E71 X6M Transfer case reset

[Bilbofraggins]

Ok, went to reset this today...using the Foxwell NT520 PRO

Got the vehicle up to operating temp...ran the Foxwell, no codes (ODB or BMW).

Went to do the transfer case adaptation reset, and get a caution message..."Transfer case can't be reset without problems"...

Anyone encountered this?

No warning lights and no problems evident driving.

Thanks for any input/guidance.

[Bilbofraggins]

Ran the vehicle through an ODB2 drive cycle...then tried the adaptation again...Worked flawlessly second time around....No idea if the drive cycle had anything to do with it...I doubt it.

Chalk another one up to the Foxwell Nt520Pro.....Beer time...

[Molez93]

So what's the benefit of resetting the system after replacing that oil?

I just used my own Foxwell 520 for the first time this past weekend. The immediate task was to register a new battery. Noticed an oil life fault/warning/whatever for my transfer case while poking around. At 105k miles, I knew the oil needs a refresh along with tranny and diffs.
Have zero idea of the benefit or point of resetting after I get to that fluid.

[Bilbofraggins]

Lots buried in various threads on the “Why” and a bit here...

https://us.autologic.com/news/bmw-x3...-transfer-case

“Transfer Case Oil and Monitoring

Oil Monitoring is performed by the VTG control module to determine when service is due. Service due is indicated by a Fault Code. Additional details are available using an advanced BMW scan tool. Service functions provide direction on changing the transfer case oil and updating the VTG control module with the necessary reset and adaption procedure, which is extremely important for condition based service (CBS).

The VTG calculated transfer case and clutch wear based on amount of slip, torque, speed, mileage and can account for road conditions. Service intervals will vary based on individual vehicle use.“

Bottom line... yes for transfer case.... no when changing tranny fluid.