I think I've found the source of the leak. Input shaft seal located at the leak. I could not find any leak on the transmission cooler hoses and on the pan or on the sides....
How common is it that leak from input shaft seal on those Transmissions?
I've been called the bmw dealer for a troubleshooting on 18th August. Gonna pay $250 - $300 just for the trouble shooting....
Very common after so many years of use, trans has to come out for that, the seal is cheap and when the trans is out it is an easy job as the seal is at the front, when you have the trans out, also replace the rear output seal and on the side the small one for the shift lever.
download this http://www.vasimr.com/bmw/5hp30_repair_manual.pdf
Last edited by shogun; 07-27-2020 at 06:47 PM.
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