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mcoleman · 07-02-2003, 06:38 PM

You may need a new thermostat. Is your coolamt mixture too strong on antifreeze? 50/50 works best for freeze protection and engine cooling efficiency. High concentrations of antifreeze in the coolant does not cool as efficient as that with the proper mix. When was the last time your coolant was changed?
Mine runs right where it should (just below the 80 c mark)right about 75 C. It will climb to 90 C if I am driving it hard up some of the canyon roads on a very hot day (95 + F)with the A/C running.

07-02-2003, 06:38 PM	#5 (permalink)
mcoleman BenzWorld Junior Member Date registered: May 2003 Vehicle: 1987Mercedes 560 SEC Location: Salt Lake City, Utah Posts: 6	You may need a new thermostat. Is your coolamt mixture too strong on antifreeze? 50/50 wor... You may need a new thermostat. Is your coolamt mixture too strong on antifreeze? 50/50 works best for freeze protection and engine cooling efficiency. High concentrations of antifreeze in the coolant does not cool as efficient as that with the proper mix. When was the last time your coolant was changed? Mine runs right where it should (just below the 80 c mark)right about 75 C. It will climb to 90 C if I am driving it hard up some of the canyon roads on a very hot day (95 + F)with the A/C running.