PeachParts Mercedes-Benz Forum - View Single Post - Is their a way to install auto window switch's in a W126.

pawoSD · #2 06-05-2005, 09:15 PM

In those cars with that feature the window switches merely "communicate" a signal to the car computer which then activates the window motors with a relay, so "clicking" those switches tells the computer to lower the windows all the way down or up, and not clicking them it will only go for as long as you hold the switch. Our C220 diesel in germany had that feature and I liked it as well, its very handy. Also in those newer window systems is a cut out switch that senses when the window is all the way up or down and cuts the motor off instantly (probably a load-trip switch like in the antenna motors), while on our older cars it will just stall the motor as long as you hold the switch since its a direct connection....I'd say its not really possible to do that retrofit on the older ones....