Sos malfunction displayed.
BMW technical service bulletin B840416 for 2012-2016 BMW 328I, 2017 BMW 330I and 2012-2016 BMW 335I and others.
- Bulletin number
- B840416
- Component
- Electrical system
- Summary
- SOS MALFUNCTION DISPLAYED. An SOS malfunction is seen in the Kombi. When pressing the E-Call/SOS button in the overhead console, nothing happens. Fault code B7F33C (internal ECU error) is stored in the Telematics control unit (ATM/TCB2). There are 2 known causes for this failure. They are as follows: Software file missing from the ATM/TCB2 control module Water leak at shark-fin leading to corrosion in the ATM/TCB2 control module
Owners of these vehicles have filed 396 complaints in the electrical category.
Vehicles covered
- BMW 328I 2012-2016 20122013201420152016
- BMW 330I 2017 2017
- BMW 335I 2012-2016 20122013201420152016
- BMW 750LI 2016 2016
- BMW M3 2015-2017 201520162017
- BMW 328D 2014-2017 2014201520162017
- BMW 428I 2014-2016 201420152016
- BMW 320I 2013-2017 20132014201520162017
- BMW 430I 2017 2017
- BMW R 1200 GS Adventure 2017 2017
- BMW 228I 2014-2016 201420152016
- BMW 435I 2014-2016 201420152016
- BMW M4 2015-2017 201520162017
- BMW 330E 2016-2017 20162017
- BMW 230I 2017 2017
- BMW M235I 2014-2016 201420152016
- BMW 340I 2016-2017 20162017
- BMW 440I 2017 2017
- BMW M240I 2017 2017
- BMW Active Hybrid 3 2013-2015 201320142015
- BMW 5-Series Gran Turismo 2017 2017
- BMW R Nine T 2017 2017
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