02tahoeindiana

What is this and what does it do? Seems like a proximity sensor but doesnt function. Little grey square to right of lock.

ThatsMyDawg

It's what you point your remote on your key fob to roll down your windows and open your sunroof when standing outside of your off Mercedes.

Point directly at it, press unlock and keep the button pressed down. Windows and sunroof will open. Have to have it dead on and you have to keep it held down.

Take care.

02tahoeindiana

Hah! Thanks! I wondered why i could only get my windows to roll down when i was in certain angles from the car!