New ECU validation needed after replacing certain control modules.

Bulletin number

B090218

Component

Electrical system

Summary

NEW ECU VALIDATION NEEDED AFTER REPLACING CERTAIN CONTROL MODULES. With introduction of the new Headunit HU-H3 (MGU Media Graphics Unit) we have a new way protection mechanism against tampering. If one or more of the following components MGU, TCB Telematic Communication Box (ATM-02), RSE Rear Seat Entertainment or KOMBISP18 instrument cluster needs to be replaced the secure connection between them must be re-established. In order to re-establish the connection, an electronic certificate must be created from the BMW backend and imported into the Vehicle. After the replacement of one of the mentioned Modules the Control Module needs a valid certificate in order to communicate with the other Modules.

Owners of these vehicles have filed 72 complaints in the electrical category.