Does anyone know "for sure" what a momentary press of the DSC switch does to the system versus a >10 second press?
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Ron Stygar
I drove a friend's e46 M3 and I tried the two different modes of the DSC on that car.
DSC button press:
- Deactivates traction control but stability control remains active (corner brake control to correct for slides)
- DSC light illuminated on dash
DSC button press + hold for 10 seconds:
Deactivates traction control and stability control
- DSC and "Brake" light illuminated on dash
DSC button press:
- Deactivates traction control but stability control remains active (corner brake control to correct for slides)
- DSC light illuminated on dash
DSC button press + hold for 10 seconds:
Deactivates traction control and stability control
- DSC and "Brake" light illuminated on dash
That the only difference between push and push+hold is that with the latter the warning light will stay on until the car is switched off. But dynamically....nada, no difference.
A friend who runs an e46M3 ('02) has the same experience.
This is especially noticed tracking: Lime Rock is a good example, The Downhill turn will tend to work the individual braking hard if DSC is on. if you punch it off you would expect the same unmistakable feeling to happen on that corner...but it's just not there.
On non M cars there IS a difference.
Like I said I wish there was a multistage DSC...
A friend who runs an e46M3 ('02) has the same experience.
This is especially noticed tracking: Lime Rock is a good example, The Downhill turn will tend to work the individual braking hard if DSC is on. if you punch it off you would expect the same unmistakable feeling to happen on that corner...but it's just not there.
On non M cars there IS a difference.
Like I said I wish there was a multistage DSC...
Retrofit to 98 M
Anyone have an idea on how (im)possible it would be to retrofit ASC or DSC to a 98 M which came with no traction control at all?
I read about http://www.racelogic.co.uk/traction.htm which seems like a great system, but I heard that because it cuts spark that it trips the Check Engine Light so it's not a good choice for our cars...
Anyone have an idea on how (im)possible it would be to retrofit ASC or DSC to a 98 M which came with no traction control at all?
I read about http://www.racelogic.co.uk/traction.htm which seems like a great system, but I heard that because it cuts spark that it trips the Check Engine Light so it's not a good choice for our cars...
Ron
Hope I'm not off base on throwing mine in if it helps you any
single press DSC light comes on
press and hold and the DSC light and brake light stay lit
I was told that no matter what the anti lock brakes would not be dis engaged doing this
(holding for 10 seconds)
Hope I'm not off base on throwing mine in if it helps you any
single press DSC light comes on
press and hold and the DSC light and brake light stay lit
I was told that no matter what the anti lock brakes would not be dis engaged doing this
(holding for 10 seconds)
Anyone have any further research on "desensitizing" the DSC for the S54 M Roadster and/or Coupe?
It would be great to either (a) remove the throttle control while retaining corner braking control or (b) reduce overall sensitivity in sport driving situations.
It would be great to either (a) remove the throttle control while retaining corner braking control or (b) reduce overall sensitivity in sport driving situations.
Two obsercations:
1) On the earlier E46 M3s after lots of trying various things, the DSC is either on or off. There is no 10 second button push. It only gaults the system and wil not allow the DSC to be turned on by the button, you have to cycle the ignition.
2) Later E46 M3 DSC seems to be programmed ddifferently, and tends to be more intrusive. Not sure if they have two levels like th enon-M cars do.
Not sure when the changeover was, but 2002s only seem to have one level and it is pretty unobtrusive. 2004s seem to be more intrusive.
1) On the earlier E46 M3s after lots of trying various things, the DSC is either on or off. There is no 10 second button push. It only gaults the system and wil not allow the DSC to be turned on by the button, you have to cycle the ignition.
2) Later E46 M3 DSC seems to be programmed ddifferently, and tends to be more intrusive. Not sure if they have two levels like th enon-M cars do.
Not sure when the changeover was, but 2002s only seem to have one level and it is pretty unobtrusive. 2004s seem to be more intrusive.
Just trying to verify the following:RS2 said:
Disabling the DSC on my '01 M coupe (Teves MK20) results from a short press. I'm assuming that holding the switch >10 seconds initially disables it too and then the additional hold of >10 seconds puts it in fault mode requiring an ignition off on cycle to reset. When it goes to fault mode, I'm assuming that it is still disabled like the short press.
John is going to try checking this out at his local dealer.
In other words, there is no need to hold the switch for >10 seconds to disable it in my car.
Just a BIT of oversteer, eh?AC said:As I mentioned above, I can safely say I have enough sideways at the limit experience to tell you one push is all you need and all you get
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I got it the first time. I totally agree with you. Just trying to tie up some loose ends.AC said:As I mentioned above, I can safely say I have enough sideways at the limit experience to tell you one push is all you need and all you get
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Are you sure? With that picture it is somewhat hard to tell.Ron Stygar said:
Just in one of thos emoods.
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