[fiehlsport]

My car is exhibiting signs of a bad transfer case. It's covered under CPO, and I plan on making an appointment soon.

I coded out the TPMS system a year or two ago, works great, no issues.

Is the DSC module on the transfer case itself? Will the process of installing a new transfer case throw errors related to TPMS possibly? I'm wondering if I should re-enable TPMS before bringing it in.

This is the only coding I had to do:

2) Code OUT $2VB and ADD IN $265 in the VO.

3) Change the following codes in CIC, KOMBI, and XDSC:
CIC: RPA_CIC
aktiv
CIC: RDC
nicht_aktiv
CIC: RDC_SAFETY
nicht_aktiv

KOMBI: RDC_ALIVE
nicht_aktiv
KOMBI: MMI_ENA_RPA_RDC
aktiv
KOMBI: RDC_VERBAUT
nicht_aktiv
KOMBI: DSC_MIT_RPA_CC
aktiv
KOMBI: RDC_DISP_SWITCH
nicht_aktiv

XDSC: AUSSTATTUNG_RPA
aktiv

Might the XDSC coding get lost with a new transfer case? Or are they going to simply code the VIN to the new transfer case and call it a day?

Thanks!

[RocketSurgeon]

The DSC module is under the hood, not part of the transfer case. My concern here is that a transfer case replacement will almost certainly require connecting to the car with ISTA-P to calibrate the new parts. The program may have an issue with your modified VO when it compares it to the VO stored on BMW online. To make 100% certain that you don't have warranty issues, I would probably code everything back to default

[david in germany]

Originally Posted by RocketSurgeon

The DSC module is under the hood, not part of the transfer case. My concern here is that a transfer case replacement will almost certainly require connecting to the car with ISTA-P to calibrate the new parts. The program may have an issue with your modified VO when it compares it to the VO stored on BMW online. To make 100% certain that you don't have warranty issues, I would probably code everything back to default

on point.

[fiehlsport]

Originally Posted by RocketSurgeon

The DSC module is under the hood, not part of the transfer case. My concern here is that a transfer case replacement will almost certainly require connecting to the car with ISTA-P to calibrate the new parts. The program may have an issue with your modified VO when it compares it to the VO stored on BMW online. To make 100% certain that you don't have warranty issues, I would probably code everything back to default

Thank you, this helps a lot! I'll be sure to de-code everything tonight, then make my appointment.

Then, all I'll have is a TPMS light, which shouldn't affect any of the repairs. (I removed and sold my TPMS sensors a few years ago)