This process is the same for all makes and models and should only take you 5 minutes if.
Program mirror garage door opener.
If your opener uses rolling code technology press and release the learn or smart button on the garage door motor.
Hold the device about 1 3 inches from the homelink buttons.
Press homelink and transmitter buttons at the same time.
Return to the vehicle and firmly press and hold the desired homelink button for two seconds and release.
You will have to follow the manufacturer s instructions.
What this does is that it will clear all previously programmed garage door from the memory of your mercedes benz.
Then press the learn button the opener and then press and hold the button on the mirror.
How do you program an after market mirror garage door opener.
Hold the buttons pressed for at least 20 seconds.
This may have to be several times.
Once the button is pressed you have 30 seconds in which to initiate the next step.