Audi Q7 4L 3.0 TDI CRCA Intercooler Split Pressure Hose Pipe Line Tube 4L0145795

Audi Q7 4L 3.0 TDI CRCA Intercooler Split Pressure Hose Pipe Line Tube is an original intake system component, belonging to the Lines, hoses and pipes group, designed for operation in the turbocharging system of a diesel engine. Engineered by the vehicle manufacturer, it ensures stable routing of compressed air between the intercooler and other system components, which translates into predictable engine performance parameters.

Specifications and technical data

• SKU: 4L0145795
• Mark: Audi
• Condition: Used
• OEM Part Number: 4L0145795
• Substitutable numbers: 4L0145795, 4L0 145 795
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The described pressure hose is a component connecting sections of the turbocharging system in the 3.0 TDI engine, responsible for transporting compressed air from the intercooler at the appropriate pressure. The correct shape and internal diameter of the hose allow for maintaining proper flow, reducing pressure drops, and preserving stable torque characteristics across the full load range.

Thanks to its factory-fit design for the Audi Q7 4L, the hose works with original clamps and connectors, which minimizes the risk of leaks, connection failures, and uncontrolled power loss. This is particularly important in turbocharged engines, where the tightness of the intake system has a direct impact on turbocharger operation and fuel consumption.

Construction and fitment for Audi Q7 4L 3.0 TDI

The hose has been designed as a component dedicated to a specific body and engine configuration, ensuring precise routing in the engine bay and no interference with other sub-assemblies. The properly selected geometry of the hose allows for:

• maintaining a stable position relative to the intercooler and intake manifold,
• reducing stress resulting from engine operation and body vibrations,
• limiting the risk of chafing against adjacent components.

The original Audi origin means compliance with factory quality standards, which facilitates installation and subsequent operation without the need for system modifications.

Component condition and operational aspects

The offered hose is in used condition, which allows for an economical replacement of the component while maintaining compliance with factory specifications. For turbocharging systems in TDI engines, using an original used hose often represents a favorable compromise between cost and durability, especially for vehicles used intensively or with higher mileage.

Replacing the intercooler pressure hose is recommended in situations where symptoms such as power loss, smoke, oil leaks near intake connections, or boost pressure-related errors appear. Using the correct component from the Lines, hoses and pipes group allows for restoring proper system performance without interfering with other sub-assemblies.

Benefits of using an original intercooler hose

Selecting a hose dedicated to the Audi Q7 4L 3.0 TDI provides a range of practical service and operational benefits:

• factory fitment to the intake system without the need for modifications,
• stable routing of compressed air across the entire load range,
• reduced risk of leaks compared to aftermarket parts with universal geometry,
• easier diagnostics of potential turbocharging system faults.

For workshops and private users, this means faster installation, predictable repair results, and the ability to maintain consistency with other intake system components.

Related system components and additional information

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 flexible intake sections, rigid pressure pipes, or return lines, check the available parts in the Audi lines, hoses and pipes category.

When planning broader service work, especially before the winter season, it is worth considering other sub-assemblies exposed to temperature changes and stress. Practical tips on selecting used components, checklists, and a discussion of technical parameters can be found in the article Winter essentials: which used car parts are worth checking and replacing before the frost?.