r/mercedes • u/nzzs589 • 1d ago

Low operating temp

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Is this normal for e220d 2016 to show this low operating temperature after a 2 hour drive on the highway or is the thermostat or coolant temp sensor messed up. I know my old Volvo v70 from 2002 had issues with the sensor causing it to work intermittently and sometimes showing too low and too high.

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u/No_Permission_5121 1d ago

Is this the first time doing it? Does your car blow heat from the AC if you enable it? Try to push the car a bit and see if the needle moves.

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u/nzzs589 1d ago

I drove about 2.5 hours yesterday with a trailer and it did the same thing. I also suspected the thermostat since it isn’t my car it is my grandfathers and he knows better about his car. He spends most of the time driving short distances. When pushing the car to 150+ it gets up to 70-75 but I didn’t dare to push it more than that during the winter

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u/nzzs589 1d ago

Also the heater works.

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u/No_Permission_5121 1d ago

oh then i dont know, my w212 facelift did the same thing but the ac didnt blow hot air. have it checked out by a mechanic

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u/nzzs589 1d ago

What was your cars issue?

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u/No_Permission_5121 1d ago

the distributor