Could have sworn I posted this in another thread earlier this morning but can't find my post nor the thread I posted it in. So here goes again.

2009 TSI Manual Tig (80,000k's) has been using oil like it's going out of fashion over the last 6 mths or so. Also had exhaust warning light come on a few times. Got Jimmy to scan it and said it was fine for now, take it back to him if it comes on again....but I can't remember what he said the fault code was (it's the wife's car). Anyway, noticed this quite noticeable rough driving/hesitation/weird mis-fire thing happenning more so when the cars cold and/or at low revs. Also gave it a good run last night and noticed a **** load of smoke pumping out the exhaust when WOT. (was at night so couldn't see colour of smoke).

Any ideas? Carbon build up perhaps? It does get driven on a lot of short trips.