BMW 850i Mass Air Flow Sensor Replacement Cost.

The average cost for a Mass Airflow Sensor Replacement is between $915 and $1366. Labor costs are estimated between $123 and $156 while parts are priced between $792 and $1210. Estimate does not include taxes and fees.
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Learn More About Mass Air Flow Sensor Replacement Cost

Common Symptoms

A failing mass airflow sensor can cause the Check Engine Light to come on and engine starting/running problems.

If the mass airflow sensor (MAF) is not functioning correctly, the vehicle may lack power when accelerating or going up hills.

Common Misdiagnoses

Mass airflow sensors (MAF) are often replaced when the only problem is a bad connector or the sensor wiring harness. The shop should check these items before replacing the sensor.

High-performance style wet foam air filters are not recommended because they will damage the mass airflow sensor and actually cause poor performance.

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