View Poll Results: Has anyone had this same type of problem?
Voters: 32. You may not vote on this poll
48-volt battery
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Joined: May 2018
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From: Boise
2024 GMC Canyon Denali..... 2018 Audi SQ5
The AMG battery is spec’d at 1 kWh vs the GLE 450 was .9 kWh so they may be a different number.
Senior Member
Joined: May 2021
Posts: 338
Likes: 101
From: Shaker Heights, Ohio
2021 E450 All Terrain Wagon
Senior Member
Joined: Jun 2011
Posts: 356
Likes: 103
2021 GLE 450
Yes, I just checked my exchange invoice where the dealer switched out my battery and it was the same number as Ron’s posted number on his warranty invoice. Thanks for posting that for everyone Ron!
Toban
Toban
Senior Member
Joined: Jun 2011
Posts: 356
Likes: 103
2021 GLE 450
Just had a call from my dealer as a point of interest, they replaced 2 - 48 volt batteries on a 2021 E450 and a GLE 450. Both batteries were the OLD batteries that were replaced with the NEW battery.
Toban
Toban
Member
Joined: Apr 2021
Posts: 218
Likes: 85
From: Florida
2021 GLE 450
The alternator generates AC current that is converted to DC current via the rectifiers to charge the 12V battery. You can not convert DC power from one voltage to another via a transformer as you do with AC. The DC current must be converted through an inverter [Square wave generator] back to AC transformed to 48 VAC and then through a rectifier back to 48VDC. There could be a malfunction in the second conversion and that would cause repeated battery failures by not recharging them properly.
Last edited by kvelez; Aug 6, 2021 at 04:48 PM.
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Newbie
Joined: Jul 2021
Posts: 2
Likes: 1
Audi RS 5
In addition, automakers are also adding tons of new infotainment options and auxiliary safety systems (adaptive cruise control, lane-keeping system, blind-spot monitoring system) to the car. Plus, you have heated seats, a steering wheel, and a windshield. Needless to say that standard 12-volt methods are on the verge of exhaustion. Just at this point, 48-volt systems are activated to help meet the need for additional onboard power. Some, for example, use a 48-volt battery to power the electric anti-roll bar system for better handling, while others use it to control the electric supercharger. I've also heard that you should contact gordonpowers.com.au for breakdowns.
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Joined: Oct 2009
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Likes: 2,198
From: Colorado
'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
I took my GLE in for a new windshield this week, and asked the Service Manager about 48v batteries.
He said they have seen a few, and that every one happened soon after they were delivered, and in every case there has been no recurrence of 48v problems.
He also said that the Battery Management System is updated with OTA updates, and that he would check to see if mine had the latest update.
He is a reliable source, and I trust him.
BTW I have 7,000 miles on the 53. Built 3/21.
He said they have seen a few, and that every one happened soon after they were delivered, and in every case there has been no recurrence of 48v problems.
He also said that the Battery Management System is updated with OTA updates, and that he would check to see if mine had the latest update.
He is a reliable source, and I trust him.
BTW I have 7,000 miles on the 53. Built 3/21.
Last edited by mikapen; Aug 14, 2021 at 06:39 PM. Reason: Add mileage
Senior Member
Joined: May 2021
Posts: 338
Likes: 101
From: Shaker Heights, Ohio
2021 E450 All Terrain Wagon
I took my GLE in for a new windshield this week, and asked the Service Manager about 48v batteries.
He said they have seen a few, and that every one happened soon after they were delivered, and in every case there has been no recurrence of 48v problems.
He also said that the Battery Management System is updated with OTA updates, and that he would check to see if mine had the latest update.
He is a reliable source, and I trust him.
He said they have seen a few, and that every one happened soon after they were delivered, and in every case there has been no recurrence of 48v problems.
He also said that the Battery Management System is updated with OTA updates, and that he would check to see if mine had the latest update.
He is a reliable source, and I trust him.
Junior Member
Joined: Mar 2021
Posts: 17
Likes: 12
From: North Carolina
2014 BMW 535d, 2021 GLE 450
This straight up sucks. Less than 2 weeks ago I had a check engine light which was a EVAP leak and now it seems I have the same battery issue that seems to be plaguing these GLE's. Go out this afternoon to start the car to go to the store and nothing....just nothing but that notice. I tried to see if there was anything I could do but since it's in my garage and no way to get a car over to it and you can get it in neutral or the electronic parking break off I couldn't push it out to even see if jumpstarting it is a thing. I don't have the patience tonight to wait up all night for a tow truck so will do it tomorrow. The last time I had the vehicle looked at they said there is a month long wait for a loaner...I better hear a different tune this time since it's a much worse issue where it just doesn't start but I'm doubtful. I still want to be positive so I'll let even know if it is the battery or if it's something else. If it is I'll let everyone know what the process is like for me as well...What a hot topic...Oh yeah for a bit on context. My GLE 450 was built on May 17th of 2021 and delivered on May 28th to NC. I have 3200 miles on it already so it's better than some I guess but not what I expect.
Last edited by Money Bagz; Aug 17, 2021 at 09:30 PM.
Senior Member
Joined: Apr 2021
Posts: 282
Likes: 64
From: California
2021 GLE450
This straight up sucks. Less than 2 weeks ago I had a check engine light which was a EVAP leak and now it seems I have the same battery issue that seems to be plaguing these GLE's. Go out this afternoon to start the car to go to the store and nothing....just nothing but that notice. I tried to see if there was anything I could do but since it's in my garage and no way to get a car over to it and you can get it in neutral or the electronic parking break off I couldn't push it out to even see if jumpstarting it is a thing. I don't have the patience tonight to wait up all night for a tow truck so will do it tomorrow. The last time I had the vehicle looked at they said there is a month long wait for a loaner...I better hear a different tune this time since it's a much worse issue where it just doesn't start but I'm doubtful. I still want to be positive so I'll let even know if it is the battery or if it's something else. If it is I'll let everyone know what the process is like for me as well...What a hot topic...Oh yeah for a bit on context. My GLE 450 was built on May 17th of 2021 and delivered on May 28th to NC. I have 3200 miles on it already so it's better than some I guess but not what I expect.
Senior Member
Joined: May 2021
Posts: 338
Likes: 101
From: Shaker Heights, Ohio
2021 E450 All Terrain Wagon
This straight up sucks. Less than 2 weeks ago I had a check engine light which was a EVAP leak and now it seems I have the same battery issue that seems to be plaguing these GLE's. Go out this afternoon to start the car to go to the store and nothing....just nothing but that notice. I tried to see if there was anything I could do but since it's in my garage and no way to get a car over to it and you can get it in neutral or the electronic parking break off I couldn't push it out to even see if jumpstarting it is a thing. I don't have the patience tonight to wait up all night for a tow truck so will do it tomorrow. The last time I had the vehicle looked at they said there is a month long wait for a loaner...I better hear a different tune this time since it's a much worse issue where it just doesn't start but I'm doubtful. I still want to be positive so I'll let even know if it is the battery or if it's something else. If it is I'll let everyone know what the process is like for me as well...What a hot topic...Oh yeah for a bit on context. My GLE 450 was built on May 17th of 2021 and delivered on May 28th to NC. I have 3200 miles on it already so it's better than some I guess but not what I expect.
Last edited by Longroof45; Aug 18, 2021 at 05:20 PM. Reason: Additional Thought
MBWorld Fanatic!
Joined: Jul 2003
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From: Lake Oswego, OR
2020 GLE 450; 2023 BMW M2 Coupe
48V battery removal
Newbie
Joined: Aug 2021
Posts: 1
Likes: 0
2021 G63 AMG, 2021 GLE 63s, 2021 S580
Brand new 2021 GLE 63s - same issue
On Sunday I tried to start my 2021 GLE 63s - it wouldn’t start & I received the same warning that many of you have. It had to be drug out of my garage & put on a flatbed. They said it is the 48 volt or the wires that connect it. (Sorry not a car expert). I wish I had looked inside the door @ my exact build date. I picked my car up in late July. They are ordering parts from Germany, as they had to for many of you. Probably without the car for several more weeks.
Reading this thread has given me some great info & insight, so thank you all! I love the car - great mix of power & luxury. Hoping I get it back before the new car smell is gone.
Member
Joined: Apr 2021
Posts: 218
Likes: 85
From: Florida
2021 GLE 450
On Sunday I tried to start my 2021 GLE 63s - it wouldn’t start & I received the same warning that many of you have. It had to be drug out of my garage & put on a flatbed. They said it is the 48 volt or the wires that connect it. (Sorry not a car expert). I wish I had looked inside the door @ my exact build date. I picked my car up in late July. They are ordering parts from Germany, as they had to for many of you. Probably without the car for several more weeks. Reading this thread has given me some great info & insight, so thank you all! I love the car - great mix of power & luxury. Hoping I get it back before the new car smell is gone.
Member
Joined: May 2015
Posts: 129
Likes: 20
From: Florida
2025 Porsche Cayenne S Hybrid + 2023 EQS 580 SUV
Newbie
Joined: Aug 2021
Posts: 2
Likes: 0
AMG GLE53
Hi everyone. I’m in Canada and I’m also having the 48 volt battery issue with my 2021 Gle53. Took delivery of the car in February and it has just over 12,000 km. Issue started last week Tuesday the 10th, car wouldn’t start for over an hour. Just before dragging it onto the tow truck it started. I drove directly to the dealership. After three days of diagnostics, Mercedes said change 48 volt battery. Battery is on back order, no idea when it will arrive. Call my dealership today for an update, the service manager informed me the battery is on order and they’re putting the car back together so I can drive it until the battery arrives. I told him I don’t think that would be a good idea. Any input will be appreciated. Thanks for all the info already in the treads
Last edited by supadex; Aug 20, 2021 at 10:35 AM.
Senior Member
Joined: May 2021
Posts: 338
Likes: 101
From: Shaker Heights, Ohio
2021 E450 All Terrain Wagon
Hi everyone. I’m in Canada and I’m also having the 48 volt battery issue with my 2021 Gle53. Took delivery of the car in February and it has just over 12,000 km. Issue started last week Tuesday the 10th, car wouldn’t start for over an hour. Just before dragging it onto the tow truck it started. I drove directly to the dealership. After three days of diagnostics, Mercedes said change 48 volt battery. Battery is on back order, no idea when it will arrive. Call my dealership today for an update, the service manager informed me the battery is on order and they’re putting the car back together so I can drive it until the battery arrives. I told him I don’t think that would be a good idea. Any input will be appreciated. Thanks for all the info already in the treads
Newbie
Joined: Aug 2021
Posts: 2
Likes: 0
AMG GLE53
The strange thing is the service tech said it’s a possibility the issue will repeat itself at anytime without warning. Now My concerned is, do I want to take that risk or just leave the car at the dealership until the battery is changed.
