E-Class (W212) 2010 - 2016: E 350, E 550
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E300 hybrid p0A8000 code

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Old Dec 3, 2025 | 07:35 PM
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E300 hybrid
E300 hybrid p0A8000 code

Hey guys, joined hoping for some help with my e300 hybrid !!

im thinking that maybe the bms may need the counter reset?

the battery is working fine, it regens, goes into electric and back out fine,

instead of spending a fortune on a whole new battery can someone tell me if the bms is easily reset? I’ve attached some of the fault codes to show the difficulties I’m having

thanks guys, I’m James BTW 🤓



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Old Dec 4, 2025 | 10:45 AM
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From: MBworld
bone stock E55 AMG
moved to W212 forum...
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Old Dec 4, 2025 | 02:34 PM
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W212 MY'14 M276-3.5NA @75kMi
Good luck

The battery life is set to expire so it does not get to overheat on high internal resistance to burn down your vehicle + house.

Bypassing the expiration safety is not safe to ignore.

I do understand battery seems to be working great as of now and MB want $20k for it - That's what you're dealing with.

Last edited by CaliBenzDriver; Dec 4, 2025 at 03:46 PM.
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Old Dec 4, 2025 | 11:58 PM
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Try to read this : https://en.mercedesassistance.com/me...-not-starting/
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