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Old 05-21-2002, 08:01 PM
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sixto sixto is offline
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,123
The M103 has a drain plug on the right/US passenger side under the exhaust manifolds. There's also a drain at the bottom of the radiator. It might help drain the heater core if you remove the monovalve. I don't know, it just occured to me...

Alon, is your mechanic a disciple of Rube Goldberg?

91 300SE
87 300SDL
81 300SD
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