Near engine overheating gauge
I have a 2007 Winnebago View 23J, mini motor home (Class C) with a Mercedes-Benz 2.7-liter, five-cylinder, turbo-diesel engine.
My overheat gauge is anywhere from 200 to 250, it doesn’t hit the red zone unless it’s over 100° out, I live in St. George Utah; any ideas or tips on how to remedy this problem.
The radiator seems to be working fine as well as the fan and coolant, might I need a new radiator or a bigger radiator to fix this problem???
Any ideas would be greatly appreciated!!😊🙏
If it’s working fine at lower temperatures and holding the proper engine temp (do you know what that is supposed to be?) then presumably you’re correct and the system is working relatively well.
Aside from a coolant flush, if it’s original coolant it is very likely done for and may have a lower boiling point. Is it puking coolant at all? Have you had to add coolant? Do you know what the right coolant is? Has it been mixed with the wrong stuff?
if you don’t know any of these answers and suspect it being 10 years or older, it needs a coolant flush anyways.
Thermoatat radiator and water pump have to be fine if it holds proper temp under but cooler conditions.
is the rad stack full of bugs or ____ and needs cleaned/washed?How do you know the fan(s) are working properly? Can you hear it/them kick in or get louder when the temp goes up?
If electric fans and if similar to my old mid 2000s Diamler car, the fans have several stages. And you wouldn’t know if they were working properly without testing their operation.
Lots of things to consider. Dirty rad stack is free and easy. Coolant flush is needed anyway. Electric fan(s) malfunction is likely the issue.I’m looking at that as one possibility
thank you
