I've replaced three sets of those d*mn PCV hoses on three 95 E300s over the past few years, and on every one, the base of #35 broke off into the valve cover. Two times I was able to fish out the pieces, but on the last, I took off the valve cover to get the stupid pieces out. All were hard as rock, so do whatever it takes to keep the fragments of #35 out of that hole.

Good luck, Dave