Asc light blinking past 60 km/h wtf

[mikesimo]

I used a peake tool to reset stupid engine codes and now when i go past 60km/h, I have a slight lose in power and the asc light blinks repeatedly until I turn asc on. No problems when asc is on.

Anyone? This is a real head scratcher

[odm4286]

usually when the light flashes that means its braking the back wheels. Are you slipping at all when this happens maybe taking a turn too fast?

[mikesimo]

No I just get a slight lose in power, nothing really serious. Then goes away when asc is off.

[shogun]

standard wheels/tires?
Maybe you have to clean the sensors and measure them.

[flyfishvt]

Actually you have it reversed. when you hit the ASC button and the dash light is on all the time that means your ASC is "off". When the ASC light is off it means the ASC system is active but waiting for a signal. When the light is flashing it is "on" and working to prevent wheel spin. The loss in power is because ASC has closed the secondary throttle body.

If it is turning on then you have one of several issues that cause it to activate. Bad wheel bearings can do it for sure. Dirty sensors will too. Having mismatched tires or rims will absolutely set it off. Start with tires and rims then move on to the sensors.

[shogun]

http://www.bba-reman.com/content.aspx?content=advanced_hints_and_tips_bmw_a bs_problems

[Joylove]

Could be a duff sensor and vibrations aren't helping.