Coding dongle activation dimmable interior mirror & exterior mirror code 249 for Mercedes Benz

With this dongle, you can activate dimmable interior and exterior rearview mirrors. The exterior mirrors automatically dim when light is detected (e.g., taillights). Suitable for the following vehicles: Mercedes A-Class W177 series, Mercedes EQA-Class H243 series, Mercedes B-Class W246 series, Mercedes B-Class W247 series, Mercedes EQB-Class X243 series, Mercedes CLA-Class C/X118 series, Mercedes GLA-Class H247 series, Mercedes GLB-Class X247 series. Other models available upon request. Activation and deactivation via your vehicle's diagnostic interface. Simply connect the adapter to the vehicle's OBD interface – that's it! Package contents: 1x coding key