Audi A8 D4 A8 S8 4H Intake Hose Air Charge Intercooler Pipe Line 059145731CT

Audi A8 D4 A8 S8 4H Intake Hose Air Charge Intercooler Pipe Line is a forced induction system component designed for diesel engines, responsible for the stable routing of compressed air between the turbocharger and the intercooler. By maintaining the factory geometry of the hose, it ensures proper airflow, which translates into efficient operation of the 3.0 TDI unit and correct boost parameters. This is a practical solution for owners of Audi A8 and S8 D4/4H generation models who are looking for a technically matched component from the intake system group.

Specifications and technical data

• SKU: 059145731CT-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 059145731CT
• Substitutable numbers: 059145731CT, 059 145 731 CT
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Function and role of the intercooler hose in the 3.0 TDI engine

The intercooler hose in diesel units is responsible for transporting cooled compressed air from the air cooler to the intake manifold. In the case of the 3.0 TDI engine, this is crucial for:

• maintaining stable boost pressure across the entire RPM range,
• ensuring the correct amount of air for fuel mixture combustion,
• reducing power drops resulting from leaks or deformation of the hose,
• maintaining proper boost control operation and protecting the turbocharger.

A functional intercooler hose helps maintain smooth acceleration, consistent diesel engine operation, and stable exhaust emission parameters.

Compatibility with Audi A8 D4 / S8 4H models

Audi A8 D4 A8 S8 4H Intake Hose Air Charge Intercooler Pipe Line has been designed with a specific platform and powertrain in mind, allowing for precise fitment to factory mounts and hose routing in the engine bay. The appropriate geometry of the element minimizes the risk of collision with other components and facilitates installation during service.

By maintaining the original design concept of the intake system, the use of this hose allows for the retention of factory airflow parameters, which is important both in daily operation and under higher engine loads.

Characteristics of the used component

The offered intercooler hose comes from a group of used parts, which is a cost-effective solution while maintaining the manufacturer's original specifications. For many Audi users, this means the ability to restore full efficiency to the forced induction system without the need to invest in a new component, while maintaining compliance with the factory design.

Choosing a used element from this group is particularly sensible in situations where the existing hose has suffered mechanical damage, delamination, or leaks, and the priority is technically correct fitment for the specific model and engine version.

The importance of a proper intercooler hose in the intake system

In diesel engines, such as the 3.0 TDI, the tightness and correct cross-section of the intercooler hose have a direct impact on:

• vehicle performance (torque and acceleration dynamics),
• fuel consumption in city and highway conditions,
• engine control system operation, including fuel dose corrections,
• reducing the risk of intake air overheating.

Replacing a damaged or leaking hose with a functional element from the same design group allows for the restoration of stable forced induction system operating parameters and reduces the risk of secondary failures.

Part selection by numbers and additional information

When selecting an intercooler hose for an Audi A8 or S8 D4/4H generation, it is crucial to use the manufacturer's markings and reference numbers, which allow for verifying compatibility with the specific diesel engine version and vehicle configuration. The product description contains relevant identifiers in the specification section, which facilitate matching the element to a given car.

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 hoses, vacuum hoses, or forced induction pipes, check the available parts in the Audi hoses, lines, and pipes category.

For users considering the choice between original parts, replacements, and used components, an article discussing the differences in costs, quality, and fitment may be helpful – more information can be found in the material: Original, replacement, or used – which car parts are the most cost-effective?.