ILUVMILS, I'm struggling with your response--I have the exact same car with the exact same manual transmission, exact same issue--75K miles, original stat to my knowledge-No check engine light-(203.061/112.912)

Same very slow warm up-

By comparison, my 104 powered 124 has 40°+ in less than a mile really no matter the outside temp, which after having done the head, I realized the cooling jacket on the 104 is very tight. Additionally, my normally aspirated 606 powered 124 warms up faster than this C240?

So, is the 112 a cold hearted beast or is there really something else going on here?

Best,
G

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Mark
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THE WHITE FLEET
2016 GLE300d 4-MATIC 38K BROWN!
2012 S350 Bluetec==94k WHITE

2007 ML320 CDI==166K WHITE (FOR SALE)

Under new management:
2005 E320 CDI--140K--WHITE
1995 E300-Diesel-133.5K--THE CAR IS BLUE
1986 300SL--97.5K (European) AND WHITE. Back in Europe!
1991 190E 2.3-73K California Perfect.--WHITE
1995 E320-Wagon-159K--WHITE (recently scrapped)
1987 300D Turbo-213K--WHITE
1987 190D 2.5 Turbo-288K--WHITE