Hello, would like to overtake my window lifter at Gelageit, for that I wanted to watch ebay and maybe with some luck buy cheap ones, which I can overtake. Now, the question is: do I have to use the engines? complete window lifters to pay attention to something, it is offered sometimes weclhe, however, have the most different indices A, B, D, E, F? As far as I know, the model year 1992 changed what, you can also see it in ETKA, the old engines still fit on the window lifters, or not or yet?