Implausible sensor signals in convertible roof system.
BMW technical service bulletin B540217 for 2014-2016 BMW 428I, 2014-2016 BMW 435I and 2015-2016 BMW M4.
- Bulletin number
- B540217
- Component
- Electrical system
- Summary
- SERVICE ACTION: IMPLAUSIBLE SENSOR SIGNALS IN CONVERTIBLE ROOF SYSTEM. Signals from sensors in luggage compartment are being misinterpreted by the convertible top control module (CVM). This may lead to failure of the system to detect obstructions and cause damage to the hydraulics. Software error in the CVM.
Owners of these vehicles have filed 86 complaints in the electrical category.
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