Just recently purchased a [12kmilage used] 2011 C300 sport 4-Matic. In normal driving the temp gauge indicates a tick above the 80C mark. Location - Northern VA - DEC ambient temp in the 40s- 50s. Is this normal operating temp for the C300??

I ask this cause my 97 c230 stays below 80 mark on cold days till really warmed up and usually never exceeds the 80 mark > unless in the infamous beltway madness.

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Kim Langley
97 C-230
80 911 SC
73 2002Tii

That car has a 87-90C thermostat, so sounds like you are seeing normal temps.

The 1997 car should be slightly above 80C as well.

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MERCEDES Benz Master Guild Technician (6 TIMES)
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All my MBs, including my 97C and my 08C run slightly above 80 in normal operation

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former: 83 300D, 97 C230, 93 400E

current: 08 C300 Luxury , 92 500SL