BMW X5 2014–2017 — technical service bulletin
Bulletin B540719 · NHTSA communication 10166379 · issued Sep 1, 2019
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2014–2017
model years
4
vehicle entries
Official summary
GURGLING NOISE FROM SUNROOF DRAINS: A gurgling noise can be heard from the front sunroof.
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.