Replacement Part Numbers: 1567800075、1567800175、A1567800075、A1567800175、156 780 00 75、156 780 01 75、A 156 780 00 75、A 156 780 01 75。Wide Vehicle Compatibility: Fits for Mercedes-Benz GLA-Class (X156) 2015-2020 Precision Guidance & Restored Sunroof Function: This sunroof track provides the precise guide rail for the sunroof glass, ensuring smooth opening and closing operation. A worn or damaged track can cause sunroof sticking, grinding noises, uneven movement, or failure to close properly. This replacement restores proper sunroof function and prevents water leaks. Plug-and-Play Installation: Direct bolt-on replacement with factory mounting points. Installation requires removing the sunroof glass and headliner for access. Professional installation is highly recommended due to the complexity of the sunroof mechanism and the need for proper alignment and sealing.Quality Assured: Built with durable aluminum and high-strength plastic components, rigorously tested to ensure reliable, long-lasting performance. If you encounter any issues during shopping or have questions about compatibility, please contact us promptly through Amazon Buyer-Seller Messaging.