Hi all So I have recently changed the injectors in my 04 viano due to it not starting, black death on injector 3. All went well I thought however the replacement second hand injectors although seemed to work the van was kicking out lots of black smoke and running poorly. Do injectors need to be programmed? Next I have noticed a lot of water outside on the floor left side if you were sitting in the van, and also passenger side foot well (uk). The water feels slick like not just plain water too. I've heard horror stories of piercing the water jacket, would this cause water to leak like this, inside and outside the van. Now assuming it is a pierced water jacket is there a way to repair it in situ, I have read about jb weld, can someone explain exactly what to do. This van isn't worth spending the money on so sending to a MB garage is not really a option.