E90 ATF Cooler

[DanzE90]

I also was told that its not recommended to re-program the gearbox, as its costsly rm600++ with 1 1/2 days need to wait. that also need to make sure that
all sensors are in good condition, if 1 fails need replacement & restart the whole programming process again.

therefore what could I do to eliminate the jerking issue?

 

[astroboy]

I change ATF every 40k km. Oil pan at 120k km.. Heh.. Stretch kao2..

BTW, how one know jerking caused by gearbox? Unless got warning indicator on the dash.