Got seriously f**ked off with it! Got an aggressive misfire and idle is as lumpy as my ballbag. Either coil packs or plugs I presume
Cylinder 4 fault - Coilpack and spark plug thoroughly f**k*red!
All coil packs replaced and a brand new set of NGK platinums.
Problem solved.
Ps. The 3 existing 'good' coil packs are in the boot for safe keeps!
Pps. The coil pack in the photo has a serial number of (VW AG 07K 905 715). According to the web these aren't even the correct ones for my engine model and yet they are the ones that VW put in, when my car went in for the initial recall. wayne kerrs! The Bosch ones I have replaced them with seem altogether more sturdy and have a rubber sleeve that comes all the way down to the tip of the spark plug, so hopefully no moisture will get into these and render them useless!