Hella 009149671 Mass Air Flow Sensor

Hella Mass Air Flow Sensor for Volkswagen

Hella part number 009149671 is a mass air flow sensor for select Volkswagen applications. It uses a pipe-neck mounting type, a 6-connector design, and a 70 mm suction pipe connector diameter for the specified fitments.

Key Features

• Mass air flow sensor for emission control and engine management systems
• Pipe-neck mounting type for the listed Volkswagen applications
• 6 electrical connectors
• 70 mm suction pipe connector diameter
• Hella 009149671 replacement part

Detailed Description

This Hella mass air flow sensor measures incoming air so the engine control system can calculate fuel delivery more accurately. For Volkswagen Golf, Volkswagen Jetta, and Volkswagen Passat applications, the sensor configuration is listed with a pipe-neck mount, 6 connectors, and a 70 mm suction pipe connector diameter. If you are replacing a failing Hella 009149671 unit, matching the connector count and inlet diameter is important for proper fitment.

This part cross-references Delphi AF10053 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation during acceleration
• Check engine light related to air metering faults
• Poor fuel trim behavior from a contaminated or failing sensor
• Driveability issues on Volkswagen Golf, Jetta, and Passat models

Installation Notes and Tips

• Verify the pipe-neck mounting style before ordering.
• Confirm the 6-connector electrical plug matches the vehicle harness.
• Check the 70 mm suction pipe connector diameter against the intake tube.
• Inspect the intake tract for leaks or contamination before installing the new sensor.
• Use the vehicle fitment details exactly as listed for 1996-1999 Volkswagen applications.

Quality Assurance

Hella is an established automotive parts brand with broad OE and aftermarket coverage. This sensor is listed for 1997 and 1999 Volkswagen Golf, 1997-1999 Volkswagen Jetta, and 1996-1997 Volkswagen Passat applications, with fitment details provided to support accurate replacement selection.