Service action - checking the dual storage system and replace if necessary
BMW technical service bulletin B611320 for 2019-2020 BMW X5, 2019-2020 BMW Z4 and 2019-2020 BMW 330I and others.
- Bulletin number
- B611320
- Component
- Electrical system
- Summary
- SERVICE ACTION - CHECKING THE DUAL STORAGE SYSTEM AND REPLACE IF NECESSARY: In the event of an accident the two-battery Dual Storage System (DSS) is disconnected from the electrical system via an internal relay. In some cases the relay is stuck closed and a fault is set. In these circumstances: A crash shutdown of the DSS does not occur The power distribution box is supplied with power until the DSS is fully discharged
Owners of these vehicles have filed 195 complaints in the electrical category.
Vehicles covered
- BMW X5 2019-2020 20192020
- BMW Z4 2019-2020 20192020
- BMW 330I 2019-2020 20192020
- BMW 750LI 2016-2019 2016201720182019
- BMW X7 2019-2020 20192020
- BMW X6 2020 2020
- BMW 750I 2018-2019 20182019
- BMW 740I 2017-2020 2017201820192020
- BMW M340I 2020 2020
- BMW 740LI 2016-2017 20162017
- BMW 740E 2017-2019 201720182019
- BMW M760I 2017-2020 2017201820192020
- BMW B7 Alpina 2018-2020 201820192020
- BMW 745E 2020 2020
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