It was running at about 105c maybe when it died. also the guy at the MB dealership thought it might be a bottem end problem but it didn't sound like any low end knock I have ever heard. But the longer the car ran and the warmer it got the louder the knock got the oil was changed last thursday by another MB dealership. It has good pressure and the first thing I checked when it died was the oil it is black and there in enought of it. there was no water in it. it was running with the knock and it didn't seem to lack power but I was not really trying to push it, since I would like to not ruin the motor. The thing I was really worried about is all the smoke is that just from unburnt gas? If it just got hot what do I need to check and replace other than oil? I think the heads is fine.

Thanks

Brian