M112 engine humming noise when cold
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01-18-2002, 11:54 PM
Just a guy
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
My Aunt has a 2002 C240 Automatic, Classic.
Her car does the same thing. It's a "rrrrr-rrrrr" sound? She took it in, and the C240 loaner they gave her did it too!
1998 C230 "Black Betty"
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