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BMW E31 Brake Pad Sensors

BMW E31 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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URO Brake Pad Wear Sensor - Front - E31 840i/ci 850i/ci/csi We recommend replacing the brake sensor wire each time the brake pads are replaced. These often become brittle and will disintegrate while removing them from the old pads.Only one required for front.

This item fits the following BMWs:
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi
Part #: 34351181823
Price: $4.95 (USD) 
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OEM Febi Brake Pad Wear Sensor - E31 E32 E34

Brake pad wear sensor should be replaced at ever brake service, even if not worn down. This ensures the sensor is as new as possible and less likely to fail due to built up corrosion.


Fits the following BMWs:
E31 850Ci - Rear
E32 735i/iL 740i/iL 750iL - Front and Rear
E34 525i 535i 530i 540i M5 - Front and Rear

Part #: 34351179820
Price: $3.20 (USD) 
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