It has been determined that My 1976 300D is leaking Diesel from inside the head near the pre-chamber. We are looking at the seals being the culprit. I was told there is a special tool needed to remove the injector from the pre-chamber or head. I also heard that this tool is not manufactured my MB any more. Where can I find this tool or substitute??? It is not a big deal that I fix the leak, but I just notice the leak when I look at my fuel gauge, especially after traveling on trips 30 min+. I also have a wet left rear floorboard, heard there is a drain in the wheel well that needs to be drained?????????? What is this all about?