BMW Mass Air Flow Sensor - VDO 13627593624

Product Information

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.

• 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

About VDO

VDO is a division of the Continental Corporation's automotive group and it has been in the automotive parts industry for over 80 years. VDO is an OEM (original equipment manufacturer), supplying instrumentation, sensors, control systems, actuators, screen washers and audio systems. They have a thriving aftermarket business where they make high quality repair and replacement parts to OEM specifications.

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