What's good fellas. I've just joined up and want some knowledge from you guys. I have re-built my 1.8 t engine after having blue smoke bellowing out the rear. I found out that the piston was absolutely effed. So I replaced it and put it back in. Now the starter motor isn't engaging with the flywheel? I've asked other vag owners and I've been told its the earth wire. Where would this be?