Quote:
Originally Posted by JKRIT
My feeling is that my G30 has the same problem: brake system designed to work with no vacuum assist provided by an ICE. The computer decides how much braking is applied: "How fast did you take your foot off the accelerator? How fast are you going? Are you going around a curve? We don't care that you are backing off the brake pedal: We know better than you how much to brake the car.">
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I think the G30 brake system may have 2 hydraulic pressure channels…a lower pressure one for Comfort (I.e. you’re not driving aggressively so you don’t require maximum boost) and a higher pressure channel for Sport where you probably are driving more aggressively and do need more brake boost. I always sensed the tug of war between braking and transmission happened more in Sport than Comfort (due to programmed coasting) but a technically knowledgeable CA told me it was more about the brake boost.