Haven't been on this forum in months, but saw this "old" post today. Just had my '96 328i's transmission fluid changed by my indie mechanic about 6 months ago. Dropped the pan, ordered the filter and gasket kit, and got tranny fluid from BMW. Charged me $300 and change for the whole thing if I recall. Said the fluid was dirty, gummy, but metal free at 130k miles. Hope this helps.