condition ensures high quality and reliability for your vehicle. Compatible with for - W164 GL350/450/500/550/63AMG models from 2006 to 2011. Aftermarket replacement item designed to meet or exceed original specifications. Requires coding with a diagnostic tool for proper installation and functionality. Error codes must be cleared before installation; consult manufacturer if issues persist. This product is an aftermarket replacement designed specifically for for - W164 models. It is essential to have professional staff for installation, as the unit needs to be coded according to the vehicle's initial settings. If the original vehicle has any error codes, they must be resolved using a diagnostic tool prior to installation. The trailer module settings should be turned off to normal operation. Color: White Material: ABS Package Contents: 1x Rear Left Keyless Control Module 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.