NTK MG0109 Mass Air Flow Sensor

Mass Air Flow Sensor Overview

NTK MG0109 is a mass air flow sensor for BMW engine management applications that use a sensor module with housing. It is built for import vehicle coverage and follows NTK’s OE-focused sensor approach for accurate airflow measurement.

Compatible With BMW 325Ci, 330Ci, 330i, 325i, X3, and Z4 applications listed below, this NTK mass air flow sensor supports proper engine control by reporting incoming air data to the engine management system. Part number MG0109 is also referenced by several cross-number listings for the same application.

Key Features

• Mass air flow sensor for engine management systems
• Sensor module with housing application
• OE-specification focus for import vehicle coverage
• Tested under thermal shock, vibration, and OBD verification
• NTK technical sensor line backed by OE supplier experience

Detailed Description

NTK MG0109 is part of the NTK Mass Air Flow Sensor line, a technical sensor range developed from the brand’s OE experience. NTK states that its sensors are manufactured to meet or exceed OE specifications and are validated through demanding testing conditions. For BMW applications, this sensor is used in engine management systems where accurate airflow input is required for correct fuel and drivability control.

Fits 2003-2006 BMW 325Ci, N/A. Fits 2004-2006 BMW 330Ci, N/A. Fits 2004-2006 BMW X3, N/A. Fits 2003-2005 BMW 325i, N/A. Fits 2004-2005 BMW 330i, N/A. Fits 2003-2005 BMW Z4, N/A. Fits 2003 BMW 330Ci, N/A. Fits 2003 BMW 330i, N/A.

This part cross-references Beck/Arnley 158-1561 and Delphi AF10227 for the same application.

What It Is Used For

• Replacing a faulty airflow sensor that can affect fuel metering
• Addressing rough idle caused by incorrect air measurement
• Correcting hesitation or poor throttle response linked to sensor output
• Resolving engine management faults related to airflow signal errors
• Restoring proper OBD-related sensor feedback in supported applications

Installation Notes and Tips

Verify the vehicle’s engine management configuration and sensor module with housing before ordering. Confirm the exact BMW model year and build date where noted, especially for 2003 330Ci and 2003 330i applications that require a from 3/2003 match. Use the listed fitment data to confirm application before installation.

Quality Assurance

NTK is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. MG0109 is manufactured to meet or exceed OE specifications and is validated through thermal shock, vibration, and OBD testing.