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user removed · 01-29-2014, 11:02 AM

Mercedes service bulletin said 256 degrees with proper anitfreeze mixture. That being said, I would not want to see over 220 myself. Long grade climbs will make your temp peak, maybe a little less grille block.

regards
Mech

01-29-2014, 11:02 AM	#5 (permalink)
user removed Master EcoModder Join Date: Sep 2009 Posts: 5,927 Thanks: 877 Thanked 2,024 Times in 1,304 Posts	Mercedes service bulletin said 256 degrees with proper anitfreeze mixture. That being said, I would not want to see over 220 myself. Long grade climbs will make your temp peak, maybe a little less grille block. regards Mech