Hi guys,
Thanks for reading my post. I have had my A3 for three months now. I noticed that when the engine is cold it runs slightly rough and shakes on idle. However, when the engine warms up, idling is smooth, however after idling for about a minute or two it chucks out a lot of blue smoke. If you take it for a drive and put your foot down it clears up. Leave it idling and it starts smoking again. Any ideas on what it could be? Can be very embarrassing when sat in traffic and i am smoking everyone out. This will sound bad but it has not been serviced in 20k miles, i am servicing it in a few days but i doubt that would cause the blue smoke. I also doubt it is low compression because it starts very well first time no matter what temperature it is. The engine code is BXE.