BMW vehicles can hold service information in electronic systems instead of relying only on a stamped book. A completed workshop visit may create a digital record linked to the vehicle. On supported models, service information can also be viewed through BMW iDrive.
BMW Condition Based Service, or CBS, has a different role. It monitors selected service items and calculates when attention is due. CBS status is a maintenance reminder. It is not, by itself, proof that the work was completed.
For applicable generations, a BMW workshop can read vehicle and service-status data from the key. Newer connected vehicles may send service-related data through BMW TeleServices. Key reading and TeleServices help a workshop prepare for service, but they do not guarantee a complete history of past repairs.
The available BMW maintenance history depends on the model, production year, equipment, country, servicing route and workshop registrations. A visit may be absent when it was recorded only on paper or in a separate workshop system. Always compare digital entries with invoices and inspection documents.