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Thats a transmission fill plug, please dont mess up

Originally Posted by X1BMWR

Thanks much for sharing this information.

I tried to reach the fill plug as mentioned, but went a different route, which may be a bit easier and without the risk of getting burned.

I removed the intake snorkel and the bottom of the air filter housing. 3 bolts total to acces the fill plug to the right of the TCM?
You will need a long funnel to make pouring easy. Hopefully this will help someone.
Last picture from the fluid that came out of the transmission @100k