Engine temperature
#2
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Join Date: Jan 2014
Location: Chicago, IL
Posts: 247
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2015 - GL 550
It is normal and being summer with AC On the degrees would be +3/4 extra, and in winter it would be -3/4 degree lesser.
If you see the temp over 98 then its a concern because the water would boil at 99.
But 95-97 is normal and you should be fine.
If you see the temp over 98 then its a concern because the water would boil at 99.
But 95-97 is normal and you should be fine.
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Lapsykoz (08-13-2017)
#3
Super Member
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Temp gauge
I have a ML350 and it runs the same. Asked the dealer about it and they said it was normal. Not same car or engine but I think you are OK
#4
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Join Date: Jun 2015
Location: Greenville Delaware
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2015 GL 550
Still, your point is valid ... the temperature of the coolant should stay below the boiling point of pure water at normal atmospheric pressure, which is 100º C to be on the safe side.
#7
Senior Member
My 2015 GL 350 runs at the same temp.......winter......summer........all the time. It's been that way since new and I'm at 47k miles now.