OK, so car is a 55 plate 330d manual, my mate has had it for about 2 years without major problems.
Hes had it recently though where sitting in traffic when car was warm it would just cut out randomly but start first time again and be fine for rest of the journey.
Last couple of times have been under heavy acceleration though, one 2-3rd, one in 6th gear. Engine just cuts and stops, PAS etc. goes away, but then it starts first time on key again and seem to be fine.
Been into a local garage and they found no fault codes but have suggested it could be the glowplugs initially and then the crap in the fuel tank , anyone got any sensible suggestions?