In this instruction i will show you guide on how to enable Mirrorlink for Mercedes Benz E-Class W213 2017.More topic about Mercedes,please refer to Benz trouble repair
Press and hold this button about 10 seconds on shifter
Then it will come to Engineering Mode,select “SW Setting”
Select “Variant Coding”
Now switch from OFF to ON for these first lines
After doing that,go back to top menu to select “End”
Hold the power button 10 seconds to reboot command
After it has re-bulit you will get MirrorLink in this menu
Sometimes when you are enabling MirrorLink it takes 10-20 seconds pops up in this menu.
You can choose “RockScout” on your Phone
It may require you to unpair your phone and pair it again,it also needed a reboot.