as suspected, coil pack!!
couldn't get anyone in milton keynes to look at it at short notice, so rang Total-VAG in Leighton Buzzard, expecting the same story, but they told me to bring it down as soon as i could, even though I told them it would be after 6pm, they stayed open for me, and did the job, sorted, in and out in 15 minutes, with a cup of tea to boot!!
really fantastic service that, and what really made me smile, was a local VAG specialist in MK who i spoke to, couldn't fit me in, were stacked out etc etc, well, i drove past them on my way, as they are near my work, and at 5.35, all gone home, lights off, porsche revved up...unbelievable!
well done Total-VAG, top class, would recommend...apart from the tea!! lol