My 2003 E 500 stopped being able to open and close the windows with the smart key (the summer opening feature). Its when you press and hold the lock button on the key and point it to the drivers side lock and it would close my sunroof and lock my doors and would close opened windows; and vice-versa when you unlock. I noticed it "only works now from the passenger's side lock" as I press the button on the key, not the driver's side as it used to. Maybe a sensor not working? Help please?? :bowdown: