Thanks Mercedesman. One question though. How do you remove the green modulator valve? It looks like it will be awful hard to get to. Does it screw out? Would you suggest replacing the valve with a new one while I am at it. A new valve is $35.00.

Thanks for your advice.

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Bruce

73 220D (never left Germany)
81 300D (totaled)
84 300D (Purchased '03, sold '17)
85 300SD (purchased 10/01/03)