tworthy50

Thanks for all your input 

just fitted a new fuel filter revs as sweet as before problem cheap option first before paying for garage investigations.

had a engine run problem last year trouble starting new injectors erg valve and other bits turned out to be a rag in duct next to turbo removed all was fine the van had been hunting at idle for a year before the loss of power and not starting.

But that said my fault is lumpy erratic power from the engine/transmission and not wheel balance issue.

New member from swindon wiltshire 

Have a A4 Adent tdi auto

hi all

I have a A4 Advent s-line that runs very lumpy once going over 3000 revs.

Have put fuel cleaner in tank but makes no difference and the symptom is getting worse.

A local garage put the car through a diagnostic test but this showed nothing being flagged.

the car drives smoothly at speed but only if you take it steady to get there.

any ideas please