Hello. I will try to help you with this. If you do not find what you need I can always opt out and give another master a try. As a dealer Master Tech, we do not rebuild transmission but ony replace with a remanufactured trans. But I have located a site that can provide rebuild manuals for transmission.
http://www.autorepairmanuals.biz/site/573683/page/267592
Check out this site, as I think you will be able to find the manual at a good price.Thank you and let me know if I can help further or if you can't find the manual you need so I can relook or give another master a chance. I think this is the site for it though.
-Roger
BMW Mechanic
Level 1 BMW Master Certification, 9 Years Dealer experience, Team Leader, Shop Foreman
Thank you for the accept anyway. I wish I had access to the manual for you but even BMW NA does not even give technicians this information. Just as a note, you could check you local transmission shops and they might be able to get you a paper manual at a good price.
Thank you.
I have checked and the only information I can find at BMW is the information below. I hope it helps. Check to see if the diagrams are similar. The only trans option I have for your vehicle is the 440z.
A5S 310Z is the only one listed for an e32 in the BMW repair manuals. I would think replacing the valve body should not be that hard except make sure you are removing only the bolts that hold it in place by looking at the replacement part. As for the internal problem, I can not be sure. In the dealership if we say this problem we would rec. replacement of the entire transmission. We do not do much internal work at all. I have included these instructions below. I wish I could be more helpful. Let me know if you can think of anything else and I'll see if I can help.