Can anyone tell me if I can use a mono valve from another (as in older and cheaper) 300D? I'm wondering if the heating problem i'm having will be cured with a new valve. But I can not put a rebuild kit in mine. ( because there isn't one made for this year.) Are the hose sizes different or the impedence of these solnoids. With an engine temp of 90 there should be lots of heat in the cabin. The fan is running fine in auto and man. Max temp set and still the windows are fogging up! Thank goodness for seat warmers!!!!!!

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Don
87 300D
485k km