Spectra MA484 Mass Air Flow Sensor

Spectra MA484 Mass Air Flow Sensor

The Spectra MA484 mass air flow sensor is a standard replacement part for select BMW diesel applications. It is built with a programmable ceramic circuit board and a premium silicon coating to help protect the sensor from under-hood heat swings and vibration, while the platinum resistance thermometer design supports quicker signal response and consistent airflow measurement.

Compatible with BMW X5, 535d, 535d xDrive, and 740Ld xDrive applications, the MA484 is a direct-fit emission control sensor for accurate engine management. This part cross-references Delphi AF10504 for the same application.

Key Features

• Standard replacement mass air flow sensor
• Programmable ceramic circuit board construction
• Premium silicon coating for added protection against heat and vibration
• Platinum resistance thermometer sensor design
• Black plastic housing
• 5-terminal blade connection with 1 oval male connector
• No housing, wiring harness, mounting bracket, or mounting hardware included

Detailed Description

Spectra MA484 is engineered for BMW air intake measurement systems that rely on precise airflow data for fuel delivery and drivability control. The sensor’s circuit design is focused on faster response and stable output, helping the engine control module read incoming air more consistently. For BMW X5, BMW 535d, BMW 535d xDrive, and BMW 740Ld xDrive fitments, this mass air flow sensor supports accurate replacement of a worn or failing original unit.

Part number MA484 is also referenced by several interchange numbers, including Standard Ignition MAS0483 and Delphi AF10504, which helps when matching the correct sensor for the application. Use MA484 when you need a replacement MAF sensor for BMW diesel intake systems that require the specified oval 5-pin connector layout.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or sluggish throttle response
• Check engine lights related to mass air flow sensor faults
• Incorrect fuel trim from inconsistent intake air measurement
• Driveability issues on BMW X5, 535d, 535d xDrive, and 740Ld xDrive models

Installation Notes and Tips

• Verify connector shape, terminal count, and mounting style before installation.
• Inspect the intake tract for leaks, contamination, or damaged wiring before replacing the sensor.
• Transfer no housing or bracket components, as they are not included.
• Clear diagnostic trouble codes after installation and confirm live airflow data during a road test.

Quality Assurance

Spectra manufactures this sensor as a standard replacement emission control component with materials selected to handle heat and vibration in the engine bay. The MA484 is built to meet the fitment and electrical requirements of the listed BMW applications.

Fitment

• Fits 2014-2018 BMW X5, N/A
• Fits 2014-2016 BMW 535d, N/A
• Fits 2014-2016 BMW 535d xDrive, N/A
• Fits 2015 BMW 740Ld xDrive, N/A