Have 1/2 friends to help you:
1. MAKE SURE the reservoir is always FULL
2. Help press and release the pedal
3. Tighten and release the bleeder valve to bleed the fluid.
If you are not a track addict w/ R comp and High Heat Range Race brake pads you will be HAPPY w/ the $7 a bottle Valvoline Synthetic that you can find @ Autozone. I used this on my previous STi for track days and it never gave up on me:
For ABS, you may need a electronic tool to activate the valve.
But what I do, drive around and find a road w/ dirt/sand and slam the brake to engage the ABS couple of times then go back home and rebleed
MY06 Triumph Sprint ST 1050 ABS
MY05 545i 6MT
MY99 TRD Camry Solara S/C.
MY05 Saab(aru) 92X STi
Thanks for the instructions. Can you please confirm that these are the proper steps?
1) Suck out brake fluid from master cylinder reservoir.
2) Fill master cylinder reservoir with new brake fluid.
3) Bleed each break until you get new break fluid coming out.
4) Drive around and break hard to activate ABS a couple times.
5) Rebleed each break again.
I would suggest looking at getting a pressure bleeder (mine is from Motive). I've done both methods before and the pressure bleeder makes it so much easier/faster and a one man job. The basic unit is $50 from Summitracing.com. I upgraded to have extra attachments (I've used it on my 1969 GTO and on a newer GM car, plus did my E46 330i that I had before the E60). I do some driving schools, so have to change the fluid more often then BMW standard frequency.
It will last forever and is a nice tool to have.
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Don't suck the fluid out of the reservoir, it will induce air into the system, if air gets into the ABS pump you will need to purge it, and thats almost impossible without a diagnostic computer.
Just top up as you use it. Try and rent or buy a vacuum bleeder, it draws the new fluid through the system without introducing any air, the pressure systems can either aerate the fluid (bad) or blast it all over the place (worse).
if you buy one you could rent it out to members on here!
Originally Posted by bdkinnh' post='643780' date='Aug 11 2008, 02:47 AM
News to me. The BMW service documents (34 00 050 and 34 00 025 to be specific) show the use of a pressure bleeder.
Have you ever used a pressure bleeder?
I'm a fully qualified vehicle mechanic and I don't like them, any garage worth its salt uses a vacuum system, why would you use pressurised air to bleed your brakes when you don't want air in the system?
I'd understand if there was no other way, but there is.
Also, it fills the reservoir up to the top so you have to pump some out to get the correct level anyway.