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RecallGazette

Vehicle problems, recalls & safety intelligence

BMW 1 Series M 2012–2018technical service bulletin

Bulletin B120618 · NHTSA communication 10135025 · issued Feb 1, 2018

Technical service bulletin
communication type
Electrical System
component
2012–2018
model years
44
vehicle entries

Official summary

DME FAULT CODE CDC203: Various control units contain faults indicating missing messages from the battery management electronics

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.