Problem Reports
Mercedes-Benz 600SEL
Report: Faulty Mass Air Flow Sensor Causing Erratic Engine Operation and Poor Fuel Economy
Mercedes-Benz 600SEL Problem
4 Reports
Model Years Affected: 1992, 1993
Average Mileage: 136,000 mi (135,000 mi - 137,000 mi)
Verified
A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.
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mwhit1230, 1993 Mercedes-Benz 600SEL, 137,000 miEnthusiast
running rough, black smoke exhaust, no power, 45 .mph top speed, replaced.
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Visitor, 1993 Mercedes-Benz 600SEL, 135,000 mi
mass air flow sensors allowing too rich a fuel mixture causing engine to run rough when warm. replaced mass air flow sensors. Dealer price near $1,500!
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