marchgroupinc

Could there be different spec batteries for 6 and 8 cyl and new and old versions for both?

kvelez

Does anyone know why the front seat and console had to be removed to get to a battery that is in the back?

GeNomeZ

I just picked up mine and the new battery is also 000-982-67-14. Had the same codes as tony_cls63 invoice above.

Ron.s

The AMG battery is spec’d at 1 kWh vs the GLE 450 was .9 kWh so they may be a different number.

Longroof45

The old part number is Part No. 000-982-68-14.

toban

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

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

kvelez

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.

DorothyNorth

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.

mikapen

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.

Longroof45

I hope your Service Manager is on the money and that I'm just the exception that proves the rule. My first 48v died at 196 miles and my second at 731 miles. My third is still going strong at 1,900 miles and my fingers are crossed that three is the charm.

Money Bagz

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.

nextmilenium

Sorry to hear this. Please keep us updated and let us know how it gets resolved. It seems some 48V failures are fixed by just updating the software.

Longroof45

Sorry to hear but I. think 3,200 miles is way higher than most of the 48v failures we've seen here, so maybe it's just a software fix? Please let us know what you learn.

Longroof45

You probably know this already but it's not just GLE's. The problem runs across several model lines.

GregW / Oregon

Would be great to see a photo of the "battery compartment" opened up. It may extend under the passenger seat or so close that clearance is needed to get it out.

nikki_mercedes

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.

nextmilenium

Sorry to hear this! It seems this is a never ending story until MB finds a way to get it fixed for everyone.

Did your dealer give you an ETA for the part?

kvelez

Keep us posted when and how the issue is resolved so we can gain from the experience.

jcapotos

FYI - See attachment. It shows battery location for both batteries.

jcapotos

Here's a better image

supadex

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

BlueYonder

Do you have to remove the driver's seat to replace the 12V battery?

Longroof45

It's interesting that you actually did get your car started. When my batteries (yes, two of them) died, they were toast, and there was no getting the car re-started. It just sat until the dealer put in replacement batteries. There's something different about your situation I think, especially given the fact that the dealer wants and is able to put you back on the road while you wait for the new 48V. I know that the dealers have been trying things like sanding paint off the contact points and updating software, so perhaps that's what they're doing in the interim. It seems your situation is not as dire as some of the others that have been described here. Best of luck!

supadex

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.