Standard Ignition MAS0259 Mass Air Flow Sensor

Reliable Mass Air Flow Sensor for BMW Models

The Standard Ignition MAS0259 Mass Air Flow Sensor is designed to provide accurate airflow measurement for BMW vehicles including the 325Ci, 325i, 330i, X3, and Z4. This sensor helps maintain optimal engine performance and emissions control by delivering precise data to the engine control unit.

• Compatible with BMW 325Ci, 325i, 330i, X3, and Z4 models
• OEM-quality replacement part number MAS0259
• Ensures accurate air intake measurement for efficient engine operation
• Direct fit sensor for straightforward installation
• Supports emission control system functionality

Product Details and Functionality

The Standard Ignition MAS0259 Mass Air Flow Sensor is engineered to measure the volume and density of air entering the engine. This data is critical for the engine control unit to calculate the correct fuel injection and ignition timing. Designed specifically for select BMW models, this sensor helps maintain engine efficiency and supports emission standards compliance. The part number MAS0259 corresponds to a direct replacement sensor that meets or exceeds original equipment specifications.

Common Applications and Problem Resolution

• Restores proper air-fuel mixture for BMW 325Ci, 325i, 330i, X3, and Z4 engines
• Resolves rough idling and engine hesitation issues
• Eliminates check engine light triggers related to airflow sensor faults
• Improves fuel economy by providing accurate airflow data
• Supports smooth acceleration and engine responsiveness

Installation Notes and Tips

Installation of the Standard Ignition MAS0259 sensor is straightforward with a direct fit design for compatible BMW models. Before installation, ensure the engine is cool and disconnect the battery to prevent electrical issues. Carefully remove the old sensor and clean the mounting area to avoid contamination. Reconnect the electrical connector securely and verify sensor operation after installation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet strict quality standards, ensuring reliable performance and durability. The MAS0259 Mass Air Flow Sensor undergoes rigorous testing to comply with OEM specifications. This part typically includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term use.