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      05-21-2026, 08:50 PM   #1
SwedishWoodChopper
SwedishWoodChopper
United_States
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Drives: 2008 E90 335i N54
Join Date: Sep 2017
Location: RI

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Transmission Rebuild?

Hi All,

I'm not sure if I'm in the right place, but I've kind of hit a wall in my research. I've recently noticed my transmission is slipping a little when holding constant speeds in 6th gear, little slips while I'm cruising along especially when the transmission isn't warm enough. I drive a '08 E90 335i RWD, original motor, original transmission, and about 193,000 miles. I think the friction disks may be starting to wear down a little too much. I want to get some opinions on whether I should rebuild the transmission, or maybe someone else has had a similar issue and has some maintenance/repair they did to fix this issue. I also haven't really been able to find any good resources for rebuilding the transmission, I want to at least look into it to see if it's something worth doing. The transmission is a ZF 6hp16. Thank you all.
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