Question about 1983 Mercedes-Benz 300-Class

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I Just bought a 1988 300te station wagon. When coming to a stop the auto. trans. clunks from 3rd. to 2nd. gear. It also makes a loud clunking noise if gas pedal is floored and trans. downshifts. The transmissionhifts harshly half the time.Could this be a sticking valve in valve body? The car is a Mercedes Benz. The previous owner told me the transmission is vacumn controled, is this so? Would you recommend removing the valve body from the transmission or is this unadvisable?

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Check u joints

Posted on Sep 12, 2009

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