Delphi AF10451 Mass Air Flow Sensor

Delphi AF10451 Mass Air Flow Sensor

Delphi AF10451 is a standard replacement mass air flow sensor built for direct-fit service on select BMW applications. It uses a bolt-on mounting style, a 3-terminal blade connection, and an included housing for a complete assembly replacement.

Key Features

• Mass air flow sensor complete assembly with housing included
• Black housing with oval female connector and 3 male blade terminals
• Bolt-on mounting for straightforward replacement service
• Standard replacement grade for OE-style fit and function
• Package includes the mass air flow sensor assembly and instruction sheet

Application Details

Compatible With BMW M5, BMW M6, BMW 325Ci, BMW 330Ci, BMW X3, BMW X5, BMW 325i, BMW 330i, BMW 525i, and BMW 530i applications listed below. Fits 2006-2010 BMW M5, N/A; Fits 2006-2010 BMW M6, N/A; Fits 2004-2006 BMW 325Ci, N/A; Fits 2004-2006 BMW 330Ci, N/A; Fits 2004-2006 BMW X3, N/A; Fits 2005-2006 BMW X5, N/A; Fits 2004-2005 BMW 325i, N/A; Fits 2004-2005 BMW 330i, N/A; Fits 2004-2005 BMW 525i, N/A; Fits 2004-2005 BMW 530i, N/A; Fits 2004 BMW X5, N/A; Fits 2003 BMW 325Ci, N/A; Fits 2003 BMW 325i, N/A; Fits 2003 BMW 330Ci, N/A; Fits 2003 BMW 330i, N/A.

Delphi builds this AF10451 using OE experience gained from supplying major automakers, with aftermarket construction informed by original-equipment engineering knowledge. This part cross-references Standard Ignition MAS0285 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow measurement
• Hesitation or stumble during acceleration
• Check engine light related to air metering faults
• Poor fuel control from a failing MAF sensor
• Driveability issues after intake or emission system service

Installation Notes

Verify connector shape, terminal count, and housing style before installation. This Delphi AF10451 uses a bolt-on design with one oval female connector and no wiring harness included. Confirm the vehicle is equipped with the emission control air pump configuration shown in the fitment notes before ordering.

Quality Assurance

Delphi draws on more than a century of OE experience, and that background is reflected in the design and construction of this replacement sensor. The AF10451 is built as a standard replacement part for the listed BMW fitments.