My '80 wagon was gushing brownish fluids around the heater servo, so I took it to my mechanic and he quickly (without really looking at the unit) told me that it was cracked and the replacement part would be $1600+. I've been planning to sell this wagon so I could focus on my w115, so this came as a vexing shock to me. I removed the unit as best as I could (given that I've never done any work like this before) and I'm trying to figure out:

A) if the unit can be salvaged/what might be the problem. I don't see any obvious cracks, just some gaps and some rubber/putty? in a few spots.

B) if I should try to find another servo at a salvage yard.

C) ?


Also, obviously, there's a rust issue somewhere and the unit could use some cleaning. Should I remove the lower unit and clean it out? Any help would greatly appreciated. I'm new to this stuff.

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