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1990 Mercedes-Benz 300CE

Question: Defective MAS

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metalchip, Gasoline, Tiger, GA, December 20, 2008, 13:22
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 Rookie

Will a defective MAS unit cause my 1990 Mercedes 300CE to gear down when going down the road? If so, where can I find one?

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  • Answer #1

    HughJ December 22, 2008, 11:56
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     Technician

    It sounds like you are experiencing a loss of power, and this can be caused by the MAS, or even a failing fuel pump. These types of problems can be difficult and expensive to diagnose without the proper diagnostic tools and knowledge.

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