Reset service light indicator, engine oil life Audi S8, oil reset instructions:
Locate the trip-meter knob in the lower center of the gauge cluster. The knob is black and you use it to reset your mileage on your tip-meter.
Push inward on the knob until the service interval light starts to flash. This generally takes about 10 seconds.
Let the knob out, and then tap it in one time quickly to turn off the light.
You can expect the Audi S8 service interval light to come on every 3,000 miles when it is time to change the oil in your vehicle. You can also expect it to come on every 15,000 miles for a regular maintenance check. If you usually take your Audi to the dealership to have it serviced, they will turn the light off for you. However, if you want to save money and do the work yourself, you need to know how to turn off the service interval light yourself.