With our coding dongle you can activate the ambient lighting menu setting Simply connect the adapter to the vehicle's OBD interface - done! The interface performs all necessary coding autonomously Suitable for the following vehicles: A-Class 177 series EQA-Class 243 series B-Class 247 series E-Class 213 series E-Class Cabrio/Coupé 238 series EQB-Class 243 series GLC X253 253 series GLC C253 253 series CLA-Class 118 series GLA-Class 247 series GLB-Class 247 series Other models available on request Scope of delivery: Coding dongle Note: For ambient lighting, the dongle alone is not sufficient, additional hardware such as a control unit and LED lights is required