Hi, the noise I had came after BMW replaced my filter and forgot to pull out one of the old gaskets, that resulted in three gasket instead of two and the filter rubbing against the pan during startup.If you experience noise without having done anything I guess you have another issue. You have a ZF box unlike the GM box i have. ZF is a much thougher. I would preform a oilchange w/filter first, the "lifetime oil" stuff BMW claim is not always correct. I change my oil ever 60K kilometres. I have a 325ix with auto and 300K kilometres on the meter, same box.