BMW X3 2018–2020 — technical service bulletin

Bulletin B541119 · NHTSA communication 10166383 · issued Sep 1, 2019

Technical service bulletin

communication type

Visibility

component

2018–2020

model years

vehicle entries

Official summary

SUNROOF WATER LEAK DIAGNOSIS: This bulletin outlines multiple known areas of possible water entry for the vehicles listed above. It serves only as a diagnostic resource in troubleshooting water leak complaints from the roof area.

Vehicles covered

2018 BMW X3
2019 BMW X3
2020 BMW X3
2019 BMW X4
2020 BMW X4
2019 BMW X5
2019 BMW X7

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.