Description: Direct replace your broken window switch, please confirm your car model and part number before purchasing. Made of plastic material, not easy to crack with long service life. Please allow 1-2cm differences due to manual measurement. This is a non-OEM product, accessory only! Specifications: Color: Black Material: Plastic OE Number: 2518300290 Pin Number: 3 Size: 17.2x5.7x5.5cm / 6.77"x2.24"x2.17"(L*W*H) Fitment:for Mercedes Benz ML350 GL320 GL350 ML320 ML450 W164Installation Steps: Firstly confirm your vehicle at flameout status. Use a skid to pry the old switch out carefully. Pull out the plug from the old switch. Connect the new switch to the wiring harness. Finally, install it into the bezel bracket. Note: Please confirm the OE number, model, year match your vehicle. Please confirm the pin number and position are the same as the switch. Please install at flameout status, if it stops working after a period of work, you need to reoperate the steps again. Package Includes: 1 x Car Power Window Switch 1 x Removal Tool