I did buy the thermostat at the MB dealer, so I assume it is what it's supposed to be. I said 82C based not on knowledge, but on the observation that my gauge registers around 82C in this fall driving weather (around 70F to 85F)
I believe the gauge to be correct because the high speed fans would come on at the proper time prior to putting in my mod.
Anyway, thanks for the correction.
92 300E - 116K miles - Sold
77 Euro 350SL - 67k miles
94 Explorer 147k miles
2009 Hyundai Genesis - 65k miles