Thread: w201 brake fluid- is there a trick to changing it?
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Old 12-09-2012, 06:07 PM
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Hirnbeiss Hirnbeiss is offline
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Join Date: Mar 2002
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With the pump method, you leave the valve closed until the pedal is depressed. Open the valve on the downstroke, then close it on the upstroke, and repeat. It sounded like you left the valve open the entire time, which allows air to come in on the upstroke.
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