Quote:
Originally Posted by E90Fleet
Sounds like a problem with your car.
The cars are tested in development on both BMW's and the systems manufacturers winter testing ground on both snow and ice.
Doubtfull it would be the RFT as these have been used since the E90 in "winter countries" without problems
Also going into Sport+ or pressing the traction control button activates DTC. It does not deactivate anti-spin.
DTC allows more wheel spin than the standard DSC, but all the safety features are still there.
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you'r wrong about sport+ or pressing traction control once. Doing that allows for quite some wheelspin and even some drifting. Big difference compared to having everything enabled. Press and hold the button for about 5sec turns everything completely off though.
sure the car is tested on winter testing ground and while driving on ice and/or snow at -15 celsius there is no surprise that the anti-spin symbol flash all the time. The thing is that it happens at +5 celcius weather-condition on wet or even dry roads with perfect grip.
Seeing that there are numerous threads about this issue on scandinavian forums it seems that this is a design-flaw rather than everyone with the problem have a faulty dtc/dsc-unit. Apparently the issue was present on the previous 1-series, and is still there. A shame they don't sort it out. perhaps the countries with strong winters make up a pretty small market-share seen globally, so bmw don't bother that much about it.
I think bimmer-man has a good theory about it.
could indeed be that the system is calibrated too tight and in conjuction with our softer rubber, perhaps during acceleration the tyre flex/bend/twist a little making the dtc/dsc-unit think that the traction is lost when it is in fact not.