BMW 340I 2016–2017 — technical service bulletin
Bulletin B122516 · NHTSA communication 10146782 · issued Nov 1, 2016
Technical service bulletin
communication type
Engine
component
2016–2017
model years
7
vehicle entries
Official summary
"B58 -M POWER AND SOUND KIT, MALFUNCTION LIGHT ILLUMINATED. Check engine light illuminated. Check Control Message: "Drive faulty". Engine power reduced and set in "Emergency Program". Fault code stored in DME control unit: o 1F0541 - Drive, safety function: Bus signal about engine torque implausible. Fault Code stored in EGS control unit: o CF2C11 - DME/DDE interface: (Actual DME/EGS crankshaft torque, 0xA5, actual crankshaft torque, 0xA5) signal invalid. Affected are vehicles with the following Integration Levels: F020-16-07-5xx F020-16-11-500 F020-16-11-501 DME control unit software error."
Vehicles covered
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.