Brakes Wheels 1st Gen Tires Most liked posts in thread: Soft pedal?

I think you still have air in the system. Sinking peddle sort of sounds like a bad master, but I doubt that is it or rear brake lines failing. Not much help I know, but that's all I've got.

Edit What fluid are you using? Is it from a new sealed container?

 

Had the exact problem when I replaced my brake system. (rotors, pads, and stainless lines) I made the mistake of draining and refilling the old fashioned way by pumping all the fluid out and re-filling and bleeding. After that epic fail, I bought a pressure bleeder which I should have used to begin with, and re-bled multiple times. I, like you, had useable brakes, but a very soft pedal. Ended up taking it to my independent shop where he hooked it up to the Mini diagnostic computer and we bled it a few more times using his commercial pressure bleeder system and with the computer activating the ABS system before and after each wheel. That improved it considerably. It's still not a firm as I remember, but I've been messing with the darned thing so long that I could be mistaken. It's stopping just fine and at the extreme I can get the tires to chirp so I'm not worried about it from a safety point of view. After I put about 500 miles on it and have everything broken in I'm going to replace all the fluid again, but using the pressure bleeder this time.

 

Only things I'm aware of that can do this are autoenginuity (which I have, and have used successfully) and the dealer tool (which I also have, but haven't used). There may be other advanced scan tools with BMW extensions that can do it, but I don't know this to be fact.

 

I got the autoenguinity tool after Paul's write up of it, and it works as advertised, helped immensely with my brakes as I definitely had air in the ABS.

 

Link to buy autoenguinity tool? Cost?

 

^^^Call John at Best.

 

Yeah, I agree I will have my local BMW / MINI shop do my ABS bleed before next years Dragon.

I will just add it to the list of things I have done in the Spring like a fresh alignment.

Thanks guys