hi all just bought a 1999 a4 tdi problem with the car is the lack of power.
when the turbo suposed to kick in it just blows out black smoke so im guessing the turbos dead.
but while driving today i had no power from the turbo at all (there was a little before) but also no smoke the car was struggling to pull past 60 and also had a slight miss at the higher rev range but not all the time. then sometimes the black smoke comes back and a ever so little bit of turbo pull,

so if it is the turbo how much am i looking at for a new one and how much work is involed in fitting it

sujestions anyone thanks