BMW 330E 2019–2021 — technical service bulletin
Bulletin B340620 · NHTSA communication 10178997 · issued Jul 1, 2020
Technical service bulletin
communication type
Electronic Stability Control
component
2019–2021
model years
4
vehicle entries
Official summary
NOISE FROM DYNAMIC STABILITY CTRL(DSC)UNIT WHEN DRIVING RAPIDLY OVER SPEED BUMP: When driving rapidly over a speed bump, the following issues may arise: 1. DSC pump noise 2. Power output delayed for 1-2 seconds DSC software application.
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.