Coding dongle Active Speed ​​Limit Assistant 546 for Mercedes distance control 239, EZ9, ET4

To activate the Active Speed ​​Limit Assist for Mercedes-Benz. The following functions are available after activation: Traffic signs read via the factory-installed multifunction camera are transmitted to the remote control system. By linking the system to navigation data, the vehicle may brake shortly before leaving a town. Speed ​​transfer can be activated via the MBUX configuration menu -> Traffic Sign Assist. Manual transfer is also possible by pressing the Res button. Button again. Suitable for the following vehicles: A-Class 177 series, CLA-Class 118 series, EQA-Class 243 series, EQB-Class 243 series, B-Class 247 series, C-Class 205 series (from model year 2019), E-Class 213 series (up to model year 2019), E-Class Coupé/Cabriolet 238 series (up to model year 2019), GLC-Class 253 series (from model year 2019), EQC-Class 293 series, GLA-Class 247 series, GLB-Class 247 series, GLE V167 167 series, GLE C167 167 series, GLS V167 167 series, G-Class 463 series (from model year 2020), Sprinter 907/910 series, B-Class, Hymer, Hymer ML-T, Hymer Clochard S, Hymer Gratuit S. Other models on request. Activation as well as deactivation via your vehicle's diagnostic interface. Simply connect the adapter to the vehicle's OBD interface – that's it! Once coding is successful, the active speed limit assist is permanently activated. Package contents: 1x coding key. Notes: Only suitable for vehicles with traffic sign assist code TSA 513, speed sign recognition code 504, or traffic sign assist code JA9, as well as distance control code 239, EZ9, or ET4. After using the dongle, the "Accept Limits" menu of the traffic sign recognition must be activated.