ITEM NAME:Car Brake Pad Wear Sensor for Mercedes Benz W204 W211 W221 E500 S350 1715400617 Product Description Description: Specifications: Installation location: front axle, rear axle Product Model (OE): 1715400617 Applicable models: for Mercedes-Benz W204 W211 W221 166 E500 S350 Product size: 120 x 7 x 7mm/4.72 x 0.28 x 0.28" Product weight: 8g Material: ABS + metal Included: 1 x Brake Pad Wear Sensor.Included: 1 x Brake Pad Wear Sensor. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. Product weight: 8g. 12 months Warranty.