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HomeShopAir & Fuel DeliveryOEM CONTINENTAL SIEMENS/VDO MAF Air Mass Sensor Flow Meter for BMW 13627566983 5WK9642Z

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OEM CONTINENTAL SIEMENS/VDO MAF Air Mass Sensor Flow Meter for BMW 13627566983
OEM CONTINENTAL SIEMENS/VDO MAF Air Mass Sensor Flow Meter for BMW 13627566983

Vdo 5Wk9642Z Mass Airflow Sensor

Controls air/fuel ratio

Your BMW’s mass air flow sensors reads the amount of air entering your engine. This information is used by your cars DME to determine fuel trim and other necessary metrics in order to deliver best performance and economy. This particular mass air flow sensor is known as a “hot wire” type sensor. As this sensor ages it becomes inaccurate or simply burns out. When this happens you engine may not run properly and you will likely have a check engine light. This replacement sensor from VDO original equipment for your BMW.

Note: 6 pin connector

Mass Air Flow Sensor

Mass air flow sensors are tasked with measuring the amount of air entering the engine via the intake. This mass air flow sensor is known as a hot film sensor which will suffer performance deterioration over time. The sensor is designed to be self cleaning. A faulty or non functioning mass air flow sensor will cause a check engine light and in some cases cause a limp mode. The best way to diagnose a faulty mass air flow sensor is to disconnect it and see if engine idle or performance improves.

Mass Air Flow Sensor Failure Symptoms

  • Check engine light illumniated with OBD codes related to MAF sensor faults
  • Engine has rough idle and/or stalls
  • Short term fuel trim is rich at idle or lean under load
  • Constantly runs rich or lean

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