2004 Audi A6 used buying checklist

Test for the problems owners report most

The most reported problems of this model year, with what to look for on the test drive.

• Fuel and propulsion system9 owner complaints, usually around 90,000 miles

  Watch for fuel smells, hard starting and the check engine light, and make sure the fuel gauge works.

• Brakes4 owner complaints

  Brake firmly from moderate speed: the pedal should feel firm and the car should stop straight, with no grinding or pulsing.

• Engine and cooling4 owner complaints

  Start the engine cold and listen for knocking or ticking. Check for warning lights, oil leaks and a low oil level, and ask how often oil had to be topped up.

• Airbags3 owner complaints

  Make sure the airbag warning light turns off after start-up, and that every airbag recall was completed.

Make sure these recalls were done

Recall repairs are free at any dealer of the brand. Ask the seller for proof, or have a dealer check the VIN.

• Fuel system, otherRecall number 11V267000, May 3, 2011
• Fuel system, gasolineRecall number 08V157000, Apr 8, 2008
• Electrical systemRecall number 06V198000, Jun 5, 2006
• Electrical systemRecall number 04V133000, Mar 18, 2004

Service bulletins worth asking about

Repair instructions the maker sent to dealers for known problems. Ask whether any of these repairs were done.

• This informational bulletin contains all the the Audi Oil Quality Standards that should be used when doing...May 10, 2017
• Supersedes Technical Service Bulletin Group 19 number 15-61 dated July 7, 2015Sep 8, 2015
• Supersedes Technical Service Bulletin Group 19 number 14-50 dated June 20, 2014Jul 7, 2015
• Audi: engine, on some vehicles, would run irregularly or have malfunction indicator lamp (MIL) on or...Jul 1, 2015
• Supersedes Technical Service Bulletin Group 10 number 13-10 dated September 5, 2013Mar 17, 2015
• Supersedes Technical Service Bulletin Group 17 number 13-35 dated January 9, 2013Mar 6, 2015

Before you pay

• Decode the VIN and make sure it matches the title, the registration and the car itself.
• Get a vehicle history report to check for accidents, salvage or flood titles and odometer problems.
• Ask for service records, especially oil changes and any transmission fluid service.
• Start the car from cold, and drive it at city and highway speeds for at least 20 minutes.
• Have an independent mechanic inspect the car before you sign anything.