Audi A4 B8 A5 8T 1.8 TFSI CDHA Intercooler Hose Turbo Pipe Line 8K0145738M

Audi A4 B8 A5 8T 1.8 TFSI CDHA Intercooler Hose Turbo Pipe Line is a component from the Hoses, pipes and lines category, designed for the 1.8 TFSI petrol engine intake system. It is responsible for the stable routing of compressed air between the intercooler and other system components, which directly impacts the engine's performance and durability. This solution is dedicated to Audi A4 B8 and Audi A5 8T models with the CDHA engine, ensuring proper geometric fit and installation.

Specifications and technical data

• SKU: 8K0145738M
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0145738M
• Substitutable numbers: 8K0145738M, 8K0 145 738 M
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The described intercooler hose operates within the turbocharging system of a petrol engine, transporting compressed air at elevated temperatures and pressures. Its task is to maintain flow integrity and provide resistance to the thermal and pressure fluctuations typical of TFSI units. Thanks to its precisely selected shape and internal diameter, the hose supports stable boost pressure, which translates into proper operation of the turbocharged engine and predictable throttle response.

Compatibility with Audi models

Audi A4 B8 A5 8T 1.8 TFSI CDHA Intercooler Hose Turbo Pipe Line has been designed for a specific powertrain configuration, facilitating installation without the need for modifications. Being dedicated to the 1.8 TFSI CDHA unit ensures the maintenance of correct geometry relative to other intake components, mounts, and the intercooler. Using a component from the same design group helps reduce the risk of leaks, material stress, or interference with other engine bay components.

Performance characteristics and benefits of use

As a component of the turbocharging system in a petrol engine, the intercooler hose must combine resistance to temperature, pressure, and vibrations generated by the running engine. Using a dedicated hose to replace a worn or leaking component allows you to:

• restore the integrity of the intake system and reduce boost pressure drops,
• minimize the risk of engine control unit errors related to incorrect airflow,
• maintain stable turbocharging performance across typical load ranges,
• reduce unwanted performance losses resulting from leaking hoses.

For the user, this means more predictable acceleration characteristics and consistent operation of the turbocharging system in daily use.

Component condition and installation aspects

The offered intercooler hose is an aftermarket part, allowing for an economical replacement of a worn section of the intake system while maintaining a proper fit for the specific Audi configuration. Before installation, a standard visual inspection and a check of the clamps and connectors are recommended to ensure the entire intake section operates in a sealed and stable manner. Replacing the hose is a typical service operation within the intake system and can be performed as part of standard maintenance work on the petrol engine.

Expanding the Audi intake system

If you are planning a comprehensive repair or upgrade of your Audi's engine area and need other components from the same group, such as additional intake hoses, vacuum lines, or charge air cooling pipes, check out the available parts in the Audi Hoses, pipes and lines category.

For those considering broader upgrades or engine tuning, including the use of pre-owned intake system components, our guide covering common pitfalls when selecting such parts may be helpful – more information can be found in the article Buying used car parts • Most common mistakes when choosing tuning parts.