Transfer Case Oil Change BMW X7

83222409710
www.bmwpartsexpress.com/oem-p...

[@cormanian01]

I created a tool with a small bolt with a 14mm head and two nuts locked together to loosen the fill bolt. Also ista does have a service function to reset TC clutch adaptations.

[@DIYDime]

Nice

[@BobsGT235]

The newtis service info states that a software program (ISTA) needs to be used to open the valves inside the transfer case to drain all the fluid properly. Maybe it's not needed?

[@DIYDime]

I don’t know, I need to look into it. I did change without any ISTA work.

[@Fab24hdumans]

If u remove a little bit but not everything and replace with the exact quantity, then doing this 2-3 times, who care about their bs program. valves will open and mix with old fluid, 2-3 times later it’s all good… no brainer ..

[@paxrom1]

how much fill capacity?

[@DIYDime]

1 Liter or fill until it’s running out.

[@paxrom1]

@@DIYDime how did you position the straw, I can’t seem to get it past the middle part

[@DIYDime]

@@paxrom1It is soft flexible hose that connected to the soap pump.