Delphi AF10526 Mass Air Flow Sensor
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Delphi

Delphi AF10526 Mass Air Flow Sensor

Brand Delphi AF10526
Color Black
Connector Gender Female
Connector Quantity 1
Connector Shape Oval
Housing Included Yes
Item Grade Standard Replacement
Mounting Type Bolt-On
Package Contents Mass Air Flow Sensor - Complete Assembly, Instruction Sheet
Terminal Gender Male
Terminal Quantity 5
Terminal Type Blade
Wiring Harness Included No
Fits BMW · 13 vehicles

Standard replacement. Bolt-on mass air flow sensor with complete assembly included.

OE heritage. Built from 100 years of OE experience and supplier knowledge.

Complete assembly. Includes housing for a ready-to-install sensor package.

Cross-references Bosch 0280218135, Cardone Reman 74-10129 and Spectra Premium MA437 for the same application. See all 10.

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Delphi AF10526 Mass Air Flow Sensor

The Delphi AF10526 mass air flow sensor is a standard replacement complete assembly for select BMW applications. Built from Delphi’s OE heritage and supplier experience, it supports accurate airflow measurement for consistent engine management on the vehicles listed below.

Key Features

  • Mass air flow sensor complete assembly
  • Standard replacement grade
  • Black housing with bolt-on mounting
  • Female oval connector with 5 male blade terminals
  • Housing included; wiring harness not included
  • Package includes the sensor assembly and instruction sheet

Detailed Description

Delphi AF10526 is a direct-fit emission control sensor for BMW models that rely on precise intake air measurement for fuel and drivability control. The unit uses a single oval connector, bolt-on mounting, and a complete assembly design to match the original sensor configuration on supported vehicles. This part cross-references Bosch 0280218135 for the same application.

Compatible With 2004-2006 BMW X5, N/A; 2004-2005 BMW 545i, N/A; 2004-2005 BMW 645Ci, N/A; 2004-2005 BMW 745i, N/A; 2004-2005 BMW 745Li, N/A; 2003 BMW 745i, N/A; and 2003 BMW 745Li, N/A from 09/2003. The Delphi AF10526 is also referenced by part number AF10526 for fitment verification and catalog matching.

Common Issues This Sensor Can Address

  • Rough idle caused by inaccurate airflow readings
  • Hesitation or poor throttle response during acceleration
  • Check engine light related to air metering faults
  • Fuel trim problems from incorrect intake air data
  • Driveability concerns on BMW X5, 545i, 645Ci, 745i, and 745Li applications

Installation Notes and Tips

Verify connector shape, terminal count, and mounting style before installation. Confirm the vehicle year and engine application against the fitment list, especially for 2003 BMW 745i and 745Li models built from 09/2003. Inspect the intake tract for leaks or contamination that could affect sensor readings after replacement.

Quality Assurance

Delphi builds aftermarket parts using more than 100 years of OE experience and knowledge gained from supplying major automakers. That OE background is reflected in the AF10526’s standard replacement design and application-specific construction.

Related reading

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2006BMWX5N/ACompatible with all model vehicles.
2005BMW545iN/ACompatible with all model vehicles.
2005BMW645CiN/ACompatible with all model vehicles.
2005BMW745iN/ACompatible with all model vehicles.
2005BMW745LiN/ACompatible with all model vehicles.
2005BMWX5N/ACompatible with all model vehicles.
2004BMW545iN/ACompatible with all model vehicles.
2004BMW645CiN/ACompatible with all model vehicles.
2004BMW745iN/ACompatible with all model vehicles.
2004BMW745LiN/ACompatible with all model vehicles.
2004BMWX5N/ACompatible with all model vehicles.
2003BMW745iN/AComplete Assembly; From 09/2003
2003BMW745LiN/AComplete Assembly; From 09/2003
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 0280218135Cardone Reman — 74-10129Spectra Premium — MA437Standard Ignition — MAS041313 62 7 566 988MA1245MF21177NMQ6340MQ7401XTP410129