Audi A8 D4 Intercooler Pipe Hose Connector Pressure Sensor 3.0 TDI 4H0145673P

Audi A8 D4 Intercooler Pipe Hose Connector Pressure Sensor 3.0 TDI is an original intake system component, belonging to the Lines, Hoses and Pipes group, designed to operate in the demanding environment of a diesel engine. It ensures a leak-proof flow of compressed air to the intercooler and provides a stable mounting for the pressure sensor, which translates into correct engine control unit operation and consistent performance of the 3.0 TDI unit. Thanks to its factory geometry and connectors, it is a solution that is easy to install and technically matched to the design of the Audi A8 D4.

Specifications and technical data

• SKU: 4H0145673P-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0145673P
• Substitutable numbers: 4H0145673P, 4H0 145 673 P, 038906051C, 038 906 051 C, 0281002401, 0 281 002 401, 4H0145709S, 4H0 145 709 S, 4H0145737R, 4H0 145 737 R
• Part type: Pipe
• Category: Hoses, Lines & Pipes

Function and application in the 3.0 TDI intake system

The intercooler pipe integrated with the pressure sensor socket is responsible for the precise routing of compressed air between the turbocharger, intercooler, and intake manifold. The correct operation of this component has a direct impact on:

• stable boost pressure throughout the entire rev range,
• correct readings from the pressure sensor for the engine control unit,
• maintaining the proper dynamics and flexibility of the 3.0 TDI unit,
• reducing power drops resulting from intake system leaks. Thanks to the factory profile, the pipe maintains the correct flow cross-section, which supports efficient intercooler operation and helps maintain the optimal charge air temperature.

Construction, fitment, and installation

The component has been designed specifically for the engine bay of the Audi A8 D4 with the 3.0 TDI unit, taking into account limited space and the layout of other components. Properly shaped pipe sections and factory ends allow for:

• secure connection with other lines and intake system components,
• easier installation and removal during service,
• maintaining tightness under variable loads and operating temperatures. The line belongs to the Lines, Hoses and Pipes group, which means it works with other flexible and rigid elements of the intake and charge air cooling system, creating a coherent airflow system.

Benefits of using an original Audi component

Using an original intercooler pipe with a pressure sensor in the Audi A8 D4 allows for maintaining factory engine performance parameters. Key advantages include:

• precise fit to the body and engine accessories, without the need for modifications,
• maintaining the airflow characteristics intended by the manufacturer,
• correct cooperation with the pressure sensor and engine control system,
• reducing the risk of diagnostic errors related to incorrect boost pressure. The component in used condition is a good choice for vehicle service when you want to maintain the original specification while optimizing repair costs.

Condition and compatibility verification

The intercooler pipe with a pressure sensor is offered as a used part, which allows for an economical replacement of a damaged or leaking component in the Audi A8 D4 3.0 TDI. Before purchasing, it is worth verifying compatibility with your specific vehicle using the manufacturer's markings and information on interchangeable numbers available in the technical specifications section. If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as intake lines, vacuum hoses, or charge air cooling pipes, check the available parts in the Audi Lines, Hoses and Pipes category.

Additional technical support

When working in the engine bay, there is often a need for parallel maintenance of other systems, including air conditioning. To better plan service and avoid common mistakes when selecting used components, it is worth reading the guide on air conditioning compressors: Air conditioning compressor – symptoms of failure, causes, and safe replacement. This will allow you to consciously approach the replacement of engine accessory components and optimize the scope of service work.