Summary

This technical service bulletin addresses CSC communication errors in BMW i3 and i3 REx (Model I01) and i8 (Model I12) vehicles produced between 12/16/13 and 10/15/14.

The issue causes the vehicle to fail to enter drive readiness or the high-voltage system to deactivate during driving due to faulty cell supervision circuits (CSC).

Correction

Replace all CSCs if affected devices have specified production codes and diagnostics indicate replacement.

Only properly trained personnel should perform maintenance or repairs on Hybrid or Electric Vehicles.

Observe safety instructions when handling electric vehicles.

Manual:

Download: BMW Technical Service Bulletin – Model I01 (i3 and i3 REx) and I12 (i8) – CSC Communication Errors

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