same story for me. Today in stop/go traffic, about 92 degrees outside, temp guage hit 100... as soon as I start cruising, drops slightly below midpoint.. I run water wetter also...

Who else does this... I park in the garage and raise the hood so the engine can cool off faster...

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Mark Herzig
1995 E300D 153K
1985 300D 142K (sold)
1979 450SL 122 miles (sold)
1992 500E 127K (sold)
1987 300SDL 132K (sold)
1986 300E 161K (sold)