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RecallGazette

Vehicle problems, recalls & safety intelligence

BMW 328 2007–2018technical service bulletin

Bulletin B540907 · NHTSA communication 10150894 · issued Sep 1, 2018

Technical service bulletin
communication type
Structure
component
2007–2018
model years
38
vehicle entries

Official summary

?RETRACTABLE HARDTOP STATUS REQUEST SUPPLEMENT. INFORMATION Documents have been developed showing the known correct statuses for all hall sensors and micro switches used to operate the retractable hard top (RHT). This document is intended to act as a supplement to the diagnostic information available in ISTA. Comparing these statuses to the actual statuses of a vehicle with a functional problem may assist in narrowing down which sensor/switch is contributing to the functional problem. For E93, the status request may be found by connecting the car to ISTA and selecting: Control module functions

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.