they all do it
black mark on my wall where I park says its normal
It sprays a little oil onto the piston when first started on the early ones, so the engine doesn't suffer from heavy wear & tear for the first few mins or miles.
I had the same fears when I first got mine. There is a thread on here some where from me. I have a 200tdi. Its normal for it to put out a puff of black smoke on start up. I was told it was due to the injectors pumping in neat Diesel as a sort of choke on start up. I have had mine for four years now and its still the same.do they, mines a 200 and ive only owned it for a couple of wks, im sure it didnt do it when i bought it but maybe im just conscience of it now
cheers
heres an idea for ya..any ideas how i can stop it smoking when its first started, clears straight away??