Hi Rich, I joined the list just recently and have just been reading, not having too much to contribute. I have been thinking a bit on your problem and I believe that your booster is indeed bad. To my recollection there is a valve in the booster that in the closed position allows vacuum on both sides of the diaphragm. When the valve is opened by a push on the peddle the valve shuts off the vacuum from the reservoir and opens a port from the outside to one side of the diaphragm. That provides the power to put on the brakes. If the valve does not shut off the supply from the reservoir then the vacuum in the reservoir will go out with the vacuum on the other side of the diaphragm and vacuum in the line from the vacuum pump will show low and the brakes will not work very well. Just the symptoms you seem to have.
Hope I'm still remembering all of this right and it is of some use to you. Manfred __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
