2003 Audi A4 4 cyl Automatic 100,000 miles. I have an Audi A4 1.8 Turbo. When it idles for about 3-5 minutes it begins to output blue - black smoke from the twin exhaust. Is this a problems caused by the turbo is not getting air through it when the vehicle is not moving? When driving it does not appears to be a great problem. Alternatively could it be a fuel issue or something more sinister - the rings perhaps?
Monday, October 11th, 2010 AT 5:05 AM