Walker 245-2203 Mass Air Flow Sensor

Walker Mass Air Flow Sensor for Audi

Restore accurate airflow measurement with the Walker Mass Air Flow Sensor, part number 245-2203. This OE-style replacement is built for select Audi applications and supports proper fuel delivery and engine management performance.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering processes focused on meeting or exceeding OEM standards. The Walker Mass Air Flow Sensor line is backed by product management, technical support, and ISO 9001/IATF16949 certified quality systems.

Key Features

• Part number 245-2203 for select Audi fitments
• 3-terminal female connector
• Mounting hardware included
• Housing not included
• Engine sensor replacement for mass air flow measurement

Detailed Description

The Walker Mass Air Flow Sensor 245-2203 is a direct-fit engine management component for select Audi A4, A4 Quattro, A6, A6 Quattro, Cabriolet, 90, 90 Quattro, 100, and 100 Quattro applications. It measures incoming air so the engine control system can calculate fuel delivery more accurately, helping maintain drivability and emissions performance. This part number 245-2203 is a practical choice when replacing a worn or failing mass air flow sensor on compatible Audi vehicles.

This part cross-references 105055H7 and 7450038 for the same application.

What It Helps Fix

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Hard starting related to air/fuel calculation errors
• Reduced fuel economy from incorrect sensor input
• Check engine light concerns tied to mass air flow sensor faults

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. This sensor uses a female connector and 3 terminals, and the housing is not included. Confirm the exact Audi fitment by year and chassis notes where listed, including 1993 Audi 100 Quattro from chassis/VIN 4AP022307 and 1993 Audi 90 from chassis/VIN 8CP191968.

• Fits 1995-1998 Audi A6 Quattro, N/A
• Fits 1994-1998 Audi Cabriolet, N/A
• Fits 1996-1997 Audi A4, N/A
• Fits 1996-1997 Audi A4 Quattro, N/A
• Fits 1995-1997 Audi A6, N/A
• Fits 1994-1995 Audi 90, N/A
• Fits 1993-1995 Audi 90 Quattro, N/A
• Fits 1993-1994 Audi 100, N/A
• Fits 1994 Audi 100 Quattro, N/A
• Fits 1993 Audi 100 Quattro, N/A; chassis/VIN 4AP022307
• Fits 1993 Audi 90, N/A; chassis/VIN 8CP191968

Quality Assurance

Walker Products manufactures engine sensors and fuel system components to meet or exceed OEM standards and specifications. The company supports production with in-house engineering, product management, and technical documentation to help maintain application accuracy for Audi A4, A6, Cabriolet, 90, and 100 series fitments.