Problem Reports » Mass Air Flow Sensor Failure Causing Poor Fuel Economy and Check Engine Light On

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Mercedes-Benz C230

 

Report: Mass Air Flow Sensor Failure Causing Poor Fuel Economy and Check Engine Light On

Mercedes-Benz C230 Problem
19 Reports
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Model Years Affected: 1997, 1998, 1999, 2000, 2003, 2004, 2005

Average Mileage: 127,717 mi (55,000 mi - 210,000 mi)

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The mass air flow sensor can fail, resulting in poor fuel economy and Check Engine Light illumination.

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  • Visitor, 1999 Mercedes-Benz C230

    I just had this problem repaired because of the code due to the check engine light. I am still having a problem sometime when I hit the accelerator and the car hesitates before it moves into gear. I have to take the car back to the repairman.

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  • adahlgall, 1998 Mercedes-Benz C230, 210,000 mi
     Rookie

    mass air flow sensor, bad fuel mileage, rough running and check engine light on.

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  • Visitor, 2000 Mercedes-Benz C230, 100,000 mi

    A can of MAF sensor cleaner will solve this problem. Cost about 7 dollars and 15 minutes.

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  • Visitor, 2003 Mercedes-Benz C230, 130,000 mi

    Took to dealer in Raleigh NC. They couldn't get the light to go off. Couldn't fix the problem after paying over 1000..

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  • Visitor, 2000 Mercedes-Benz C230, 100,000 mi

    I seem to remember that the check engine light came on,but this happened about two years ago. Code on computer indicated problem with Mass Air Flow Sensor.
    Mass Air Flow sensor failed, replaced unit,car runs fine. Do not waste time cleaning or trying to clean sensor, to delicate & most likely to damage it in attempting to clean as very fine wires as the sensors on a silicon wafer chip. Took it appart to see after installation of new one.

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  • Visitor, 1998 Mercedes-Benz C230, 197,250 mi

    MAFS-bad gas mileage, runs very rough,and check engine light on.

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  • Visitor, 1999 Mercedes-Benz C230, 201,201 mi

    check engine light had a bad MAF sensor replaced it. yet to find out if it will pass smog after the engine run cycle which in this vehicle is around 200 miles.

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