Hello - we have had a misfire on our Golf 1.4 GT TSi 160PS since July (bought car new in May this year). 1st visit to garage said it was a spark plug problem on one cylinder (EML light came on).
A few weeks later misfire re-occurred, but no EML light - this time garage had the car for 4 weeks and ended up replacing top part of engine although they hadn't identified the problem!
November - misfire happened again - EML light flickered briefly - 3rd visit to garage and all they did was re-set the engine management system and they said if that didn't work, they would then look at the coil packs and the injectors (Roadside Assist swapped coil from cylinder 1 to 4, as that cylinder came up with an issue on his computer).
December 27th - here we go again - EML light came on, and misfire was worst it has ever been; Roadside came out today, and again cylinder 1 is showing a fault - so can't be the coil?? Car now at garage, and awaiting them to start work on it.
Having seen all the other comments, we are wondering if this is a widespread problem, but if so, what are VW doing about it, is it worthy of a recall, or are we in the minority and just unlucky? Would be interesting to know if all our cars were manufactured in the same period, which would perhaps indicate a short-term problem with production, or whether VW are aware of a bigger issue and keeping quiet - I woulds imagine they have produced a fair amount of these particular engines both on the mark VI and mark V.