We are still working to obtain content for your car, however the video above is believed to have similar characteristics as your car.
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.
Replacing a dirty air filter can improve gas mileage by up to 4%. Isn't efficiency great?2004 Audi A6 3.0L V6
Learn where your air filter is located and how to determine if it needs to be changed.2004 Audi A6 3.0L V6
If you are leaking oil and parking on your oil spots each night, the oil is breaking down your tires' rubber2004 Audi A6 3.0L V6
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
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
Unlike a waist belt, these usually become looser as they age! Learn how to check it here2004 Audi A6 3.0L V6