2 brake pad wear sensors

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Via a calculation model, the DSC identifies the thickness of the brake pad in order to determine the mileage remaining until service is required for the Condition Based Service. The single-stage brake pad wear sensors (front left and rear right in the inner brake pads) serve as an additional monitor of the calculation of the thickness of the brake pad.

The brake pad wear sensors are of single-stage design. When the conductor path is worn through, approx. 5 % of the remaining brake pad thickness is reached. This corresponds to a remaining distance of approx. 2500 kilometers.

Fig 1: Identifying 2 Brake Pad Wear Sensors

Courtesy of BMW OF NORTH AMERICA, INC.

Item	Explanation
1	two-pin plug connection
2	Brake pad wear sensor (example, rear axle)

A critical brake pad thickness is indicated in the instrument panel by a Next Service indicator (Condition Based Service CBS) as well as the red general brake warning light.

The following further control units are involved in functional networking: