Delivery stop: replace control unit transfer case.
BMW technical service bulletin B270122 for 2018-2021 BMW X3 and 2019-2021 BMW X4.
- Bulletin number
- B270122
- Component
- Engine
- Summary
- DELIVERY STOP: REPLACE CONTROL UNIT TRANSFER CASE. Due to a production failure, the control unit was assembled with a capcitator instead of a resistor.
Owners of these vehicles have filed 119 complaints in the engine category.
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