Hidden Function Mercedes W212 / Sign in Engineering Mode on Comand & Hidden Features on Comand

Sign in Engineering Mode on Comand NTG 4, NTG 4.5, NTG 5.1 Xiaomi 70Mai GPS - Subscribe to my channel please !!! Thank you all for watching and subscribe to the channel 👍 You can enter the engineering menu on Mercedes these models NTG Sign in Engineering Mode on Comand APS NTG 4 Sign in Engineering Mode on Comand APS NTG 4.5 Sign in Engineering Mode on Comand APS NTG 5.1