Hello All,
I'm new to SLK ownership. I bought a 2013 SLK 250 with 65k miles on it.
I noticed that the temperature gauge or needle stay around 90 degree, between 80 and 100. On highway the needle move up to 120 until the fan kick in.

Any ideas or suggestion to what is wrong?

Is a way to reset the temperature?

I did the oil and filter change, air filter change, flush and replaced with MB coolant from dealer.

Any suggestions is greatly appreciated

Thank You,
Chrouy

As you can see the needle is around 90est

Sounds like a couple of things. First let’s check the coolant level as there could be a leak.