So I sourced out an apu engine which is the 2000 model 20v 1.8 t but is from a a4 Audi which is north to south.. Apparentley there identical to a a3 motor but the sump and turbo manifold is different. I've read up that 20v 1.8t before 2000 bolts straight into the mk2 since mounts are identical and mk2 gearbox bolts upto the motor but will I have to change sump manifold and ecu aswell I'm trying to find a a3 motor all I can find is this and he wants 700 bucks for the motor and loom which is pretty sweet need some help?