How do I reset the service light for a 99' Audi A4?

I just had the oil changed last week....How do I reset the service light for a 99' Audi A4?Turn the key to the key on/engine off position and hold the reset button for your odometer/trip meter for 5 seconds. Continue holding while you start the car.How do I reset the service light for a 99' Audi A4?Or you could just unhook the battery and hook it back up that works as well with most cars..How do I reset the service light for a 99' Audi A4?Jr is correct do not disconnect your battery apart from losing your radio codes its not necessary.Mick UK have an A4