BMW 530E 2017–2020 — warranty extension
Bulletin B010525 · NHTSA communication 11018561 · issued May 19, 2025
Warranty extension
communication type
Engine
component
2017–2020
model years
9
vehicle entries
Official summary
The high-temperature (HT) coolant expansion tanks breathing line/pipe limited warranty for defects in materials and / workmanship has been extended to 10 years / 120,000 miles as determined from the original first in-service / delivery date.
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.