This is driving me crazy. Randomly, different electrical things stop working (power windows & seats, power sunroof, etc.). They fail independantly at different times (except for things that are on the same circuit, i.e driver power window and power seat). It has even happended with the wipers and the trunk lid release, just not as frequent as the windows/seats. If I pull out the fuse for the circuit that no longer works and put the same one back in, everything on that circuit will start working fine (at least for a few days). Pulling out and putting back in the same fuse will only fix the problem if the ignition is on, it will not work with the key off. Removing the battery terminal and replacing it after a few seconds will also fix the problem. A brand new battery did not keep the problem from resurfacing. My Benz mechanic has no idea. Help!