E-Class (W212) 2010 - 2016: E 350, E 550
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Old Oct 11, 2023 | 12:31 AM
  #1  
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Gcl 220d 2018
P0A8000

Hello

I have E300 blueteck hybrid.
No error in instruments cluster.
when i read errors in xentry i get this error
P0A8000 The hybrid/higt-voltage battery module must be replaced.
the car runs fine.
How can i delete this error without change the hybrid battery?

Thanks
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Old Oct 11, 2023 | 03:41 AM
  #2  
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W212 MY'14 M276-3.5NA @75kMi
$$$$ spare

Originally Posted by yiannossavva
Hello

I have E300 blueteck hybrid.
No error in instruments cluster.
when i read errors in xentry i get this error
P0A8000 The hybrid/higt-voltage battery module must be replaced.

the car runs fine.
How can i delete this error without change the hybrid battery?

Thanks
You have Xentry, the best tool!

Have you tried to reset the faulty module: yes/no ?
Any worthy hints in code settings criteria ?
How about troubleshooting steps?

Obviously the car is telling you it wans parts - You best bet is to gain knowledge about what causes that fault -

Personally I am not positively impressed with Benz electricals. They purposely build GND poorly to surge circuits.
Case in point the single main chassis-engine GND strap is located on the lowest undercarriage point, totally exposed without any cover protection, right near glowing hot catalytic exhaust. That clearly spells maximum heat and oxidative stress.

Less than half priced Japanese cars have dual redundant GND straps mounted high under the hood. The total opposite of W212 chassis.

You can expect something as simple as a factory painted GND to skew voltage measurement and disrupt a SAM power manager.

Perhaps you are graced with a short lived fake AUX module built with a couple FARAD CAPS. They get carbonized by power surges provided by poor grounds.
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Old Oct 11, 2023 | 04:25 AM
  #3  
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Gcl 220d 2018
I reset many times the error code, immediately the error comes buck.
I do all the test in (test) section in xentry, everything looks fine.
the hybrid battery looks works fine, but the error still there :-(
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Old Oct 11, 2023 | 04:37 AM
  #4  
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W212 MY'14 M276-3.5NA @75kMi
easy peasy

Originally Posted by yiannossavva
I reset many times the error code, immediately the error comes buck.
I do all the test in (test) section in xentry, everything looks fine.
the hybrid battery looks works fine, but the error still there :-(
You confirm Xentry alone is not smart....that's when it pays to know your tools.

"Code setting criteria" can provide understanding when resets are no joy.

@BenzNinja is an expert wizard that can diagnose your car remotely.
🤞
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Old Oct 11, 2023 | 05:08 AM
  #5  
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I can fix that
of course I can
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Old Oct 11, 2023 | 05:48 AM
  #6  
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Gcl 220d 2018
Ok i am willing to pay you if you want
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Old Oct 11, 2023 | 05:50 AM
  #7  
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Gcl 220d 2018
Originally Posted by BenzNinja
I can fix that
of course I can
good i can pay you for that
i have xentry, vediamo and monako. Its ok?

thanks
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Old Oct 11, 2023 | 12:34 PM
  #8  
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Originally Posted by yiannossavva
good i can pay you for that
i have xentry, vediamo and monako. Its ok?

thanks
Sure paying people for their work is better in general

pm send in a min
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Old Oct 5, 2024 | 09:05 AM
  #9  
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E300 W212
Originally Posted by yiannossavva
Ok i am willing to pay you if you want
Hi just wonder did you manage to reset your BMS POA8000 ?
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Old Oct 5, 2024 | 02:39 PM
  #10  
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Gcl 220d 2018
Originally Posted by takweMB
Hi just wonder did you manage to reset your BMS POA8000 ?
finally nobody can reset this error, you have to change the hybrid battery, in Cyprus cost 20,000euros!
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Old Oct 5, 2024 | 03:30 PM
  #11  
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W212 MY'14 M276-3.5NA @75kMi
Originally Posted by yiannossavva
finally nobody can reset this error, you have to change the hybrid battery, in Cyprus cost 20,000euros!
What are FAULT SETTING CRITERIA for this error???
Let's try to understand this fault to help you save 20.000€ for the wrong reason!

Is it a shorted cell ???
Is it a compromised temp sensor?
Is it a solderless control module??

I wouldn't just trust blindly a fault code that ask me to spend 20k€ - These amazin' codes are notorious for misleading ppl towards the wrong parts....

You have a Xentry service tool that's likely all you need. What did Peter Benz Ninja tell you??


+++++ Extremely Well Designed:
this is about avoiding to replace the wrong 10k€/$ used part to then begin troubleshooting a plugged up air filtration media overheated battery bank sensor... trust hard evidence.


Last edited by CaliBenzDriver; Oct 5, 2024 at 04:52 PM.
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Old Oct 5, 2024 | 10:10 PM
  #12  
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Gcl 220d 2018
Originally Posted by CaliBenzDriver
What are FAULT SETTING CRITERIA for this error???
Let's try to understand this fault to help you save 20.000€ for the wrong reason!

Is it a shorted cell ???
Is it a compromised temp sensor?
Is it a solderless control module??

I wouldn't just trust blindly a fault code that ask me to spend 20k€ - These amazin' codes are notorious for misleading ppl towards the wrong parts....

You have a Xentry service tool that's likely all you need. What did Peter Benz Ninja tell you??


+++++ Extremely Well Designed:
this is about avoiding to replace the wrong 10k€/$ used part to then begin troubleshooting a plugged up air filtration media overheated battery bank sensor... trust hard evidence.
Ninja try online about 45 minutes. Unfortunately can’t do anything
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Old Oct 5, 2024 | 11:03 PM
  #13  
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no problem

I believe you. Peter is the man
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Old Oct 6, 2024 | 12:29 AM
  #14  
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E300 W212
Originally Posted by yiannossavva
finally nobody can reset this error, you have to change the hybrid battery, in Cyprus cost 20,000euros!
WOW its hurt !!!
Reply
Old Oct 6, 2024 | 12:34 AM
  #15  
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E300 W212
Originally Posted by CaliBenzDriver
What are FAULT SETTING CRITERIA for this error???
Let's try to understand this fault to help you save 20.000€ for the wrong reason!

Is it a shorted cell ???
Is it a compromised temp sensor?
Is it a solderless control module??

I wouldn't just trust blindly a fault code that ask me to spend 20k€ - These amazin' codes are notorious for misleading ppl towards the wrong parts....

You have a Xentry service tool that's likely all you need. What did Peter Benz Ninja tell you??


+++++ Extremely Well Designed:
this is about avoiding to replace the wrong 10k€/$ used part to then begin troubleshooting a plugged up air filtration media overheated battery bank sensor... trust hard evidence.
Totally agreed with you..its only a time bomb set by mb to replace the battery after sometime..my remaining Switching cycles of contactors count still have 118115, And my high voltage battery show 132.27V ..really do know how to judge the battery is faulty..please share if you know, thanks..

Reply
Old Oct 6, 2024 | 01:43 AM
  #16  
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E300 W212
HI NINJA , Was it Peter who carried out the job ? Recently someone said you have tried 45min and nothing can be done to reset BMS P0A8000 ? TELL ME WHICH MODEL YOU CAN RESET THE CODE before i join the club cos i have the same problem ..thanks

Last edited by takweMB; Oct 6, 2024 at 01:45 AM.
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Old Oct 6, 2024 | 08:25 AM
  #17  
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Originally Posted by takweMB
HI NINJA , Was it Peter who carried out the job ? Recently someone said you have tried 45min and nothing can be done to reset BMS P0A8000 ? TELL ME WHICH MODEL YOU CAN RESET THE CODE before i join the club cos i have the same problem ..thanks
You should reach out to @BenzNinja directly through his website, www.benzninja.com.
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Old Oct 16, 2024 | 09:52 AM
  #18  
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Originally Posted by yiannossavva
Hello

I have E300 blueteck hybrid.
No error in instruments cluster.
when i read errors in xentry i get this error
P0A8000 The hybrid/higt-voltage battery module must be replaced.
the car runs fine.
How can i delete this error without change the hybrid battery?

Thanks
i have currently the same problem
Its comes in diagnostic as POA8000 code.
Did you sort yours out?
Thanks
Reply
Old Oct 16, 2024 | 10:30 AM
  #19  
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Originally Posted by Nadirtoumi
i have currently the same problem
Its comes in diagnostic as POA8000 code.
Did you sort yours out?
Thanks
there is nothing to sort out apart from what it says
Reply
Old Oct 16, 2024 | 10:37 AM
  #20  
yiannossavva's Avatar
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Gcl 220d 2018
Originally Posted by Nadirtoumi
i have currently the same problem
Its comes in diagnostic as POA8000 code.
Did you sort yours out?
Thanks
unfortunately you have to change hybrid battery!
Reply
Old Dec 3, 2025 | 08:18 PM
  #21  
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E300 hybrid
Originally Posted by BenzNinja
I can fix that
of course I can
can you please help, I have a similar issue here
Reply

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