Audi Volkswagen 2.0 TFSI 3.6 VR6 Petrol Engine Air Flow Mass Meter 03H906461

Audi Volkswagen 2.0 TFSI 3.6 VR6 Petrol Engine Air Flow Mass Meter is a precision intake system component responsible for accurately measuring the amount of air intake in petrol engines. A properly selected mass air flow sensor supports stable engine operation, correct fuel dosing, and smooth performance at idle and under load. By using a solution from the Air and fuel intake sensors group, it is possible to maintain the correct mixture parameters and reduce the risk of engine control unit errors.

Specifications and technical data

• SKU: 03H906461
• Mark: Audi
• Condition: Used
• OEM Part Number: 03H906461
• Substitutable numbers: 03H906461, 03H 906 461, 0280218175
• Fuel type: Petrol
• Category: Air Intake & Fuel Sensors

Function and role of the mass air flow sensor in a petrol engine

The mass air flow sensor in 2.0 TFSI and 3.6 VR6 engines is responsible for the continuous measurement of the air mass drawn through the intake system. Based on this data, the engine control unit selects the fuel dose, ignition timing, and auxiliary equipment operating strategy. A properly functioning sensor allows for maintaining:

• stable idle speed,
• smooth acceleration without jerking,
• optimal fuel consumption,
• lower exhaust emissions and proper catalytic converter operation.

In direct petrol injection engines, such as TFSI and VR6 units, air mass measurement precision is of particular importance for engine durability and driving comfort.

Construction and technical characteristics

The offered mass air flow sensor belongs to the Air and fuel intake sensors group, which means it works directly with the intake system and the engine control unit. The sensor's design is based on a measuring element placed in the airflow, which reacts to flow changes and transmits an electrical signal to the ECU. This allows for:

• accurate representation of the current engine load,
• correct fuel dose correction across the entire RPM range,
• better response to changes in accelerator pedal position.

The component is designed for petrol-powered engines, ensuring compatibility with the operating characteristics of 2.0 TFSI and 3.6 VR6 units in Audi and Volkswagen vehicles.

Application and compatibility selection

The mass air flow sensor is intended for intake systems in VAG group cars with petrol engines where precise air mass measurement is required. When selecting the component, it is crucial to compare the parameters with the original sensor and verify compliance with the vehicle's technical documentation. The product has dedicated manufacturer markings and interchangeable part numbers, which facilitates fitting to a specific engine configuration without the need for installation modifications.

As a used component, the mass air flow sensor is a reasonable choice when it is necessary to replace a damaged sensor while maintaining a favorable cost-to-functionality ratio. A properly selected and functional sensor helps eliminate typical symptoms of failure, such as power loss, increased fuel consumption, or an illuminated check engine light.

Benefits of using an original Audi sensor

Choosing a mass air flow sensor from the Audi OE group ensures the preservation of the engine's factory operating parameters. The most important advantages include:

• compatibility with engine control unit software – no need for adapting non-standard characteristics,
• secure fit to the stock intake system,
• stable measurement signals across the full range of RPM and load.

As a result, the fuel supply system can operate under conditions close to factory specifications, which translates into predictable vehicle behavior and easier diagnostics of potential faults in the future.

Condition, purpose, and practical tips

The offered component is in used condition, which allows for an economical repair of the intake system while maintaining the manufacturer's original specifications. Before installation, it is recommended to perform a standard check of the electrical system, intake hose tightness, and read any potential errors in the engine control unit to ensure that replacing the mass air flow sensor will resolve the reported symptoms.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other components from the same group, such as boost pressure sensors, air temperature sensors, or fuel measurement elements, check the available parts in the Audi Air and fuel intake sensors category.

More about choosing used electronics and sensors

When selecting a used mass air flow sensor, it is worth knowing the basic principles of assessing the condition of electronics and ways to verify compatibility with a specific vehicle model. Practical tips on purchasing used controllers, modules, and sensors can be found in the article The second life of electronics – when is it worth opting for used engine controllers, comfort modules, and parking sensors?, which will help you make an informed decision about choosing parts from the secondary market.