2021 BMW Dual Storage System Crash Shutdown Failure
BMW has issued a service action (NHTSA ID 10181229) for certain 2021 models regarding the Dual Storage System (DSS). In an accident, the DSS's internal relay may stick closed, preventing it from disconnecting from the electrical system and potentially posing a safety risk.
Ahmet Topcu2021 BMW 330i
Si applica anche a
- BMW 330e
- 2021
- BMW 740i
- 2021
- BMW M340i
- 2021
- BMW M760i
- 2021
- BMW X5
- 2021
- BMW X6
- 2021
- BMW X7
- 2021
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Why This Matters: Safety Risk
BMW has identified a safety concern with the Dual Storage System (DSS) in certain 2021 models. In the event of an accident, the DSS is designed to disconnect from the vehicle's electrical system via an internal relay. However, in some vehicles, this relay can become stuck in a closed position.
When the relay is stuck closed, a crash shutdown of the DSS does not occur. This means the power distribution box continues to be supplied with power until the DSS is fully discharged, which could pose a safety risk after an accident. This issue is addressed by a "SERVICE ACTION - CHECKING THE DUAL STORAGE SYSTEM AND REPLACE IF NECESSARY".
Symptoms
Owners may not notice immediate symptoms, but the vehicle's internal systems could set a fault code if the relay is stuck. The primary concern is the failure of the safety mechanism during an accident. If you experience a BMW Dual Storage System failure, it's important to have it checked.
Diagnosis and Trigger Conditions
This issue is specifically triggered in the event of an accident where the DSS is expected to disconnect. The internal relay of the Dual Storage System (DSS) may remain stuck closed, preventing the intended power cutoff.
Repair Procedure Summary
BMW has initiated a service action to address this potential BMW Dual Storage System failure. The procedure involves checking the Dual Storage System (DSS) in affected vehicles. If the system is found to have the faulty relay, it will be replaced. This ensures the DSS functions as intended during a crash event.
Owner Action
If you own a 2021 BMW model affected by this service action, it is recommended to contact your authorized BMW dealership. They can determine if your vehicle requires the inspection and potential replacement of the Dual Storage System. This SERVICE ACTION, identified by NHTSA ID 10181229, is performed to ensure the safety and proper functioning of your vehicle's ELECTRICAL SYSTEM in the event of an accident.
Source: NHTSA ID: 10181229
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