EN
Parts & Tools Parts & Tools
Mechanics Mechanics
Gear Guide Gear Guide
search

Engine Light Is On: 1998-2004 Audi A6 - What to Do

We are still working to obtain content for your car, however the video above is believed to have similar characteristics as your car.

 
Video Description

A check engine light can indicate a broad spectrum of problems with your 2004 Audi A6. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. The video above shows how to locate the on board diagnostics (OBD) plug on your 2004 A6, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your A6.

Intermittent Check Engine Light: If the check engine light on your 2004 A6 is intermittent, try to take note of the conditions when this happens. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue. Steady Check Engine Light: If your check engine light is on every time you operate your A6, you need to have it checked as soon as possible, especially if you notice performance problems or unusual noises. Flashing Check Engine Light: If your check engine light is flashing, stop driving your A6 and have it towed to your nearest mechanic - you probably have a very serious problem with your car and you risk ruining your engine by driving it. If you are unsure about what your diagnostic trouble codes mean; have your A6 diagnosed by a professional automotive technician.

Other videos you might find helpful

  • Air Filter How-To: 1998-2004 Audi A6
    Replace your air filter!

    Replacing a dirty air filter can improve gas mileage by up to 4%. Isn't efficiency great?

    2004 Audi A6 3.0L V6
  • 1998-2004 Audi A6 Engine Air Filter Check
    Determine if your air filter is dirty

    Learn where your air filter is located and how to determine if it needs to be changed.

    2004 Audi A6 3.0L V6
  • 1998-2004 Audi A6 Oil Leak Fix
    Plug the oil leak

    If you are leaking oil and parking on your oil spots each night, the oil is breaking down your tires' rubber

    2004 Audi A6 3.0L V6
  • 1998-2004 Audi A6 Interior Fuse Check
    Check for a blown interior fuse

    Carmakers are hiding interior fuse boxes all over the place these days - see how to check your interior fuses here!

    2004 Audi A6 3.0L V6
  • Highbeam (Brights) Change: 1998-2004 Audi A6
    Replace brights

    On many cars, the high beam bulb runs at reduced power during the day - check 'em and change 'em!

    2004 Audi A6 3.0L V6
  • Check the Belts: 1998-2004 Audi A6
    Check the belts

    Unlike a waist belt, these usually become looser as they age! Learn how to check it here

    2004 Audi A6 3.0L V6
  • See all videos for the 2004 Audi A6
Comments
The Right Parts
The Right Tools
gas caps code readers fuses phone holders fuel injector cleaner floor mats terminal clamps gas tank doors