Guess what people - after nearly 2 months VW have finally fixed my car and I'm going to collect it this afternoon. They've replaced lots of different parts without success, but in the end it turned out to be a faulty MAF sensor! More news later..ooh it'll be good to have my baby back!
Pleased its sorted but sorry dealer needs a good kicking, 2 months to diagnose a maf issue is unacceptable and in reality I wouldn't be letter them near my pride and joy again