA Office of Defects Investigation, listed for the A6. Model-year data, not specific to one car.
Canadian recalls 3
Transport Canada recall campaigns for the 2004 Audi A6. Relevant if the car was first sold in, or imported from, Canada.
Fuel System
On certain vehicles, aging of the plastic material in the fuel tank rollover valve, combined with bending stress from the aluminium ventilation line to the rollover valve nipple, may lead to cracking of the nipple. If this happens, a fuel leak may result. Fuel leakage, in the presence of an ignition source, could result in a vehicle fire. Correction: Dealers will reinforce the…
Transport Canada #2011171 · Apr 2011Fuel System
On certain Audi A6 Quattro and Allroad Quattro, aging of the plastic material in the fuel tank rollover valve, combined with bending stress from the aluminium ventilation line to the rollover valve nipple, may lead to cracking of the nipple. If this happens, a fuel leak may result. Fuel leakage in the presence of an ignition source could result in a vehicle fire. Correction: De…
Transport Canada #2008116 · Apr 2008Electrical
On certain Audi S6, A6 and A6 Allroad Quattro, contact between the left driver's side crash element and the headlight switch wiring harness could eventually result in an electrical short. Even though such an electrical short is not very likely, it could result, in a worst-case scenario, in a fire originating in the left dashboard area. Correction: Dealer will install a protecti…
Transport Canada #2004095 · Mar 2004Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the Audi A6
The Audi A6 is an executive car manufactured by the German company Audi since 1994. Now in its sixth generation, the successor to the Audi 100 is manufactured in Neckarsulm, Germany, and is available in saloon and estate configurations, the latter marketed by Audi as the Avant. Audi's internal numbering treats the A6 as a continuation of the Audi 100 lineage, with the initial A6 designated as a member of the C4-series, followed by the C5, C6, C7, C8 and the C9. The related Audi A7 is essentially a Sportback (liftback) version of the C7-series and C8-series A6 but is marketed under its own separate identity and model designation.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.
Safety recall campaigns 4
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
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. …
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.
NHTSA Campaign #11V267000 · manufacturer #20L8/JY · 03/05/2011FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
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,…
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.
NHTSA Campaign #08V157000 · manufacturer #20L8/JY · 08/04/2008ELECTRICAL SYSTEM
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH HALOGEN LOW BEAM HEADLIGHTS, CERTAIN CONNECTOR PINS IN THE HEADLIGHT SWITCH CONNECTOR COME INTO CONTACT WITH EACH OTHER CAUSING A SHORT CIRCUIT. NOTE: VEHICLES WITH XENON LOW BEAM HEADLIGHTS ARE NOT AFFECTED BECAUSE THE CIRCUIT IN THESE VEHICLES CONTAINS A FUSE, WHICH PRECLUDES EXCESSIVE CURRENT FLOW IN THE CASE OF A SHORT CIRCUIT. AUDI S6 AND S6 AVANT V…
Remedy: DEALERS WILL REROUTE THE WIRING HARNESS BY INSTALLING A JUMPER WIRING HARNESS. THE RECALL BEGAN ON DECEMBER 16, 2006. OWNERS MAY CONTACT AUDI AT 1-800-822-2834.
NHTSA Campaign #06V198000 · manufacturer #JN · 05/06/2006ELECTRICAL SYSTEM
ON CERTAIN PASSENGER VEHICLES, IF A DRIVER'S KNEES PUSH AGAINST THE KNEE BOLSTER (CRASH ELEMENT) LOCATED UNDER THE DASHBOARD, IT CAN CONTACT THE HEADLIGHT SWITCH WIRING HARNESS, AND AN ELECTRICAL SHORT COULD OCCUR.
Remedy: DEALERS WILL INSTALL A PROTECTIVE COVERING ON THE KNEE BOLSTER (CRASH ELEMENT). IN ADDITION, THE WIRING HARNESS AS WELL AS THE FELT PROTECTOR ON THE LEFT SIDE OF THE DASHBOARD CARRIER WILL BE CHECKED, AND REPLACED IF NECESSARY. THE RECALL BEGAN ON JULY 26, 2004. OWNERS SHOULD CONTACT AUDI AT 1-800-8
NHTSA Campaign #04V133000 · 18/03/2004Note: recall data comes from the U.S. NHTSA and covers the US-market version of this model. A car registered in Ukraine may have different campaigns — check with the manufacturer's local importer.
These are NHTSA recall campaigns for this model year, last checked 7 Oct 2026. They don't show whether this particular car has had the repair done — check this VIN on NHTSA.gov or ask a franchised dealer. Recall repairs are free.
We'll email you the moment a new safety recall is issued — no spam, unsubscribe any time.
Common problems & what to inspect
Based on all 35 owner complaints filed with NHTSA for the 2004 Audi A6, here are the most-reported problem areas — and what to check before you buy.
💥 1 involved a crash 🔥 2 involved a fire 🚑 1 reported injury
🔍 Sniff for fuel odor, check for leaks, hard starts or stalling, and confirm the fuel gauge reads correctly.
🔍 Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
🔍 Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.
🔍 Check for fuel or battery warnings, hard starts and stalling. On a hybrid/EV, confirm charging and range behave normally.
🔍 Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
🔍 Check tread depth, the DOT age date, and that all four tires match with even wear. Look for bulges or cracks.
Pre-purchase checklist
- Match the VIN on the dash, door jamb and title — they must be identical.
- Cold-start the engine; listen for knocks and check for blue or white exhaust smoke.
- Test-drive through all gears at low and highway speed — no slipping, shudder or pulling.
- Confirm every warning light clears at startup (none should stay on).
- Check fluids — oil, coolant, transmission — for level, color and leaks.
- Look underneath for rust, fresh undercoating or signs of collision repair.
- Always get an independent pre-purchase inspection from a trusted mechanic.
Owner complaints 35
Complaints filed with NHTSA by owners of the 2004 Audi A6.
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE
- ABS Module has intermittent failures, available for inspection - Anti-lock brakes will not work - Yes, the problem reoccurs and the module loses power and then errors out - Others - VCDS - ABS lights come on and BRAKE light stays illuminated
NHTSA ODI #11559710FUEL/PROPULSION SYSTEM
RE: SAFETY RECALL 20L8/JY; 08V157000: FUEL TANK ROLLOVER VALVE MODIFICATION; VIN: (XX); 2004 AUDI A6 3.0L QUATTRO AT5 ATTACHED DOCS: 1. 20L8/JY RECALL NOTICE. 2. 7.14.2008 & 11.18.18 AUDI N. SCOTTSDALE, AZ DEALER INVOICES 3. AUDI A6 GAS TANK DIAGRAM. AUDI CORP EMAIL RESPONSE: "AT THIS TIME WE HAVE IDENTIFIED THAT THE 20L8 REPAIR WAS SPECIFIC TO TH…
NHTSA ODI #11157093ELECTRICAL SYSTEM
AFTERMARKET RADIO: PIONEER ELECTRONICS AVH-4100 NEX BACKUP CAMERA FAILS AND DISTRACTS DRIVER SIGNIFICANTLY. I HAVE ATTACHED A SCAN OF THE COMPLAINT TO PIONEER ELECTRONICS. THE RADIO LIKELY HAS SOFTWARE DEFECT THAT CAUSES VERY DISTRACTING FAILURES WHEN OPERATING THE BACK-UP CAMERA. PIONEER ADVERTISES THAT THIS BACKUP CAMERA WORKS AS ADVERTISED - IT IS ACT…
NHTSA ODI #11010494FUEL/PROPULSION SYSTEM
WHEN ENGINE IS COLD, USUALLY BELOW 0 DEGREES FUEL SPRAYS FROM INJECTORS. THIS COULD IGNITE ON EXHAUST MANIFOLDS CAUSING CAR FIRE.
NHTSA ODI #10819557ENGINE
TL* THE CONTACT OWNED A 2004 AUDI A6. WHILE DRIVING AT 20 MPH, SMOKE APPEARED FROM THE ENGINE COMPARTMENT AND THE VEHICLE CAUGHT FIRE. A POLICE REPORT WAS FILED AND THERE WERE NO INJURIES REPORTED. THE VEHICLE WAS DESTROYED. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 06V198000 (ELECTRICAL SYSTEM). THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILUR…
Fire · NHTSA ODI #10724137ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
WITH THE ELEC STABILITY CONTROL BEING INTERMITTENT THIS IS BEING CAUSED BY THE ABS MODULE GOING BAD/INTERMITTENT THE BRAKE PEDAL PRESSURE CHANGES. I HAVE EXPERIENCED THIS WITH MY 2002 RAM 1500 (4X4) AS WELL. THIS COULD BE A PROBLEM IN ALL CARS AND TRUCKS. THE COST THE FIX FOR AN AUDI IS AROUND $2500.00 AND MY RAM WAS $1300.00. *TR
NHTSA ODI #10683045FUEL/PROPULSION SYSTEM
TL*THE CONTACT OWNS A 2004 AUDI A6. THE CONTACT STATED THAT WHILE STARTING THE VEHICLE, A STRONG ODOR OF GASOLINE EMITTED INSIDE AND AROUND THE VEHICLE. THE CONTACT MENTIONED THAT THE CHECK ENGINE LIGHT ILLUMINATED. THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER, WHERE IT WAS DIAGNOSED THAT THE FUEL TANK COLLAPSE AND NEEDED TO BE REP…
NHTSA ODI #10679130VEHICLE SPEED CONTROL,ELECTRONIC STABILITY CONTROL (ESC)
THE FIRST THROTTLE VALVE MALFUNCTION HAPPENED ON JULY 2013. COST TO REPAIR 1557.95 PART COST 878.00 MILEAGE 66784 THE SECOND MALFUNCTION HAPPENED ON OCT. 14, 2014 TO REPAIR 1200.00 PART COST 913.00, MILEAGE 69202 WHAT HAPPENS HERE IS THE ENGINE SHUTS DOWN. THERE COULD HAVE BEEN E MAJOR ACCIDENT IF SHE WAS REAR ENDED. I CALLED AUDI TO TELL THEM…
NHTSA ODI #10654540+ 27 more complaints on record.
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Frequently asked questions
Can I find out who owns this vehicle from the VIN?
No — and no legitimate service can. Linking a VIN or plate to a named owner is restricted by the U.S. Driver's Privacy Protection Act, the EU GDPR and equivalent laws. CarLogs shows the vehicle only — specs, recalls, problems and value — never the person.
Are there safety recalls on the 2004 Audi A6?
NHTSA lists 4 recall campaigns for the 2004 Audi A6 model year. That covers the model year, not this individual car: to see whether a specific vehicle still needs a recall repair, check its VIN on NHTSA.gov or ask a franchised dealer. Recall repairs are free.
What is a fair price for a 2004 Audi A6?
Comparable 2004 Audi A6 listings run roughly $1,050–$5,000, typically around $2,822 (from 48 comparable vehicles). The full report shows this exact VIN's valuation.
What fuel economy does the 2004 Audi A6 get?
The 2004 Audi A6 has a U.S. EPA estimate of 21 mpg combined (18 city / 25 highway).
Recall data checked 7 Oct 2026 · Sources: NHTSA (recalls & complaints), U.S. EPA (fuel economy), NHTSA vPIC (specifications). Vehicle data only — CarLogs never shows owner information.