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Mercedes Benz
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1992
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190E 2.3 (201.028) L4-2.3L (102.985)
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Emissions Maintenance Light
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Description and Operation
Emissions Maintenance Light: Description and Operation
The "OXYGEN SENSOR" light illuminates every 60,000 miles, indicating the sensor replacement interval. When the light illuminates, the oxygen sensor needs replacement.