Tools Required:

Power Bleeder


10mm Wrench

Hard part:

Purchase a small sprayer bottle, either a $50 Motive Power bleeder (fittings don’t work on a C4 but it does come with a pressure gauge) or a $12 sprayer at Home Depot if you like to assemble stuff from scratch. Purchase a C4 master cylinder cap and some brass fittings along with some good epoxy.

Bottom line: You’re going to have around $80 for a power bleeder that will work as it should on your C4.

Order of caliper bleeding: passenger side rear, drivers side rear, passenger side front, drivers side front.

Most drug stores give out for free small syringes (no needle). Ask for a 30 ml syringe. They’re free so ask for a dozen or so. Turkey basters are for turkeys, don’t use them as they are messy and are Bush league.

Remove the master cylinder cap. With the free 30 ml syringe, remove the old, black brake fluid down to the bottom of the master cylinder. If there’s black reside, get some tissues wrapped around a screwdriver and remove all black material. Remove it all.

Fill the master cylinder with fresh brake fluid. Keep all container lids closed as much as possible as brake fluid attracts water from the air and lowers the boiling point of your new fluid.

Attach you power bleeder to the master cylinder. Close all the pressure relief valves. Pump the bleeder to a maximum of 15 lbs pressure.

With a 10mm wrench, a clear hose attached over the bleeder valve run to a catch container, ( I use an old bourbon bottle with a cork drilled out just bigger than the clear hose), crack the bleeder valve and watch for new, clear fluid to start to show and no bubbles. Should be about 10 -15 seconds, max. Tighten the bleeder valve and remove the hose.

Repeat on 3 remaining calipers.

WARNING! Keep a close eye on the master cylinder fluid level. If it gets half way down, remove the power bleeder, fill up the master cylinder, pump up the power bleeder again and resume bleeding.

Author: Jerry Schubert
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