Engine temperature - MBWorld.org Forums

Aug 12, 2017 | 09:15 AM

Lapsykoz

Thread Starter

Newbie

Joined: Aug 2017

Posts: 4

Likes: 0

GL 500 x166

Engine temperature

Hi i have a GL 500 x166,
The tempeature is like 92 / 95 degrees.
Is it nornal?

[ATT

ACH]410966[/ATTACH]

Thank you

Aug 13, 2017 | 04:16 PM

Dreamszalone

Member

Joined: Jan 2014

Posts: 247

Likes: 17

From: Chicago, IL

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.

Aug 14, 2017 | 10:19 PM

Isawelvis

Super Member

Joined: Apr 2016

Posts: 889

Likes: 148

From: Southern Illinois

, 2023 BMW X4, 1991 190E

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

Aug 15, 2017 | 08:26 PM

SaniDel

Member

Joined: Jun 2015

Posts: 162

Likes: 11

From: Greenville Delaware

2015 GL 550

Quote:

Originally Posted by Dreamszalone

<snip>

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.

I would think there's a bit more "headroom" before worrying about boiling. Cooling systems are pressurized, which raises the temperature required for the coolant to boil. Also, the antifreeze added to the coolant raises the boiling point.

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.