1. According to the factory specifications. 2. Perfect match for the car. 3. Easy installation. 4. Stable performance, high reliability ,100% factory tested. Part number:2518300390 A2518300390 A 251 830 03 90 Location: Front Left Driver Side Name:Glass lifter switch Fitment: For 320 CDI 2009-2012 For 320 CDI 4MATIC 2005-2008 For 320 CDI RWD 2005-2008 For 350 BlueTEC 4MATIC 2009-2012 For 350 BlueTEC RWD 2009-2012 For 350 CDI 4MATIC 2005-2008 For 350 CDI RWD 2005-2008 For 450 4MATIC 2005-2012 For 450 RWD 2005-2012 For R 280 2005-2011 For R 300 2005-2011 For R 320 CDI 4MATIC 2005-2012 For R 320 CDI RWD 2005-2012 For R 350 2005-2011 For R 350 4MATIC 2005-2012 For R 350 CDI 4MATIC 2005-2012 For R 350 CDI RWD 2005-2012 For R 350 RWD 2005-2012 For R 500 4MATIC 2005-2012 For R 500 RWD 2005-2012 For R 550 4MATIC 2005-2012 For R 550 RWD 2005-2012 For R 63 2005-2007 Colour:Black Material:plastic Package Contents: 1 * Glass lifter switch Only the above package content, other products are not included. Note: Light reflection 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.