Adam, I was in the service area in Mercedes last month and they seam to drop all the engine and sub frames down on the floor to do there work, they had two vans 1 new shape 1 old shape Vito's in there with engines and sub frames on floor.I was shocked to here they still use the same lump as are models in them.what with all the problems they have.well it looked the same cdi engines.
Incorrect, The CDi engine in the BM639 is not the same as the CD2 engine fitted to the old BM638 Vitos. The new Vito has a 646 engine fitted and old vito has a 611 fitted. I suggest that you take a drive in the new one and give an opinion.