Mk6 golf gt tsi engine swap

[VAG-Abound]

In addition to the sticker I think the engine code should also be "dot punched" onto the crankcase, or nearby. Not necessarily the full 4-characters for "newer" ones, but at least the CAV if it is from that family.

[Crasher]

For some reason they no longer do that. I had a CAVD down to a bare acid dipped block and I found not a thing. All this fuss and pain over VIN protected electronics and now they can't be bothered to even stamp the block!

[VAG-Abound]

Strange...

But for the supplied engine I expect it'll be a 3-character B__, which will confirm it is not CAV_.

[Steadair102]

Ok thank you. The issue I had with my old engine was misfires and low compression on cylinders 1 and 3 and when they’ve taken the head off there’s quite a bit of movement in the pistons and we’re not sure if the cylinder has worn or the pistons have broken as I know they break between the rings if it turned out to be the pistons would it just be a case of replacing the pistons or would it need reboring and oversized pistons putting in?