Hitachi MAF5115 Mass Air Flow Sensor

Hitachi MAF5115 Mass Air Flow Sensor

The Hitachi MAF5115 mass air flow sensor measures incoming air volume and airflow characteristics so the engine control system can maintain accurate fuel delivery and emissions performance. Built with precision sensing elements and quality components, it is calibrated for specific vehicle applications and tested for airflow accuracy.

Compatible with 2014-2018 BMW 328d, 2014-2018 BMW 328d xDrive, and 2015-2017 BMW X3, this sensor supports OE-style operation for diesel engine management. The Hitachi MAF5115 is a direct-fit emission control sensor for BMW applications that require precise airflow measurement.

Key Features

• Measures the amount and characteristics of air entering the engine
• Calibrated for each application for accurate airflow readings
• 100% airflow tested for performance verification
• Uses precision elements and high-quality components for durability
• Protected circuitry helps support reliable sensor operation
• OE-approved design for emission control applications

Detailed Description

Hitachi MAF5115 is a mass air flow sensor engineered for BMW diesel applications where accurate intake-air measurement is critical. By reporting airflow data to the engine management system, it helps maintain proper fueling, drivability, and emissions control. This part cross-references Delphi AF10532 for the same application.

Fits 2014-2018 BMW 328d, N/A. Fits 2014-2018 BMW 328d xDrive, N/A. Fits 2015-2017 BMW X3, N/A. The part number MAF5115 is commonly searched for BMW 328d and BMW X3 airflow sensor replacement needs.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Check engine light related to mass air flow sensor faults
• Poor fuel metering from incorrect intake-air data
• Reduced throttle response from contaminated or failing sensor output
• Emissions test failures tied to airflow measurement errors

Installation Notes and Tips

Install the sensor in the original air intake location and verify the connector style and housing match the vehicle application before replacement. Inspect the intake tract for leaks, dirt, or oil contamination that can affect sensor readings. After installation, clear diagnostic trouble codes and confirm stable idle and airflow data with a scan tool.

Quality Assurance

Hitachi manufactures this MAF sensor with application-specific calibration, airflow testing, and protected circuitry to support consistent OE-level performance. The MAF5115 is built for emission control use on BMW 328d, BMW 328d xDrive, and BMW X3 applications.