Cant feel it at 30ish on a decent flat surface but when idling along (not accelerating) at higher speeds you start to feel it and its constant at 70 on a motorway.
Steve I was looking for more than this. To start with if you are a BMW expert you should be able to pass comment on whether these are common faults. Looking at internet threads I get the impression the vibrating certainly is.
No disrespect but any mechanic could have given me your answer foc!!