Slightly odd one , got a 94 300 tdi

Starts fine and runs good but only in 3rd gear when i back off she smokes white out the back , dont matter if its cold or not and only when i back off in 3rd, not using any fluids atall

Mine had a problem with masses of white/light grey smoke and I do mean masses, turned out to be the timing had slipped a little and thats all it was. Cost me £60 to have it set properly.

That was after the head etc had been off trying to fix it