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DJHayter 01-13-2013 04:04 PM

transmission fluid change ????
i have an 86 bmw 325es 2.7l I6 i want to do a tranny fluid change and haven't done one on a manual transmission. can someone help me out with how to do it, what fluid to use and how much. thank you

downhiller 01-13-2013 05:01 PM

theres two plugs on one of the sides of the tranny (cant remember), bottom one drains, top one fills. youll have to check to see what tranny you have since some take different fluid. theres a tag near the front that has the info.

once you got the fluid and drained out the old, put the bottom plug in and fill the top one until fluid starts coming out. then put upper plug in and your done

BMWFatherFigure 01-13-2013 09:43 PM

Thread tape on the plug to ensure no leaks.

ozosil 01-15-2013 03:07 AM

I thought manual BMW never require a tranny fluid change, the manual says it lasts a life time. What are some symptoms of this needing to be done?

downhiller 01-15-2013 04:55 PM


Originally Posted by ozosil (Post 7314238)
I thought manual BMW never require a tranny fluid change, the manual says it lasts a life time. What are some symptoms of this needing to be done?

this is why reading the manual is bad. every fluid needs to be changed at some time for a longer lasting vehicle. the manual trannies are a longer service interval, its normally done the same time you get a diff service.

the newer cars are a dealer only service on the trannies. they use a machine that attaches to one of the cooler lines then the other to the radiator and it flushes out the fluid. but thats mainly on autos

DJHayter 01-15-2013 05:24 PM

im still trying to find out the fluid i should use i went under and looked for a tag and all i found was a yellow sticker saying special oil HWB BEST NR 8122 467 305 does this help at all

downhiller 01-15-2013 05:30 PM

whats the production date

downhiller 01-15-2013 05:33 PM is saying atf for all of 86 manual trannies so dont know.....i would just thrown in some redline mtl.

DJHayter 01-15-2013 05:38 PM

driveshaft coupler sizes??
i have a 86 325es manual. how do i know if my tranny is built from 06/1986 125mm outer dia or from 05/1986 110mm outer dia. please let me know

downhiller 01-15-2013 06:09 PM

on the tag within the driver door, there will be the production date at the upper right hand corner (from sticker writing) itll be the month number/year. 86 was a split year. pre5/86 had the older tranny style, post6/86 had the newer tranny

DJHayter 01-15-2013 06:16 PM

01-86 is what it says so i have the 110mm ????? does that help at all with what fluid to put in the tranny

Nick323 01-16-2013 06:00 AM


Best Nr
means order number in German.
I Googled

HWB öl
HWB lubricant, but got nothing. Sure it is HWB ?

downhiller 01-16-2013 04:08 PM

it does state most bmws

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