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      11-26-2013, 11:05 PM   #67
warranty
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I did the tranny fluid change today, and at 50k miles the old fluid was pretty dark. Lifetime fluid my ass, BMW! Now the 1-2 shift seems to feel smoother (I used to have to double-clutch when cold to ensure smooth shifts) so I'm very glad I did it.

While I was under there I manually powered the pump to drain the fluid in the cooler. As another poster mentioned, I did so by slitting open the pump wire loom and scraping off the insulation on the red wire (+12V). Then I temporarily connect a battery +12V to the red wire, and connect another wire between the battery ground and the tranny case (which acts as a ground for the tranny fluid pump). I manually connect the ground wire in 15 second bursts to power the pump 3~4 times. Quite a bit more fluid were pumped out of the cooler that way...until there was just nothing more to come out of the drain hole.

As for filling the tranny, I initially filled up to the fill hole level, then I hand-tightened the old fill plug and cycled the pump for another 45~60 seconds (also in 15 second bursts). Then I think I added another ~300ml of fluid and re-installed a new fill plug that I bought (I discarded the old drain and fill plugs).

Of course, after I was all done I wrapped some high-temperature electrical tape over the pump wire that I had exposed and doubled the protection with additional wire loom just to be safe. Overall a very simple procedure--figuring out how to power the pump and cleaning up the occasional spills probably took more time than the actual procedure.

By the way, my filter mesh screen was also very clean, but since I had it out I just installed a new one that I bought along with the new crush washer.
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      02-03-2014, 01:19 PM   #68
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Was anyone's oil strainer that bad that they had to replace it?
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      02-07-2014, 09:24 AM   #69
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Quote:
Originally Posted by Giorgia View Post
Was anyone's oil strainer that bad that they had to replace it?
no when i replaced mine at 50k or 70k it was very clean. im doing another tranny fluid at 100k im at 84k now.. that will take 3 years for me to get to 100k lol
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      02-07-2014, 09:43 AM   #70
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I just changed mine at 45k miles(08) and it was black!!!!! i know that oil still works efficiantly even though its black but im glad i did it. of course more of a piece of mind.

knocked out both diff and trans fluid in 30 min. and it was my first time. thanks to the guides on this forum.

Brakes are next......
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      02-07-2014, 10:10 AM   #71
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Originally Posted by Giorgia View Post
I just changed mine at 45k miles(08) and it was black!!!!! i know that oil still works efficiantly even though its black but im glad i did it. of course more of a piece of mind.

knocked out both diff and trans fluid in 30 min. and it was my first time. thanks to the guides on this forum.

Brakes are next......
hmmn weird when i replaced mine at 50 or 70k i could still see some of the aluminum part and i wipe it down with a cleaner and parts were still pretty shiny.. maybe the dealer replaced mine at 30k. not sure..

yea brakes are really easy. if you dont have power tools make sure you have extensions tubes those nuts are hard to get..
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      02-07-2014, 11:50 AM   #72
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Oil was black lol...... strainer was clean
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      03-11-2014, 08:34 PM   #73
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Any gl4 fluid ok to use? Must use BMW fluid?
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