[cgarr]

Here is why we use it on vw's, I guess it works the pistons and fluid in that area, still need to bleed the brakes it just takes care of the abs part?

"From Ross-Tech"

This procedure details how to bleed the ABS pump when replacing brake fluid. This procedure is NOT necessary unless your ABS pump has gone completely dry. For normal brake work including fluid replacement, hose replacement, pad replacement, etc. this procedure is NOT necessary. Also, this procedure does not take the place of good ol' fashioned brake bleeding with one person operating the pedal while the other person opens the bleeder valves one by one and collects the discharged fluid.