Just a quick question/confirmation on my thoughts on a problem with dark grey/black smoke under acceleration.
Its a 140 TDi (55 plate 38K miles, no mods done) Avant which leaves a smoke trail when accelerating hard (usually when joining motorways and dual carriageways). Derby Audi very informativley told me "they all do it so its not a problem".
Searching round, some of you guys suggest the egr valve may be sticking or the solenoid has stuck. Alternatively a hose is leaking due to a split.
Does anyone else suffer the same problem and what have you done to rectify?
Thanks in advance