This liftgate lock actuator has undergone extensive quality and safety testing to ensure reliable performance. It is engineered to provide a direct replacement for the stock actuator on specific vehicle years, makes and models. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Mercedes-Benz GL320: 2007, 2008, 2009] - [Mercedes-Benz GL350: 2010, 2011, 2012] - [Mercedes-Benz GL450: 2007, 2008, 2009, 2010, 2011, 2012] - [Mercedes-Benz GL550: 2008, 2009, 2010, 2011, 2012, 2013] - [Mercedes-Benz R320: 2007, 2008, 2009] - [Mercedes-Benz R350: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013] - [Mercedes-Benz R500: 2006, 2007] - [Mercedes-Benz R550: 2008] - [Mercedes-Benz R63 AMG: 2007]