Description
Audi A3 8P 1.6 TDI Air Flow Sensor Mass Meter Sensor Pipe Hose is a component from the Air and fuel intake sensors group, designed for diesel engines. It ensures precise measurement of the intake air volume, which allows the engine control unit to properly dose fuel and ensures stable operation of the power unit.
Specifications and technical data
- SKU: 3C0129363
- Mark: Audi
- Condition: Used
- OEM Part Number: 3C0129363
- Substitutable numbers: 3C0129363, 3C0 129 363
- Fuel type: Diesel
- Category: Air Intake & Fuel Sensors
Purpose and function in the intake system
The presented component is designed to work with the 1.6 TDI unit in the Audi A3 8P, where it is responsible for the accurate measurement of the air mass flowing through the intake system. A correct reading of this parameter is crucial for the operation of a diesel engine, as it affects:
- proper fuel dosing by the engine control unit,
- stable idle speed,
- smooth acceleration without jerking,
- maintaining appropriate exhaust emission parameters.
The component combines a section of the intake hose and the flow sensor, which facilitates installation and reduces the risk of leaks in this part of the system.
Benefits of using an original Audi component
As a part intended for the Audi brand, the Audi A3 8P 1.6 TDI Air Flow Sensor Mass Meter Sensor Pipe Hose is matched to the factory geometry of the intake system in the A3 8P 1.6 TDI. This means:
- secure fit with existing connectors and clamps,
- correct positioning of the measuring element in the air stream,
- electrical compatibility with the wiring harness and engine control unit,
- preservation of factory injection maps without the need for adapting non-factory solutions.
Thanks to this, it is possible to restore the proper operation of the intake and injection system without interfering with the controller software.
Technical characteristics and compatibility with the Diesel engine
The sensor has been developed for units powered by Diesel, where the accuracy of air measurement has a direct impact on the combustion process. In TDI engines, an incorrect signal from the flow sensor can result in:
- increased fuel consumption,
- loss of power and flexibility,
- excessive exhaust smoke,
- appearance of errors in the engine control unit.
Using the correct component from this group allows you to limit these phenomena and maintain the operation of the power unit within the parameters specified by the manufacturer.
Condition, origin, and service application
The offered air flow sensor with hose comes from dismantling and is marked as used. This is a solution often chosen in professional workshops for maintenance repairs when the goal is to maintain the original specification at reasonable service costs. The component will work well both for a typical replacement of a damaged sensor and for diagnosing engine performance problems, such as power loss or unstable idle.
Selection by numbers and technical support
For the correct selection of parts, it is worth using factory markings, such as the OEM part number or available interchangeable numbers. This allows you to ensure that the offered component will be compatible with the specific engine version and vehicle year. In case of doubt, data from service catalogs or a comparison with the component removed from the car may also be useful.
To better understand the relationships between air flow and fuel dosing as well as the operation of injectors and pumps, it is worth reading the guide material Fuel system – injectors, pumps and fuel tank: maintenance and regeneration, which discusses diagnostics and the selection of components by OEM numbers.
Service expansion within the intake system
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 additional intake hoses, air temperature sensors, or measuring elements in the supply path, check the available parts in the Audi Air and fuel intake sensors category.
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