Originally Posted by wpoll

So here's an odd thing - yesterday I performed the xDrive oil change service (including the oil wear adaptations via DIS and using OEM DTF-1 oil) and now my transmission is shifting better than it ever has in the three years I've had the car.

WTH...?

It's only been one day, so I'm not holding my breath but the dreaded 2-1 slam is gone (or at least I can't get it to do it...) and the shifts are butter smooth, regardless of transmission temp.

So, is there some logical (in terms of EGS and VTG logic) connection between the transmission and the transfer case? Has resetting the oil wear adaptations (integration values) on the VTG reset something in the EGS?

Time will tell....