Quote:
Originally Posted by M3MPH1S
I know this isn't really what you're asking, but I figured I'd include it as a fun info tidbit for everyone
Here's a thread from the coding subforum that shows how traction control is calculated between different models - specifically post #8 (and refer back to post #1)
https://www.m3post.com/forums/showth...light=euro+mdm
I will summarize shortly here:
There is some sort of equation that isn't known to non-BMW engineers, but what we do know is that the car is measuring coefficient of friction in some way and there are values assigned to each chassis as to when to engage traction control.
For M3_UEBERSTEUERN_MUE_1_2_M:
wert_00: !(E90+(S65B40+US,S65B44+!US+MAN_UMF_GTS),(E92,E93) +S65B40)
wert_01: E90 + S65B40 + US
wert_02: E92 + S65B40 + !US + !MAN_UMF_GTS
wert_03: E92 + S65B40 + US
wert_04: E93 + S65B40 + !US
wert_05: E93 + S65B40 + US
wert_06: E92 + S65B40 + !US + MAN_UMF_GTS
wert_07: E90 + S65B44 + !US + MAN_UMF_GTS
Here are the coefficient of friction that are associated with each value:
wert_00: 2.5
wert_01: 4.09375
wert_02: 2.09375
wert_03: 3.296875
wert_04: 3.09375
wert_05: 4.484375
wert_06: 2.09375
wert_07: 2.09375
It was interesting to me just how much the US E93 got shafted on traction control compared to Euro E92 |
(You can change the Wert Number in the coding. It's on the same page as the Euro MDM setting. I switched my E90 to Wert_02 and traction control got less intrusive. As far as we know, the least amount of traction control that you can have is, switching to Euro MDM and changing Wert to Wert_02. I ran at the track with traction control on for 4 years, so I experimented quite a bit with it.)