Audi A4 B7 3.0 TDI Radiator Intercooler Charge Air Cooler Turbo 8E0145806Q

Visual condition of the part 

The product shows signs of use visible in the photos. 

Audi A4 B7 3.0 TDI Radiator Intercooler Charge Air Cooler Turbo is a factory-fitted component of the turbocharging system designed for diesel engines, responsible for the efficient cooling of compressed intake air. Thanks to the original Audi design, the intercooler ensures stable engine performance parameters and helps maintain consistent power characteristics. This is a solution for users who expect a technically matched component for their intake system.

Specifications and technical data

• SKU: 8E0145806Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0145806Q
• Substitutable numbers: 8E0145806Q, 8E0 145 806 Q
• Fuel type: Diesel
• Category: Other Engine Cooling Components

Purpose and role in the turbocharging system

The presented charge air cooler has been designed for Diesel units in the Audi A4 B7 generation model with a 3.0 TDI engine. Its task is to lower the temperature of the air compressed by the turbocharger before it enters the combustion chamber. A lower charge air temperature increases the density of the mixture, which promotes more efficient combustion and stable engine operation across the full load range.

In practice, a functional intercooler helps reduce power drops when the system is hot, supports smooth engine operation, and can positively influence the refinement of the diesel engine during highway driving and in urban conditions.

Construction and fitment for Audi A4 B7 3.0 TDI

Audi A4 B7 3.0 TDI Radiator Intercooler Charge Air Cooler Turbo is a component structurally matched to the factory intake system of this model. This means maintaining the correct geometry of connections, the appropriate core shape, and mounting points, which facilitates installation in place of the original cooler without the need for system modifications.

The original Audi group origin helps maintain compliance with factory airflow parameters, which is important for a stock engine configuration. As a result, the control system does not require additional adaptations, and the entire intake path remains consistent in terms of flow characteristics.

Condition of the item and practical application

The offered intercooler is a used component, which allows for an economical replacement of a damaged or leaking cooler while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial for maintenance repairs where technical fitment and reasonable service costs are the priority.

Replacing the charge air cooler is recommended, among other things, in situations where intake system leaks, mechanical damage to the housing, or performance drops related to improper charge air cooling are detected. Using an original component helps restore correct engine performance parameters without interfering with the installation design.

Benefits of using an original intercooler

• Factory fitment – maintaining the original geometry and mounting points facilitates installation and integration with the existing intake system.
• Consistency with the engine control system – airflow parameters are in line with the manufacturer's specifications, which promotes stable engine operation.
• Reasonable service solution – a used component allows for reduced repair costs while maintaining the original design.
• Support for diesel engine durability – a properly functioning charge air cooler helps reduce thermal loads in the turbocharging system.

Related components and technical knowledge

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, connectors, or additional mounting hardware, check out the available parts in the Other Audi category.

For users interested in a broader technical context of the brand's models, including differences in the construction of power units and associated systems, an article describing the characteristics of the sports RS versions and standard variants may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.