We have had 2 incidents where the warning light illuminated then went away. When the defect was disclosed, BMW said that there was no fix. Because the defect relates to personal safety, we can no longer drive the vehicle, but BMW refuses to pay for a rental car, insisting that the car can be driven despite the danger of the brakes going out, and will not repurchase the vehicle under the Song-Beverly (Lemon Law) Act. It has been over 3 months that the vehicle has been unable to be used and there still is no fix, and considering the fact that this is a high end vehicle, and how BMW has responded, we are not willing to chance continuing to own this vehicle.