Complete upgrade kit to activate the DAB+ function of the factory-installed infotainment system Only 2 antenna amplifiers (plug & play) need to be replaced Simply connect the adapter to the vehicle's OBD interface - done! The interface carries out all necessary coding independently Enjoy crystal clear sound with DAB+ with ease All functions are described in your user manual Suitable for the following vehicles: Mercedes E-Class Saloon W213 Mercedes E-Class Estate S213 Mercedes E-Class Cabriolet A238 Mercedes E-Class Coupé C238 Selectable option: Version 1 Mercedes E-Class Saloon W213 Mercedes E-Class Estate S213 Mercedes E-Class Coupé C238 Version 2 Mercedes E-Class Cabriolet A238 Scope of delivery: Antenna amplifier Coding dongle Note: Only in conjunction with Comand Online (code 531) and code 807/code 808 or Comand Online (code 531) and code 79B (preparation for the DAB digital radio standard)