oil or water

I have a 08 200cdi, and have trouble with oil and water leakage.. see the atteched picture.. The water comes from the box to the right in the picture (what is that box actually, and where can I get gasket? ? The oil leak comes from under the oil filter, it goes a hose from down under and to...

In the winter, my e280 accumulates an oil/water emulsion inside the oil filler cap. This is the second winter that I have owned the car, and it is just as bad if not worse than last winter. Is this an unavoidable (and non-damaging) side effect of cold weather and short journeys, or does it...

Does anyone know how this works .? It is bolted to the side of the filter housing to supposedly transfer heat from the oil to the water. But i don;t see why it only has one pipe which goes into the front of the block. Does it heat the water and the water just forces itself into the block >...