Thread: Green Coolant
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Old 12-11-2003, 07:58 AM
speedy300Dturbo speedy300Dturbo is offline
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Join Date: Jan 2001
Location: California
Posts: 2,068
If you're going to drain the radiator and block, you can't just add the coolant in - you should flush the system first. Prestone radiator flush should work fine, and although Mercedes makes their own citric acid flush, I don't think it's 100% necessary to use that exact product.

Mercedes coolant runs about $9 a gallon. I think Zerex G-05 is a bit cheaper.
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