I have noticed that my 2.5tdi (2003 150bhp AKN 60’000 miles) seems to idle rough when warmed up. It still sounds rough when increasing the revs slightly to about 1000rpm. Once revved over this its fine and smooth. I am concerned that the timing is slightly out. Or could is be something else ?
For a V6 i was expecting a much smoother idle
I have VAG COM system, anything I should check before getting the dealer involved ?