Condition Based Service (CBS): Notes
With the series launch of the new 5 Series, BMW will also be offering service intervals that are geared towards the current condition of selected critical components - i.e. servicing that depends on the condition of components and maintenance requirements; this is known as Condition Based Service (CBS). CBS means thus: maintenance only for the component which is worn.
The system calculates when a service operation, e.g. an oil change or emissions inspection, is due and informs the customer of this via the LC display in the instrument cluster.
CBS sorts all the data according to date due and can determine when the vehicle should be taken into BMW Service.
The instrument cluster sends the sorted data to the Central Information Display (CID). There, the data can be selected for display in the Service menu. There are ten different types of service, with each of these types being assigned to a specific service group.
The system involves the following components:
- Instrument cluster
- External units (DME, IHKA, DSC)
- Car Access System (CAS) 2
- Central Information Display (CID)
All information that the CBS system requires is sent on the K-CAN bus. The instrument cluster is a subscriber on the K-CAN and acts as the CBS master control unit. The CBS requests from all the control units are therefore sent via the K-CAN to the instrument cluster and to the Central Information Display.