BMW 330I 2019 — technical service bulletin
Bulletin B310719 · NHTSA communication 10169458 · issued Nov 1, 2019
Technical service bulletin
communication type
Equipment
component
2019
model years
1
vehicle entries
Official summary
SERVICE ACTION: APPLY CAVITY PROTECTION INSIDE THE FRONT AXLE SUPPORT. The corrosion protection applied to the inside of the front axle support during the manufacturing process may have minor coating defects. In individual cases this can lead to localized rust damage on the front axle support over the service life of the vehicle. Manufacturing process 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.