Hi, I am in need of help .. I have just bought a 2004 Caddy 1.9TDi from a guy in the UK, I live in France.
I was conned and sold a lemon. Anyway there were so many problems and in the first week the belt snapped !! Okay a new 38000 mile engine complete other than the turbo, a new clutch and flywheel and belts etc etc...

The problem basically is what it was doing in the beginning. All seems fine then the the power drops, it belches out smoke and sometimes makes a noise, something like diesel knock. Not all the time but quite often, but then it can just come back to life. Round the streets and small trips it is not so bad but on the highway it is worst.

I have a diagnostic tool and nothing is showing at all , no DTCs ...

And trying to find a mechanic in France is less likely than finding the remains of a unicorn in your cereal box !!

Any ideas ?