My 314 (petro)l has developed an intermitant problem which meant that when it was in the garrage it behaved perfectly ! but is since reoffending !!

Symptoms :

Starts perfectly , drives off perfectly, then sometimes after approx 5 mins when coming to a stop the engine will cut out or idle in an erratic fashion (revs dropping then picking up again). If the engine cuts out it will take 15 secs or so to restart and not the first click. The erratic idling will then come and go whilst the van is in general use. Sometimes there sometimes not and idling normaly !!

Can anyone point me in the right direction or have an idea ?

regards to all