Audi A8L 4H 3.0 TDI CDTA Diesel Intercooler Pipe Hose Line Tube 4H0145762H

Audi A8L 4H 3.0 TDI CDTA Diesel Intercooler Pipe Hose Line Tube is a component from the Lines, hoses and pipes group, designed for the forced induction system in a diesel engine. It is responsible for the stable routing of compressed air between the intercooler and subsequent intake components, which has a direct impact on the engine's performance and efficiency. This solution is intended for users who expect technically correct, factory-spec intake system geometry in an Audi A8L with a diesel engine.

Specifications and technical data

• SKU: 4H0145762H
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0145762H
• Substitutable numbers: 4H0145762H, 4H0 145 762 H
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The Audi A8L 4H 3.0 TDI CDTA Diesel Intercooler Pipe Hose Line Tube operates in a demanding environment of high boost pressure and variable temperatures. Its task is to provide a tight and stable path for cooled air from the intercooler to the rest of the intake system, ensuring the diesel engine receives the correct amount of air under all load conditions. A correctly selected component from this group reduces pressure drops, minimizes the risk of leaks, and supports smooth, predictable turbocharger operation.

Construction and fitment for Audi

The intercooler pipe belongs to the Lines, hoses and pipes category, meaning it has been designed for flow systems where shape, diameter, and proper routing are critical. The design, tailored to the Audi A8L 4H platform, ensures proper positioning relative to other engine bay components, without interference with other parts. As a result, installation is straightforward, and the intake system maintains its factory flow geometry.

Benefits for the diesel engine

In diesel engines, stable airflow is of particular importance for performance and exhaust emissions. Using a properly selected intercooler pipe:

• supports the maintenance of correct boost pressure across the entire rev range,
• reduces the risk of power loss resulting from leaks or hose deformation,
• helps maintain predictable throttle response and smooth turbine operation,
• promotes stable combustion parameters in the diesel engine.

Characteristics of the used component

The offered intercooler pipe is a used part, which allows for an economical repair of the intake system while maintaining Audi's factory design concept. This type of component is particularly attractive for servicing vehicles that are several or more years old, where a reasonable balance between cost and functionality is important. A used component from the lines and pipes group can effectively replace a worn or damaged section of the intake, restoring proper airflow in the forced induction system.

Support for the maintenance and modernization of youngtimers

Owners of older Audi A8L models often combine routine maintenance with staged powertrain upgrades. Used components from the lines and pipes group allow you to keep the car in good technical condition without overstretching your budget. If you want to better plan the refurbishment of your car from the 1998–2012 model years and see practical examples of using used parts in premium brands, check out the article The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.

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, flexible pressure hoses, or rigid pipes for charge air, check out the available parts in the Audi lines, hoses and pipes category.