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
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You can charge this service: 800€ You need 2 labor hours to deploy this repair (only BMS) NEW OEM Battery price 9020+TAX
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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
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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,
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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
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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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