Ok, service light is on!..and has been on for about 2 months now...thinking i shud get it serviced. But dont know how much Audi will charge for a full service...it had a long life service at 45k..its now at 78k!. Thinking i could jus change the oil filter myself, pick up a new peformance K and N filter for the Air filter..spark plugs?..needed???...checks of the CV joints were done when i picked the car up in January..soo everything else seems well. Will i need a Sump plug when changing the oil filter, recomended oil filters? Thanks in Advance Guys!