Check 48volt Battery Charge Level?
Thread Starter
Super Member
Joined: Oct 2005
Posts: 997
Likes: 260
From: Frisco Colorado, USA
2024 GLB35 AMG, 2020 S560 Coupe
Check 48volt Battery Charge Level?
Anyone on this forum know how to check the state of charge of the 48volt battery on a GLB35? I know how to do this on my CLS53 (no MBUX) on my previous GKE53 with MBUX but those procedures do not work on my GLB35. Thank you.
MBWorld God!
Joined: Dec 2019
Posts: 32,513
Likes: 6,348
Thread Starter
Super Member
Joined: Oct 2005
Posts: 997
Likes: 260
From: Frisco Colorado, USA
2024 GLB35 AMG, 2020 S560 Coupe
Excellent! A great Christmas gift.Thank you. Here is the procedure...
Turn ignition to position 1
Wait for all displays to complete
Press HOME and go to "Classical" display (others may work)
Scroll until the center screen displays vehicle miles (km) and trip miles (km)
Press and hold the HOME button for 10 seconds, then release
Press and hold OK for 10 seconds, then release
Press once the HOME button
"Workshop" display should be an option
Press OK to select "Workshop"
The "Workshop" menu should appear in the center windo
Scroll if necessary to "Vehicle Data"
Press OK to select
12 volt battery status should be shown
scroll down to see 48 volt battery status
With the ignition still in position 1, voltage and current will show "0"
Turn ignition to position 2 and start the engine. % charge will be shown
To exit press HOME and select the desired display...
As with my previous experience with MB's 48 volt system (CLS53 & GLE53), charging the 12 volt battery with a charger connected to the charging terminals in the engine compartment does NOT add charge to the 48 volt battery. It is only charged when the engine is running, including idling.
Turn ignition to position 1
Wait for all displays to complete
Press HOME and go to "Classical" display (others may work)
Scroll until the center screen displays vehicle miles (km) and trip miles (km)
Press and hold the HOME button for 10 seconds, then release
Press and hold OK for 10 seconds, then release
Press once the HOME button
"Workshop" display should be an option
Press OK to select "Workshop"
The "Workshop" menu should appear in the center windo
Scroll if necessary to "Vehicle Data"
Press OK to select
12 volt battery status should be shown
scroll down to see 48 volt battery status
With the ignition still in position 1, voltage and current will show "0"
Turn ignition to position 2 and start the engine. % charge will be shown
To exit press HOME and select the desired display...
As with my previous experience with MB's 48 volt system (CLS53 & GLE53), charging the 12 volt battery with a charger connected to the charging terminals in the engine compartment does NOT add charge to the 48 volt battery. It is only charged when the engine is running, including idling.
Last edited by slk55er; Dec 25, 2024 at 02:53 PM.
MBWorld God!
Joined: Dec 2019
Posts: 32,513
Likes: 6,348
Excellent! A great Christmas gift.Thank you. Here is the procedure...
Turn ignition to position 1
Wait for all displays to complete
Press HOME and go to "Classical" display (others may work)
Scroll until the center screen displays vehicle miles (km) and trip miles (km)
Press and hold the HOME button for 10 seconds, then release
Press and hold OK for 10 seconds, then release
Press once the HOME button
"Workshop" display should be an option
Press OK to select "Workshop"
The "Workshop" menu should appear in the center windo
Scroll if necessary to "Vehicle Data"
Press OK to select
12 volt battery status should be shown
scroll down to see 48 volt battery status
With the ignition still in position 1, voltage and current will show "0"
Turn ignition to position 2 and start the engine. % charge will be shown
To exit press HOME and select the desired display...
As with my previous experience with MB's 48 volt system (CLS53 & GLE53), charging the 12 volt battery with a charger connected to the charging terminals in the engine compartment does NOT add charge to the 48 volt battery. It is only charged when the engine is running, including idling.
Turn ignition to position 1
Wait for all displays to complete
Press HOME and go to "Classical" display (others may work)
Scroll until the center screen displays vehicle miles (km) and trip miles (km)
Press and hold the HOME button for 10 seconds, then release
Press and hold OK for 10 seconds, then release
Press once the HOME button
"Workshop" display should be an option
Press OK to select "Workshop"
The "Workshop" menu should appear in the center windo
Scroll if necessary to "Vehicle Data"
Press OK to select
12 volt battery status should be shown
scroll down to see 48 volt battery status
With the ignition still in position 1, voltage and current will show "0"
Turn ignition to position 2 and start the engine. % charge will be shown
To exit press HOME and select the desired display...
As with my previous experience with MB's 48 volt system (CLS53 & GLE53), charging the 12 volt battery with a charger connected to the charging terminals in the engine compartment does NOT add charge to the 48 volt battery. It is only charged when the engine is running, including idling.
