Quote:
Originally Posted by jay_bob
The ABS pump is passive when not needing to provide assist. The fluid just flows right through. I would highly recommend a Motive (or home made) Power Bleeder for this job. It makes it so much easier.
Using a power bleeder also prevents the master cylinder from getting over stroked which can harm the seals.
The one you have to be careful with is the SBS system on 2005 and 2006 W211s.
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I'm about to replace the brake hoses in my SDL. Put together a home made power bleeder with Lowes parts for about $18. Took about 20 minutes to put together.
Why? Because even though I've been bleeding brakes from time to time for 45 years, I really don't want to "over stroke the master cylinder" and end up having to add that to the project.