Ok, what I meant was. My brakes work just fine, but yes, in e.brake situation I can lock them up to skid. I too had a snow storm issue. Years ago, I climbed a steep hill and could feel the entire system take over,it was truly amazing. Then, some years ago,I was in CO and tried driving with the trifecta and you're right,it was scary to say the leasts. I drove around 10-15mph. Paid $1000 to have it fixed and within a year back in FL, trifecta was back on. SO, I am going to check n clean all four speed sensors, then, pump, then go to the supposed new abs module. THey were supposed to have changed out the Steering angle sensor. Im in FL, so I don't really need the AWD.

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X5 3.0 AUTO -2001 - 238,000 miles