Standard Ignition MAS0289 Mass Air Flow Sensor

Reliable Mass Air Flow Sensor for BMW 325Ci, 325i, X3, and Z4

The Standard Ignition MAS0289 Mass Air Flow Sensor is designed to provide accurate airflow measurement for select BMW models. This sensor helps maintain optimal engine performance and emissions control by delivering precise data to the engine control unit.

• Compatible with BMW 325Ci, 325i, X3, and Z4 models
• OEM-quality replacement part number MAS0289
• Ensures accurate air intake measurement for efficient engine operation
• Direct fit sensor for easy installation
• Supports emission control system functionality

Product Overview and Functionality

The Standard Ignition MAS0289 Mass Air Flow Sensor is a critical component in the emission control system of BMW vehicles, including the 325Ci, 325i, X3, and Z4. It measures the volume and density of air entering the engine, allowing the engine control unit to adjust fuel injection and ignition timing accordingly. This precise measurement helps maintain fuel efficiency, reduce emissions, and support smooth engine performance.

Common Applications and Problem Resolution

• Corrects rough idling or engine hesitation caused by inaccurate airflow readings
• Resolves poor fuel economy linked to faulty mass air flow sensors
• Eliminates check engine light triggers related to air intake issues
• Improves acceleration response and overall drivability
• Supports emission compliance by ensuring proper air-fuel mixture

Installation Notes and Tips

Installation of the Standard Ignition MAS0289 sensor is straightforward with a direct fit design for BMW 325Ci, 325i, X3, and Z4 models. Before installation, disconnect the battery and ensure the engine is cool. Remove the old sensor carefully to avoid damage to the air intake system. After installing the new sensor, clear any diagnostic trouble codes and verify proper operation through a test drive.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The MAS0289 Mass Air Flow Sensor undergoes rigorous quality control testing. This part is backed by a limited warranty, providing coverage against defects in materials and workmanship for a specified period.