Cooling System Malfunction
MBWorld God!
Joined: Dec 2019
Posts: 32,471
Likes: 6,342
Newbie
Joined: Oct 2023
Posts: 8
Likes: 5
GLE450
I'd share this with your dealer: "the field engineer upon analysis on data collected determined there was insufficient flow of amperage supplied from the 48v Battery, and ultimately this was not allowing the Coolant Pump to supply the needed amount of coolant in the cooling system, triggering codes"
This seemed to finally fix it.
This seemed to finally fix it.
MBWorld God!
Joined: Dec 2019
Posts: 32,471
Likes: 6,342
I'd share this with your dealer: "the field engineer upon analysis on data collected determined there was insufficient flow of amperage supplied from the 48v Battery, and ultimately this was not allowing the Coolant Pump to supply the needed amount of coolant in the cooling system, triggering codes"
This seemed to finally fix it.
This seemed to finally fix it.
Newbie
Joined: Jun 2025
Posts: 2
Likes: 0
hi everyone, i am currently driving the GLB35. collected the new vehicle just a month ago and had 3 instances of the above warning message. sent in the vehicle to the workshop after the warning message appeared twice. workshop checked for coolant leak and updated software. vehicle was deemed fit for release. however, i got the same warning the next morning.
when i suggested the above fix, they claimed that they had rectified the 48V battery issue before.
anyone still encountering this erratic warning message or tried other solutions? thanks!
when i suggested the above fix, they claimed that they had rectified the 48V battery issue before.
anyone still encountering this erratic warning message or tried other solutions? thanks!
Newbie
Joined: Jun 2025
Posts: 2
Likes: 0
hope your ride can be fixed soon!
