Walker
Walker Mass Air Flow Assembly

Walker 245-1222 Mass Air Flow Sensor

Brand Walker 245-1222
Connector Gender Female
Housing Included Yes
Mounting Hardware Included No
Terminal Quantity 5
Product line Walker Mass Air Flow Assembly
Fits Audi · 11 vehicles

OE-standard quality. Built to meet or exceed OEM specifications.

Mass air flow sensor. Measures incoming air for precise engine management.

5-terminal connector. Female connector for a secure electrical connection.

Cross-references Bosch 0280218067, Spectra Premium MA294 and Standard Ignition MAS0318 for the same application. See all 12.

$100.33Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $100.33
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Mass Air Flow Assembly 245-1222

Walker Mass Air Flow Assembly 245-1222 is a direct-fit mass air flow sensor assembly for select Audi applications. It is built with a housing included and a 5-terminal female connector, making it a practical replacement for restoring accurate airflow signal input to the engine management system.

Key Features

  • Mass air flow sensor assembly from Walker
  • Housing included for a complete sensor assembly replacement
  • 5-terminal female connector
  • OE-style fitment for select Audi S4, S6, and S8 applications
  • Walker part number 245-1222 for easy identification

Product Details

Walker Products has supplied fuel system and engine management components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards and specifications. The Walker Mass Air Flow Assembly line is built for accurate vehicle application coverage and dependable replacement performance. Part number 245-1222 is listed for 2004-2009 Audi S4, 2002-2003 Audi S6, and 2001-2003 Audi S8 applications, making it a fitment-specific solution for Audi mass air flow sensor replacement needs. This part cross-references Bosch 0280218067 for the same application.

Common Issues This Part May Address

  • Rough idle caused by incorrect airflow signal readings
  • Hesitation or poor throttle response during acceleration
  • Check engine light related to mass air flow sensor faults
  • Fuel trim problems from inaccurate air measurement
  • Driveability issues on Audi S4, Audi S6, and Audi S8 models

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. Confirm vehicle year and model against the listed fitment for 2004-2009 Audi S4, 2002-2003 Audi S6, and 2001-2003 Audi S8. Inspect the intake tract for contamination, damaged wiring, or air leaks before replacing the sensor assembly. Use the correct diagnostic procedure after installation to confirm airflow readings and engine performance.

Quality Assurance

Walker Products is an ISO 9001/IATF 16949 certified manufacturer with in-house manufacturing, product management, and engineering support. The company states its engine management components are produced to meet or exceed OEM standards and specifications.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009AudiS44.2LV8N/AWalker Mass Air Flow Assembly
2008AudiS44.2LV8N/AWalker Mass Air Flow Assembly
2007AudiS44.2LV8N/AWalker Mass Air Flow Assembly
2006AudiS44.2LV8N/AWalker Mass Air Flow Assembly
2005AudiS44.2LV8N/AWalker Mass Air Flow Assembly
2004AudiS44.2LV8N/AWalker Mass Air Flow Assembly
2003AudiS64.2LV8N/AWalker Mass Air Flow Assembly
2003AudiS84.2LV8N/AWalker Mass Air Flow Assembly
2002AudiS64.2LV8N/AWalker Mass Air Flow Assembly
2002AudiS84.2LV8N/AWalker Mass Air Flow Assembly
2001AudiS84.2LV8N/AWalker Mass Air Flow Assembly
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 0280218067Spectra Premium — MA294Standard Ignition — MAS031822117191789121342947410120077133471K077133471KX0986280219MF21171MF21171N