Hello, have a friend with which the window lifter engine on the right does not work. I measured already but he always gets only a short impulse, so a line pulled by driver on the passenger side and nothing happens. So I take it that the engine is gone, now I have looked in the bay and there are many engines but not all for the BJ, also the engines from e.g. 323 F BJ? Hope the names are correct, come from BMW. Hope me can h 11en. Vllt is the passenger side still secured somewhere or there is a known error with the models. Look forward to your answers.