we all know the early v6 tdi cams and valve gear wear out. later engines have different cam construction and roller rockers. we have one of these later v6 tdis "bau engine" in at work this last week with a confusing misfire. intermittently misfiring. on looking at the injector quantity comparisons on the bosch kts, cylinder 6 seemed to be very different whenever i ran the comparison test. after having the injectors sent off and checked (coming back as ok). taking a closer look at the cams i noticed on cylinder 6, one of the inlet valve cam lobes has cracked causing the actual lobe the roller rocker runs on to be able to move around its positivly loose! i know there are people on here that work at the stealers. has anyone come across this before? is there an under lying fault with the cams or has something caused it to break? im guna post up a pic of it tomorrow.