Hi, i have 54 plate A6 3.2 fsi se quattro engine code AUK. I have just been told that the engine is basically wrecked and require a replacement. I have sourced an engine from a 55 plate A4 3.2 quattro and visually it looks the same from the pictures i have seen. The A4 engine code is BPK. iam wondering if anyone on the site can help information regarding the compatibility of these engines, thanks in advance