Battery Module Reset – BMS Crash / Under-Voltage Unlock Service

Professional service to reset and unlock high-voltage BMS units after accident, deep discharge, storage damage or under-voltage lock. Restores battery functionality when the vehicle will not start or charge.

When do you need this service?

• Your car was in an accident and now shows BMS crash faults.
• The car will not start or charge.
• Battery remained unused for months and is now “dead”.
• Under-voltage or crash alerts will not clear.
• Still getting BMS safe-mode or charging errors after mechanical repair.

How the service works

1. Read the BMS EEPROM/Flash dump.
2. Upload the dump file when placing the order.
3. We prepare a reset file (crash & voltage unlock).
4. Write the reset file back → reinstall BMS → test.

If you cannot read/write BMS, you may send us the module for complete reset.

Advantages

• Cheaper than replacing the full HV battery.
• Fast turnaround — file delivered in minutes.
• Retains original battery, VIN and configuration.
• Perfect for workshops or end-users.

Supported BMS Units

Mercedes

TC275TP-64 / 95M01

Part Numbers

• A 000 982 7113
• A 000 982 7824
• A 000 900 8029
• A 000 900 5735
• A 000 982 5730
• A 000 982 6405
• L09-1-A0009000221
• L09-1-A7899019600
• L09-1-A7899018200
• L09-1-A0009000834
• L09-1-A0009006539

VAG

D76F0192

Part Numbers

• 5C6915590A / 5C6915590D / 5C6915590C
• 5C6915182A / 5C6915182C / 5C6915182B
• 7P0915182F
• 8R0915233 / 8R0915591

MPC5644B

• 4M0915223R
• 4N0915105B
• 4N0915105D

Porsche – MM9Z1J638

Taycan / Cayenne / 911 / 992

• 9J1.915.105.N / E / EY / K / KY / L / M
• 9Y0.915.105.P
• 9Y0.915.107.F / H / HY / JY / RY

Tesla – MM9Z1J638

Model 3 / Y / S

• 1598486-00-D / F
• 1598486-88-D / F
• 1598486-99-D
• 1875662-00-E / F

Volvo – MVBM FS32K14x

• 32301105 / 32301134 / 32324998
• 32371368 / 32400883
• 32300454 / 32300677

Renault – 93C86

• Kangoo 293A0HB86D
• Kangoo 293A0HB90C

Smart

• A7899010100 – Bosch 0442001001

Fiat

• Fiat 500 BMS V024-00054C

BMW – SPC5746 / 25C02

• DK5A3475501
• DK5A48C6502
• 61218092859
• 61218092860
• 524157-744
• 61217857287

Ferrari

• 937713 – MM9Z1J638
• BEA007F1E

Toyota

• Prius 89892-52011 – Denso 175100-7461

Important Notes

• This is a reset service, not a physical battery.
• Always follow high-voltage safety procedures.
• If your BMS reference is not listed, contact us before ordering.