2011 GL550 shows overheating
MBWorld Fanatic!
Joined: Jun 2010
Posts: 2,762
Likes: 630
From: Emmett, ID, USA
2007 GL450
So at sea level, a boiling pan of water would just begin to show opening.
How that translates to temperature stability depends on the rate at which the coolant is being moved, the rate at which heat is being pushed into the coolant, and the rate at which the radiator sheds heat to the environment.
If the pumping is fast, the heat rate is low, and the radiator is big and/or the ambient temperature is low, the coolant temperature will remain very close to the initial opening temperature.
If you heated oil on the stove, you could figure out the temperature at which the thermostat is fully open.
Thread Starter
Super Member
Joined: Jul 2016
Posts: 706
Likes: 129
From: NE OHIO
1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
stat testing
I did not test the new stat and sure wish I would have put them both in the pan together… back in the 70’s that’s what we would do to get the fastest opening 160 stat. Already had the gl put together when I thought of this!
Thread Starter
Super Member
Joined: Jul 2016
Posts: 706
Likes: 129
From: NE OHIO
1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
Summary
The GL can idle now with AC on and not climb with crazy temps. The fan will stay within reason of 25%-35% and keep a nice 90-95 C sitting in the drive with 75F ambient INSTEAD of going over temp or at least saying it is?? Will post if and when the weather gets warmer but I happy and driving again even if I have my trusry IcarSoft hooked showing temps !
Thread Starter
Super Member
Joined: Jul 2016
Posts: 706
Likes: 129
From: NE OHIO
1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
thermostat
