Supported Models:1.For MY2018 W205 C-class and W253 GLC class for CarPlay and Androidauto Activation via OBD22.C-Class W205 (SA154 datacard code necessary)3.GLC-Class W253 (SA154 datacard code necessary)4.SA531 COMAND Online (HU5) is not supported. (NOTE:Software upgrade after 10/19/2018 will block CarPlay OBD activation). Factory version enable one OBD module to activate up to 10 , is useful for the repair shop. But the downside is this OBD module cannot deactivate when plugin to the car second time.Operation procedure:1.Ignition ON.2.Plug OBD2 module to the car OBD2 diagnostic port.3.Notice the screen will show you HWID.4.Wait until the system reboot - DONE Important Notice:1. Must the siri option of your for is keep opening status.2. Must original charging cable of your for .3. Carplay is an app of 's IOS system, only for can the Carplay app.(Ip5 or Ip5 above are support)4. for Android Auto is an app of the Android system, Android phone can the Android Auto app.(But not all Android phone support)Material:plasticcolour:blackPackage Contents:1 * Activation ToolOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin