Battery – A177900xxxx Software reset repair manual P1D2800 #202602078123

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Price for operation manual:
Repair manual price: 1500€ + Tax
This operation manual is a proprietary business secret that outlines the successful refurbishment process for BMS Battery system. By following the provided instruction steps, which include text, images, and videos, you will be fully equipped to repair the BMS effectively and efficiently. Article is non-refundable
Info
You can charge this service: 800€
You need 2 labor hours to deploy this repair (only BMS)
NEW OEM Battery price 9020+TAX
Info
Common causes:
  • Deepdisharge through irresponsible use
  • Deepdischarge after crash incident
  • Botom SOC 0 discharge in bodyshop repair process
  • Powerglitch activated programmed defect with contactor counter 0 error
  • Random factory defect software bugs
Info
Errors:
  • P0DE71C - The cell voltaes of the hybrid/high-voltage battery module are too high. The voltage value is outside the permissible range
  • P0DE763
  • P0DE697
  • P0DE663
  • P0DE61C
  • P0B3B62
  • P0DE616
  • P1D2771
  • P1D2777
  • P1D2785
  • P1D2800
  • P1D2877
  • P1D2885
  • P056216
  • P0B4487
  • P18051C
  • P0AA100
  • P0AA400
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Part numbers:
  • A1773402100,
  • A7893401126,
  • A1779007708,
Info
Tools needed (prepare it) :
  • Soldering iron
  • XPROG Original or VVDI
  • Firmware file reset editor (available here costs 10 EVC Tokens per file edit)
  • Xentry C4 Tool or Autel
Info
Repair operation steps
 Before performing any work on the Mercedes high-voltage drive unit system, it is mandatory to prepare a controlled and safe working environment in accordance with high-voltage safety protocols. Lvl 3 HV Access license needed.

Secure the work area – The workspace must be clean, dry, clearly marked as an HV zone, and equipped with proper safety gear (HV gloves, face shield, insulating mat).

Disconnect the 12V system 

Perform safe high-voltage system shutdown – Using approved tools and following OEM procedures, disconnect the HV connectors and wait the required cool-down period for capacitor discharge.

Verify absence of voltage (Zero Voltage Verification) –
 1- Frist troubleshoot and confirm that you got  errors from the list readed via diagnostic Xentry tool
 Release all LV...
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