Basically the same for all MBZ's and Bimmers. Those places and the dealers are only going to buy your car for auction wholesale. That way they can make a decent profit, after "certification". Probably more than on a new car.
I have found that when I turn on ac while on the highway, then turn it off and roll the windows down when I get on the street, the cool air continues for quite a while. Eventually, the cooling stops.
I think you are correct. I long for the "good ol days" when it was a mechanical cable that just opened a vent to the outside. Where I live that's all I need.
I only drive 700 miles per month in my daily driver. I make my own electricity and wanted to cut down on pollution and oil consumption......perfect fit for me.
If it's a rolling code system you have to let the home link learn the code from your Genie remote first. Then The same car button can learn from the button on the actuator.