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What does this coolant valve behind air filter do? 1980 W123 What does this coolant valve behind air filter do? 1980 W123
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Old 07-18-2025, 05:22 PM
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Join Date: Jun 2015
Location: Chattanooga TN
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What does this coolant valve behind air filter do? 1980 W123
While washing out the rust in the coolant pipes today, I discovered this valve behind the air filter. What is it supposed to do and should it be open or closed. I zip tied it open.
Mike
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