1999 Z-3 Auto Trans Fluid Change

[leachmj]

I know, I know....Trans fluid is "lifetime"....but I messed up and pulled the wrong plug.... So I need to get the right kind back in. I need to know the procedures for filling the Transmission so it runs right.

Thanks

[Eten]

The tranny's oil pan should have a large, probably green, sticker informing of the correct oil. To fill: Put in lower plug (drain plug) and fill with BMW specified oil until it comes out the top hole (fill plug). The trans needs to be between 30 -50 degrees CELSIUS to fill to correct level. When trans is at that temperature, continue to fill oil until it once again overflows out the fill hole. Install plug and go. How do you know the trans temp? If you have a laser temp guage, aim it at the pan (duh). If no temp guage available... and you didn't hear this from me... run the car through all the gears, incl reverse, each for a few moments. Idle in drive maybe 4-6 minutes and then check level. It's pretty close. You should have a dealer or shop recheck it, but at least you can drive the car carefully.
What were you looking for under there that made you pull the wrong plug anyway? Just curious.

[bad man working]

Eten is nearly right he got the auto-box temp right but it doesn't hurt to do it cold. Pull out the green plug then the filler bung you need a 17mm Allen key for that pump the right fluid (it tells you on the green plug what it should be) fill until it overflow it is now safe to run the engine with the wheels raised run through the gear in manual snow flake or what ever you got do this several time all the gears including reverse then put it in park and fill the box till it overflow.