I am a new member and I have a 53 plate 1.7 Cdti Astra. The car runs great, no start up smoke and burns no oil. It has done 103k with a full service history.
The problem I have is under acceleration you get a lot of black/grey smoke. I have put some injector cleaner in and given it a good run up the motorway. I thought it had helped but I think the blow out just cleaned the system out as It's back again now. Does anyone have any ideas? It doesn't seem to do it if you rev it when it's stood still.