Thanks very much Arthur but I still do not get where the white hose line that you see in my top picture going only as far as the camshaft timing thing goes. Is it the linei at the very front most part of the diagram where "Y32" is written? Transparent/Blue I think. I can see the fuel rail dashpot going to the y-connector. It looks like it should be going into 128 check valve but I do not see a check valve on the front, or near the front of the throttle body.


The bottom picture shows the hooked line that points downward at the throttle body. I cannot see any more vacuum lines under the intake manifold. The clear line that is guiding it into the throttle body is my addition. It is pretty clear that it goes somewhere beneath the manifold.
Is it absolutely necessary to remove the manifold?

http://home.earthlink.net/~sasjzl/mercedesheadgasketreplacementjourney/


Thanks,
Jim Lee