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Old 08-23-2001, 06:25 PM
JimSmith JimSmith is offline
Join Date: Jul 2001
Location: Old Lyme, Connecticut
Posts: 3,596
How to use MB Radiator Flush Powder

I read in a thread recently that the Merceds-Benz radiator flushing chemicals were considered particularly effective, so I bought some today while at the dealer. My 1982 240D coolant mixture is looking like it carrying some extra stuff in there and the average temperature is about 5 to 10 degrees Celsius hotter than it used to be. Used to be the needle seemed to hit an ivisible peg at around 82 degrees C. Anyway, I thought I pick some stuff up and try it. It is a little bottle of powder, and it comes with no instructions. Has anyone out there used this stuff and have some experience to share? do you just add it to the coolant, or do you drain the coolant, flush with tap water and then fill it with this stuff and run the engine for a while? How long? Thanks for the help, Jim
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)
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