Check Engine Light is illuminated, check control message indicates ""bring in for service"". The faults...
BMW technical service bulletin B640523 for 2020-2022 BMW X3 and 2018-2023 BMW 530E.
- Bulletin number
- B640523
- Component
- Engine and engine cooling: engine: engine control module (ecu/ECM)
- Summary
- Check Engine Light is illuminated, check control message indicates ""bring in for service"". The faults themselves and the Malfunction Indicator Lamp (MIL) have no functional effect on the vehicle. There are multiple missing message fault codes (DTC) stored in the integrated automatic heating/air conditioning system (IHKA) control unit."
Owners of these vehicles have filed 68 complaints in the engine category.
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