I believe the procedure is easier by using the knobs/buttons in the dash.
Procedure should be in the owner's manual.
I think I had to turn off the service light of a 2000 A4 this way.
This page may help but I am not sure if it works for the '99
View the proper pdf file link (Audi A4 reset procedure) as html.
or read here
(One out of many daves)
It's not a problem. Whoever did your oil change (probably not an audi
dealer), did not reset the oil reminder indicator. A car has no way of
knowing that the oil has just been changed. You need to reset this
indicator manually every time you change your oil.
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