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If your convenience lights, turn signals, seat warmers, stereo, headlights or other electronic components suddenly stop working, chances are you have a fuse that has blown out. The video above shows how to check and change blown fuses in the engine bay of your 2004 Audi A8 Quattro in addition to where the fuse box diagram is located. Fuses should always be the first thing you check if your A8 Quattro is experiencing electrical difficulties because they are relatively easy and inexpensive to change yourself. The more electronics your A8 Quattro has, the more fuses it has. Some Audis have multiple fuse boxes in the engine bay, so be sure to find the fuse(s) in question. Some components may have multiple fuses, so make sure you check all of the fuses that are linked to the component that is no longer working properly.
If you need to replace a blown fuse in your A8 Quattro, make sure you replace it with one that has the same amperage as the blown fuse. If checking and replacing the fuse for the component in question doesn't work, we recommend seeking assistance from a trusted professional mechanic. They should be able to figure out if the component needs to be replaced or if there is a short or some other problem with your A8 Quattro.
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2004 Audi A8 Quattro L 4.2L V8
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2004 Audi A8 Quattro L 4.2L V8
Learn where your spare tire and jack are located before you need it on the side of the road2004 Audi A8 Quattro L 4.2L V8
Animals love the sweet smell of antifreeze, too bad it's toxic! Fix your minor leaks2004 Audi A8 Quattro L 4.2L V8
Low coolant levels is all to common - top yours up today2004 Audi A8 Quattro L 4.2L V8