15 min oil change for 04 Audi a8. Jack car up on passager side. Remove bottom plate. Use
T-55 to remove oil drain nut. Remove air filter housing box tube from secondary air pump. You can't miss it ,on passager side in front, two corrugated tube hook to it ( believe one in front it is). To remove corrugated hose press on both side of hose and pullout. Now you have to remove the whole air filter housing box there two screw that hold it down. Use T-30 or T-27 ( can't remember ). Next disconnect intake junction after MAF sensor. So you can pull out air filter housing. Oil filter behind heat shield, 24mm should remove oil filter housing. Use to take my to shop 1 1/2 hr for oil change.