Hi all, a few weeks ago i had very erratic power delivery from my 2.5TDI. I tried all the usual things, leaky vaccum pipes, N75 valve test etc,etc. After much investigation and advice from various people i decided to change the MAF as this seemed the most likley culprit. Hey presto! Power was restored! But now, only a few weeks on, the problem is back . (No fault codes and MAF was genuine Bosch unit.) I live in Sleaford, lincolnshire and i can't find anybody local with VAG-COM. Any suggestions/advice or help of any sort would be much appreciated. Many thanks.