Hi I have a 2003 1.9tdi 130 with 85k and when i put my foot down and the revs go over 3.5 thousand i get a lot of bluey grey smoke out the backAlso it struggles to start a little when cold, had a crankshaft sensor fitted but no joy wonder if the two could be connected maybe a timing problem
any ideas?

 

You may not get much action here. Audi doesn't import a diesel to the US. You might want to try one of the VW fora, VW diesels were available in the US.