Yes, I fixed the leak right away. The price was driven by the parts, BMW recommended changing the filter, which is part of the plastic pan, the fluid alone is 35 bucks for 1/2 liter, it takes 6 liters. The parts from the dealer are 500 bucks, the rest was labor. Some dealers use the old fluid back in, so it reduces 210 from the price. There is a 5 series forum I also belong to that has a great DIY on the transmission filter with pics and torque values. I have since put about 5k on it, and its as smooth as when it was new, no leaks. Now when I do my oil changes, I pull the bottom cowl off to check for any other leaks. The cowl can be dangerous, it can prevent one from noticing a leak when it is minor.