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Old 08-18-2001, 11:20 PM
Benzmac Benzmac is offline
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
Your car uses 3 sources of vacuum. 1 is the engine, 2 is the reservoir, and 3 is the vacuum assist pump. You will have to see which of this is faulty, if any.

You could also have a broken vacuum line/hose or a bad vacuum element in the dash.

You will need some diagnostic work to find this. Consider a good independent that KNOWS MERCEDES.!.
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Benzmac:
Donnie Drummonds
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