Hey I recently bought a BMW Z3 5 speed 2.5. I was wondering if anyone new how difficult of a task changing the transmission fluid is. The car has 150k and I'm assuming The transmission has never been serviced. My main question is do I need to change the transmission filter (or does it even have one). Iv watched some youtube videos and it doesn't look like they change the filter, but one video showed a filter change on a standard transmission. Iv only had experience with autos and I'm pretty sure manuals don't have filters. also wondering how much oil the transmission needs i keep hearing estimates of about 1.25 quarts but I feel like thats not enough. Any help would be great thank you!