with high strength, toughness, uv resistance, aging resistance, corrosion resistance performance. Brake pads sensor is made of high temperature resistant materials and building materials, reliable and long service life. Simple installation, no need complicated tools, convenient for using. Refresh your car, make your operation easier. Brake Pad Wear Sensor Condition: Other Part Number: 1405401217 Placement on Vehicle:Front Rear, Left Right Specification: Part Number:1405401217, 2025400717, 1265402017, 0005400217, 1235400017, 140 540 12 17, 202 540 07 17, 126 540 20 17, 000 540 02 17, 123 540 00 17. Other Part Number:084-1086, EWS101, PWS172, 5S11558 For 280SE 300CD E300 E320 E55 S320 S420 S500 S600 SL320 SL500 SL600 SLK230 SLK320 Material:plastic colour:Black Package Contents: 4 x Front Rear Brake Pads Wear Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.