Brian, sorry but you'll have to slow down a bit for me. One aspect of this car I don't know much about is one I have to face now: the vacuum systems. I read your post about cleaning out the hood of your 300SD several weeks ago but I didn't actually realize then it was related to what I had planned to do later (today). So tell me, what are these 3/2 valves everyone is talking about? Are they the valves inside the black plastic box on top of the valve cover? Those are the valves I just replaced. I'm not informed on how all that stuff works either. But I will learn slowly. 
__________________
1999 Mercedes-Benz S600, 103K miles - garage queen
1988 Mercedes-Benz 560SEL, 89K miles - daily driver
2007 Hyundai Sonata Limited, 31K - daily driver
|