Model year guide

2004 Audi A6

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2004 Audi A6 is worth — from official NHTSA and EPA data. 48 on record.

2004 Audi A6 — representative photo
Representative photo · via Wikimedia Commons

2004 Audi A6 at a glance

Safety recalls4
Owner complaints35
Combined21 mpg
Typical price$2,822

Free: specs, open recalls for that exact car, build sheet and fair price.

2004 Audi A6 recalls 4

Fuel System, Other:storage:tank Assembly NHTSA Campaign #11V267000 · 03/05/2011

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, …

Fix: 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.

Fuel System, Gasoline:storage:tank Assembly NHTSA Campaign #08V157000 · 08/04/2008

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 …

Fix: 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.

Electrical System NHTSA Campaign #06V198000 · 05/06/2006

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 VEHICLES ARE ALL…

Fix: 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.

Electrical System NHTSA Campaign #04V133000 · 18/03/2004

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.

Fix: 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 1-8…

Source: U.S. NHTSA. A recall applies to a model year, but only a VIN check shows whether a specific car has had the repair done.

2004 Audi A6 common problems

The most-reported problem areas from 35 owner complaints filed with NHTSA — and what to check before you buy.

Service Brakes
Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.
Fuel/propulsion System
Check for fuel or battery warnings, hard starts and stalling. On a hybrid/EV, confirm charging and range behave normally.
Fuel System
Sniff for fuel odor, check for leaks, hard starts or stalling, and confirm the fuel gauge reads correctly.
Gasoline
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Electronic Stability Control (esc)
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.

2004 Audi A6 MPG & running costs

Combined21 mpg
City18 mpg
Highway25 mpg
Est. annual fuel cost$3,600

Source: U.S. EPA / DOE fueleconomy.gov, averaged across trims.

What's a 2004 Audi A6 worth?

Low
$1,050
Typical price
$2,822
High
$5,000

From 48 comparable 2004 Audi A6 listings.

Estimated 5-year cost to own

A rough guide to what running a 2004 Audi A6 costs over five years and 75,000 miles.

Fuel (5 yrs)$18,000
Depreciation (5 yrs)$1,950
Total$19,950
Per mile$0.27

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.

2004 Audi A6 trims & engines on record

Trims
2.7T S-Line quattro · 2.7T quattro · 3.0 quattro · 3 · 4.2 quattro · 3.0 Avant quattro
Engines
2.7L 6-cyl 250 hp · 3.0L 6-cyl 220 hp · 4.2L 8-cyl 300 hp

2004 Audi A6 vehicles on record

2004 Audi A6 2004 Audi A6 2.7T S-Line quattroWAUCD64B84N103205 2004 Audi A6 2004 Audi A6 2.7T S-Line quattroWAUCD64B44N066265 2004 Audi A6 2004 Audi A6 3WAUJT64B34N028875 2004 Audi A6 2004 Audi A6 2.7T S-Line quattroWAUCD64B34N081520 2004 Audi A6 2004 Audi A6 3.0 Avant quattroWAUVT64BX4N008849 2004 Audi A6 2004 Audi A6 3.0 quattroWAULT64B64N048580 2004 Audi A6 2004 Audi A6 2.7T S-Line quattroWAUCD64B54N098612 2004 Audi A6 2004 Audi A6 3.0 Avant quattroWAUVT64B94N083221 2004 Audi A6 2004 Audi A6 2.7T quattroWAULD64B64N007055 2004 Audi A6 2004 Audi A6 3.0 quattroWAULT64B54N053172 2004 Audi A6 2004 Audi A6 3.0 quattroWAULT64B64N078730 2004 Audi A6 3.0 quattroWAULT64B74N005575 2004 Audi A6 2004 Audi A6 3WAUJT64B64N003873 2004 Audi A6 2004 Audi A6 3WAUJT64B64N044200 2004 Audi A6 2004 Audi A6 2.7T S-Line quattroWAUCD64B14N083413 2004 Audi A6 2004 Audi A6 2.7T S-Line quattroWAUCD64B34N103399 2004 Audi A6 2004 Audi A6 2.7T S-Line quattroWAUCD64B74N070021 2004 Audi A6 2004 Audi A6 3.0 quattroWAULT64B64N049146 2004 Audi A6 2.7T quattroWAULD54B94N037175 2004 Audi A6 2004 Audi A6 4.2 quattroWAUML64B24N093620 2004 Audi A6 2004 Audi A6 3.0 quattroWAULT64B94N080519 2004 Audi A6 2004 Audi A6 2.7T quattroWAULD64B24N019056 2004 Audi A6 2.7T S-Line quattroWAUCD64B74N066521 2004 Audi A6 2004 Audi A6 3.0 quattroWAULT64B64N052192

Other Audi A6 model years

2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2003 2002 2001 2000 1999 1998 1997 1996

2004 Audi A6 — frequently asked questions

Does the 2004 Audi A6 have any safety recalls?

Yes — NHTSA lists 4 safety recalls for the 2004 Audi A6. Recall repairs are free at any franchised dealer. Whether a specific car still has one open depends on its VIN.

What are the most common problems with the 2004 Audi A6?

Based on 35 owner complaints filed with NHTSA, the most-reported problem areas are service brakes, fuel/propulsion system, fuel system.

What gas mileage does the 2004 Audi A6 get?

The U.S. EPA rates the 2004 Audi A6 at about 21 mpg combined (18 city / 25 highway).

How much is a 2004 Audi A6 worth?

Comparable 2004 Audi A6 listings run roughly $1,050–$5,000, typically around $2,822 (from 48 vehicles).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.