BMW F13 Brake Pad Sensors

BMWs are built with a wear indicator for the front and rear brake pads. When the pad wears to a certain point, the metal of the brake rotor will contact the sensor and trip the [BRAKE] light on your dash. This is an indication that your pads are low and need to be replacement soon. It's impossible to know exactly how many miles are left so have a shop inspect the pads and make recommendations for additional brake work to have done. Remember that if the dash light comes on then the sensor needs to be replaced in addition to the pads. Most BMWs have one sensor in the front (left-front) and one in the rear (right rear) since pads are replaced in axle sets only.

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