Audi RS3 8V RSQ3 F3 S Turbo Intercooler Pipe Hose 2.5 TFSI 8V0145745B

Audi RS3 8V RSQ3 F3 S Turbo Intercooler Pipe Hose 2.5 TFSI is an original boost system component from the Lines, hoses and pipes category, designed to operate under the demanding conditions of a turbocharged engine. This used OEM part ensures a factory fit, stable airflow to the intercooler, and predictable intake system performance in Audi vehicles with a sporty character.

Specifications and technical data

• SKU: 8V0145745B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V0145745B
• Substitutable numbers: 8V0145745B, 8V0 145 745 B
• Category: Hoses, Lines & Pipes

Technical characteristics and purpose

The presented intercooler hose is designed as a component of the boost system in a turbocharged gasoline engine. It is responsible for the tight and stable routing of compressed air between the turbocharger and the intercooler or subsequent sections of the intake system, which has a direct impact on performance, throttle response, and the repeatability of the 2.5 TFSI unit's operating parameters.

As a part from the Lines, hoses and pipes group, this element is adapted to work under increased pressure and in variable temperatures typical of sporty Audi RS units. The design of the hose allows for the compensation of powertrain vibrations while maintaining the appropriate rigidity of the intake system.

Benefits of using an original intercooler hose

Using an original intercooler hose instead of a worn or leaking section of the intake system helps restore proper airflow and reduces the risk of power drops or overboost. In practice, this means:

• stable boost pressure across the entire rev range,
• more repeatable performance during dynamic driving,
• reduced risk of ECU errors related to intake leaks,
• better compatibility with factory engine software.

Thanks to its factory origin, the hose maintains the correct geometry, which facilitates installation and minimizes stress in the system. This is particularly important in vehicles with increased power, where the boost system operates under higher loads.

Part condition and service application

The item is offered as a used part, which allows for an economical repair of the intake system while maintaining original build quality. This type of solution is often chosen for post-accident repairs, replacing damaged hoses after a turbocharger failure, or when servicing the boost system in vehicles driven dynamically.

In practice, a used intercooler hose works well as a factory replacement in situations where it is crucial to maintain the original routing of the lines, compatibility with mounts, and the stock airflow characteristics.

Compatibility and component group

The intercooler pipe hose belongs to the same group of components as other pressure lines, flexible connectors, and intake system pipes. When planning a repair, it is worth paying attention to the condition of adjacent sections, clamps, and connections to avoid future leaks and the need for further intervention in the system.

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.

Why choose used OEM parts?

Choosing a used original part is a reasonable compromise between cost and quality. Factory components are designed for long-term operation in a specific model, which translates into fit, durability, and predictable behavior during operation. In many cases, a used OEM element will be a better solution than a cheap replacement of unknown origin.

If you want to plan your repair budget more broadly and learn about ways to save on service while maintaining the appropriate level of quality, it is worth reading the guide Rising repair costs and the boom in used parts – how to save on car maintenance?, which discusses a practical approach to choosing used OEM components.