Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

BMW 330I 1999–2023technical service bulletin

Bulletin SIB640521 · NHTSA communication 10218378 · issued Jun 1, 2022

Technical service bulletin
communication type
Equipment
component
1999–2023
model years
24
vehicle entries

Official summary

A rattling/droning noise is heard in the vehicle interior when the air conditioning (AC) is activated. Vibrations are felt in the driver's footwell.

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.