S63 AMG 4MATIC Coupe, S65 AMG Coupe (C217), Convert. (A217) 2014 -2021

S63 cabriolet battery

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Old Mar 12, 2025 | 01:36 PM
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2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
S63 cabriolet battery

It would be $2300 to replace that battery. It requires a modified battery tray tube and bracket. The updated lithium ion battery is a slightly different size. That’s why it requires the mod.
From my mechanic. Anyone else know of a battery option that would be less hassle?
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Old Mar 12, 2025 | 02:29 PM
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2014 S63 2010 ML350 Bluetec 2009 SL550
Benz Ninja can code the car to charge a normal AGM battery - will save you $2k. Many of us have already made the swap on our S63s.
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Old Mar 12, 2025 | 03:08 PM
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2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
Thx. Can you tell me what agm battery to look for. I use benzninja already.
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Old Mar 12, 2025 | 03:27 PM
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2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
Can you tell me where battery is? Trunk won’t work with dead battery. Tried to charge but still dead. Thx
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Old Mar 12, 2025 | 07:06 PM
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Originally Posted by theboogers
Can you tell me where battery is? Trunk won’t work with dead battery. Tried to charge but still dead. Thx
Scan the rescue card QR code and it will display the location of all the batteries.
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Old Mar 12, 2025 | 07:07 PM
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Or throw you VIN here: https://rk.mb-qr.com/en/
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Old Mar 12, 2025 | 07:08 PM
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This might be the rescue card that corresponds to your model: https://rk.mb-qr.com/en/217.4/
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Old Mar 12, 2025 | 07:22 PM
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From: Carefree az usa
2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
found this on line. Says s63 coupe is behind front of trunk. Took apart most of the panels. Still not to the battery to measure it.
talked to Peter at Benzninja and he say he can code for regular battery instead of lithium battery.
car is completely dead and won’t take a charge.
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Old Mar 15, 2025 | 08:28 PM
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From: Carefree az usa
2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
Update
Battery acted dead and wouldn’t charge with mercedes c-tek or digital battery charger. Neither was l-ion battery charger. Might of made a difference. Battery wouldn’t wake up.
The battery is located in same place as coupe. Front of trunk left of center. Replaced with regular mercedes battery and had Peter Benzninja code for non l-ion battery. Wondering if i can wake up l-ion battery and still charge. Battery was original from 5/2018.
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Old Mar 15, 2025 | 09:10 PM
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From: unbegrenzt
2017 GLE350 4MATIC
2019-2021 Cayenne uses an LiFePO4 battery with electronic BMS system which fails and a switch or breaker disconnects the BMS from the actual battery, causing the appearance of a totally dead battery that won't take a charge.

A procedure (I don't know how to do it) exists to re-close the switch and the battery is back to normal, assuming no damage was done.

Chances are at least average that your Li battery is fine and it is the BMS switch that popped open due to low voltage or the BMS has failed. In the Porsche world there are third party sources that can either replace the BMS or reset the switch. I searched and didn't find one for MB.
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Old Mar 15, 2025 | 09:16 PM
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From: Carefree az usa
2020 S560,14 ml350, 03 sl55, silver, pano, slr cams, evo headers, lsd, 2019 s63 cab.
How long should a l-ion battery last?
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