Bosch 0280217117 Mass Air Flow Sensor

Bosch Mass Air Flow Sensor for VW and Audi

The Bosch Mass Air Flow Sensor, part number 0280217117, is an OE-style replacement built for accurate airflow measurement in select Audi and Volkswagen applications. Bosch supplies original-equipment components, and this sensor is engineered to stay close to factory specification so the engine control system can calculate fuel delivery correctly.

Compatible with Audi A4, Audi A4 Quattro, Volkswagen Cabrio, Volkswagen Passat, Volkswagen Golf, and Volkswagen Jetta applications listed below, this Bosch Mass Air Flow Sensor (New) supports proper drivability and emissions system performance.

Key Features

• Bosch original-equipment manufacturer quality
• Mass Air Flow Sensor for emission control and engine management
• Black plastic housing
• Direct replacement style for select Audi and Volkswagen models
• Part number 0280217117 for accurate identification

Product Details

This Bosch Mass Air Flow Sensor measures incoming air so the engine computer can maintain the correct air-fuel ratio. When airflow data is inaccurate, the vehicle may run rich or lean, which can affect idle quality, throttle response, fuel economy, and emissions readiness. The Bosch 0280217117 is intended for the listed Audi and Volkswagen fitments, including 1999-2000 Audi A4 Quattro, 1999 Audi A4, 1997-1999 Volkswagen Cabrio, 1998-1999 Volkswagen Passat, 1996-1998 Volkswagen Golf, and 1996-1998 Volkswagen Jetta. This part cross-references Volkswagen 037906461C for the same application.

Common Issues This Sensor May Address

• Check engine light related to airflow or mixture faults
• Rough idle or unstable engine operation
• Poor acceleration or hesitation under load
• Incorrect fuel trim readings from a failing airflow sensor
• Emissions test failures caused by inaccurate air measurement

Installation Notes and Tips

Verify the part number and chassis break notes before ordering, especially for 1998 Audi A4 and A4 Quattro, 1996 Volkswagen Cabrio, and 1996 Volkswagen Passat applications with chassis-specific fitment. Inspect the intake tract, air filter housing, and electrical connector before installation. After replacement, clear diagnostic trouble codes and confirm that the engine runs smoothly at idle and during acceleration.

Quality Assurance

Bosch is an original-equipment supplier, and this sensor is built to match factory-level airflow measurement requirements for the listed vehicles. Using a sensor that stays close to OE specification helps reduce the risk of a check engine light caused by airflow signal deviation.