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Old 04-19-2001, 12:45 PM
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My 1995 Mercedes C280 makes a long, high pitch beep when the climate control system is turned off and I ease off the gas pedal. When I speed up, it stops, when I slow down it starts again. If I turn on the air or heat, it stops. Any ideas?
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Old 04-19-2001, 05:29 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
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All of the A/C control flaps are vacuum operated. Possibly one of the vacuum elements are leaking(squeaking), the fresh air intake element is a common failure.
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Old 04-20-2001, 11:05 PM
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I've seen a few of these caused by the blower motor. You can try removing the blower moter, which is pretty accessable, and put a few drops of 3 in 1 oil on the exposed parts of the motor shaft.......Gilly
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