Disc Brake Pad Wear Sensor. Electronic sensor wire. To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in theCompatibility Table. This part generally fits BMW vehicles and includes models such as 530i,M5,X5 with the trims of 3.0i Sport Utility 4-Door,4.4i Form ula 1 Sport Utility 4-Door,4.4i Lujo Sport Utility 4-Door,4.4i Sport Utility 4-Door,4.4i Top Line Sport Utility 4-Door,4.6is Sport Utility 4-Door,4.8is Sport Utility 4-Door,Base Sedan 4-Door.