I hope you were not planning on using the old fluid again! Get new fluid. It is a manual transmission right? They aren't hard to service at all. But you will need the above mentioned hand pump to get the new fluid back into a manual transmission. I like & use in my manual transmission Red Line products. What ever your car takes, use that product or the appropriate fluid from Mobil1. I like synthetic fluids for transmissions both automatic & manual. Hope this helps. What ever you do DO NOT DRIVE THE CAR DRY!! You won't like the repair costs as the transmissions are only available from BMW in a rebuilt exchange program worth $$$$$$$$$!