BMW 428I 2014–2015 — technical service bulletin
Bulletin 540314 · NHTSA communication 10148326 · issued May 1, 2014
Technical service bulletin
communication type
Electrical System
component
2014–2015
model years
4
vehicle entries
Official summary
Service Action: Wiring Harness Sensor Rear Module. The wiring harness for the sensor of the rear convertible top module can be routed incorrectly, which can cause damage to the wiring harness. Incorrect routing of the wiring harness AFFECTED VEHICLES This Service Action involves F33 (3 Series Convertibles) produced from February 12, 2014 to March 17, 2014. First check if a Service Action label with a code number 681 is already attached to the B-pillar. If a code number 681 has been punched out, the Campaign has already been performed and no further action is necessary. Vehicles which require t
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.