si totusi..... The bottom line after many hours of researching about BMW's "Lifetime" Transmission fluid. In the years before the early 1990s, BMW never had "Lifetime" fluid in their vehicles. Over the course of time, BMW changed their policy, due to increasing competition from other car manufacturers to be more competitive with costs and initial customer ownership. Thus came about the "Lifetime" fluids or components on certain cars and equipment. The consensus though is that the transmission fluid should be changed at some point and is not "Lifetime". Depending on your driving style, climate and other independent factors you should change your transmission fluid anywhere between 50k and 100k miles. Sure, you could drive your car until the transmission fails, which may be over 100k miles, it maybe be less or your transmission might never fail. The point is that your transmission fluid is not "Lifetime" and should be changed. link: http://www.bimmerinfo.com/e46trans.htm