BMW iX2 (2023–2026) Non-start after collision (HV safety devices triggered)

Non-start.

Multiple drivetrain warnings.

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The following fault code(s) may be present

21F325 - Impact detection: Crash detected due to ACSM signal

21F325 - High-voltage battery unit, terminal 30C, voltage sensors: Terminal 30C activated

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Parts Repaired or Replaced

Pyrotechnic safety devices (HV safety system components)
Coolant pipes

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Affected Vehicles

BMW iX2 xDrive30

BMW iX2 2023
BMW iX2 2024
BMW iX2 2025
BMW iX2 2026

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Common Failure Symptoms

Vehicle will not start.
Drivetrain warnings / multiple warning messages.
HV system offline / inhibited following crash signal.

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BMW iX2 Diagnostic Report

Initially, stored faults and vehicle history indicated the high-voltage safety system had triggered following a collision event. Subsequently, we carried out checks to confirm the crash-related safety devices had activated as designed and that there were no additional underlying faults that required repair prior to recommissioning.

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BMW iX2 Repairs

Once the vehicle checks were complete, we followed BMW dealer-tool guided procedures to restore the HV system to service. During the repair we also identified damaged coolant pipes, which were repaired in line with manufacturer procedures. A BMW programming session was then run as part of the post-repair procedures.

Completed BMW dealer-tool guided crash/HV safety restore procedure.
Replaced required pyrotechnic safety devices.
Repaired damaged coolant pipes to manufacturer procedures.
Recommissioned and reinstalled the HV battery.
Ran BMW programming session and completed post-repair checks.

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Resolution

The vehicle was returned with the HV system correctly recommissioned and operating as expected.

Following the repair:

Vehicle starts normally.
HV system is online.
Post-repair procedures completed (including BMW programming session).

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High Voltage System Repairs
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