Again I want to thank everyone for their imput on this problem, but you really start to get mixed up with the different tubes, I will find out next week when I pull the valve cover on the MB. again thank you all for your kind help and anyother imput would also be great for me and many others with this same problem. I am really surprised that MB did not issue a recall to correct this problem on their automobiles since they knew about the problem all along?? Oh well that is big business for you. Ben