Quote:
Originally Posted by bNks334
If you hold the traction control button down for 5 seconds, on a 135i, all systems like ASC, DSC, TC, and CBC (corner braking control is what it is called on the 1m) are supposed to be defeated. Not sure how "track mode" on the M2 works though...
I am kind of surprised you found a "CTC" function in a different module that still applies some sub-level of intervention. As I posted previously, it doesn't look like the CBC function is even programmed for use in the 135/128i's DSC software (post 57)... CTC might be a sub-function of the ASC function?: http://www.bmw.com/com/en/insights/t...y_control.html
Maybe you can try experimenting with re-enabling "CTC" and going back to the MK60.COC module and disabling "ASC" there? see how the car drives then? I'd bet with DSC enabled and ASC disabled (via coding) you'd get the same driving experience as you are now with DSC enabled and this "CTC" function disabled...
Did you ever code off Brake pre-tensioning when you did your coding? The car literally does pretension the brakes when you lift off the gas quickly...
Also, isn't it common for a rumbling vibration to be caused by a mechanical LSD sometimes? Maybe you're just feeling your LSD at work lol?
Maybe you can get in touch with fe1rx or review his Ohlins suspension thread: http://www.1addicts.com/forums/showp...&postcount=177. He used a method to actually graph the intervention of the e-diff. Maybe you could do the same and determine if the brakes truly are being applied? It would be beneficial to everyone to figure out how the modules all play with one another and to have some actual quantitative data to analyse to show the coding is doing what everyone here anticipates it is... |
I have a 335i with the MK60 COA module which basically has the same function and parameters as the other MK60 modules. I agree that a long press of the dsc button should disable everything.
I played with ASC in the past but it didn't seem to yield any different results even with CTC enabled. Disabling the pretension didn't stop ASC intervention from my findings although it may help on the track.
For testing purposes, ive taken sharp corners and a variety of driving situations including wet roads to experience the cars behavior. I don't notice any rumbling effect on my setup. In fact, it's hard to tell there is any intervention. It's really a smooth slowing down process. I dont really notice anything is happening until i stomp down on the accelerater at the apex of certain corners. That's when I notice Im getting some assistance. On some occasions I might experience a quick pulse of the front brake to control oversteer or inside brake of the rear wheel to control understeer. For the most part, I can toss the car around and have fun in it. Keep in mind, no one should be hitting the gas on sharp corners track or street.
Im not a professional driver so maybe I should just leave well enough alone. I can spin the wheels without a problem. Just knowing there is some minor torque reduction keeps me wanting more.