Even so.....it shouldn't be reaching 90-100C with even an 87C T-stat.

Why the two offerings? Is one better than the other?

My car was only running at around 65C when I got it so I replaced the T-stat and now it runs around 80-82 in normal driving.....

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

Drive down here and it'll run that hot.

Thermos begin to open at the designated temperature, they're not fully open then.

I had the 87, my fan clutch ALWAYS seemed on when it was even remotely warm out, makes a slow car even worse. Put in the 79, I much prefer it... I still have clean oil and reach plenty hot temps.

I have new water pump, Xerex coolant, new Behr rad, etc. No issues w/ my cooling system.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]