Hi guys I got next days appointment to garaj , but i still want ask if anybody had same issue , got a3 2.0 tfsi been driven low rpm and engine start rattling, interrupted, also check engine light come up , i stop car open bonnet and a white smoke which smells like strong petrol comes from behind engine, start engine 2 more time and engine been still working interrupted, tried third time start engine after 20 minutes everything was fine after start driving I noticed white smoke for 10 secs behind me after everything been alright , i checked the oil in engine its very good and quite clean , coolant its alright same what you think can be the cause,? Thank you !