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What are the updated key data for BMW G series?

2 Answers

LaAlaina

07/29/25 12:47am

BMW G series updated key data are as follows: Manual transmission method: Maintenance key data is stored in the Comfort Access and Start System and transmitted to the identification transmitter. Transmission occurs automatically when specific conditions are met, or can be done manually. During maintenance, this data can be read out using a BMW key reader. The maintenance key data is automatically updated during each driving session. Data includes: Vehicle condition maintenance data, check control information, fault code memory records. Update conditions are: "Terminal 15 is on", vehicle speed above 40km/h and below 40km/h, data is updated after driving 10km when vehicle speed is below 40km/h. When the engine is off, the remote signal receiver transmits data to the identification transmitter. Even after the identification transmitter leaves the vehicle, data continues to be written. The identification transmitter's data can now be read.

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OAvery

08/12/25 4:58am

Last time I went to the dealership for a system upgrade, I specifically asked about this. The BMW G-series key data updates are quite smart. When a new software version is pushed to the vehicle, simply bringing the key close to the steering wheel can complete the wireless update. Sometimes, the mobile app will also prompt you with instructions. After the upgrade, remember to reactivate the Comfort Access feature, otherwise the locking sensor may malfunction. The update mainly involves synchronization of the anti-theft system data and matching of newly added keys, especially for models equipped with digital keys. Normally, placing the key in the center console sensing area for ten seconds will allow the system to automatically check if the key ID is up to date, which is very useful for second-hand car owners. During the upgrade process, make sure the vehicle battery has sufficient charge, as a sudden power loss may cause the anti-theft system to report errors.

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