BMW 330I 2019 — technical service bulletin
Bulletin B340519 · NHTSA communication 10161561 · issued May 1, 2019
Technical service bulletin
communication type
Service Brakes
component
2019
model years
5
vehicle entries
Official summary
NO BRAKING FORCE ASSISTANCE AFTER ENGINE START DIAGNOSTIC TROUBLE CODE (DTC) 480705 / 480706. When starting the vehicle. The red brake warning light lights up in the instrument cluster. The braking force assistance has failed (stiff brake pedal). Check Control message appears: Drive at a moderate speed. Braking force assistance. The red warning lamp disappears after engine restart and braking force assistance is available again.
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.