VW Touareg 7L Audi Q7 4L 3.0 TDI Engine Air Intercooler Right O/S 7L6145804

VW Touareg 7L Audi Q7 4L 3.0 TDI Engine Air Intercooler Right O/S designed for VW Touareg 7L and Audi Q7 4L models with a 3.0 TDI engine is an intake system component responsible for consistently lowering the temperature of compressed air. A properly selected intercooler on the right side of the vehicle supports turbocharger efficiency, improves engine performance, and helps maintain safe thermal conditions across a wide range of loads.

Specifications and technical data

• SKU: 7L6145804
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 7L6145804
• Substitutable numbers: 7L6145804A, 7L6 145 804 A, 95511064010, 955 110 640 10, 7P0 145 804 C, 7P0145804C
• Location on the vehicle: Right
• Part type: Intercooler
• Category: Intercoolers

Purpose and technical function

The described intercooler is designed to operate in the forced induction system of 3.0 TDI diesel engines in the first-generation Volkswagen Touareg and first-generation Audi Q7. Mounted on the right side of the vehicle, it works in conjunction with the turbocharger and intake hoses, lowering the temperature of the compressed air before it enters the intake manifold. This allows the fuel injection system to maintain stable combustion parameters, while the engine retains proper dynamics and efficiency.

A functional intercooler on the right side is particularly important during prolonged loads, highway driving, and towing, where the charge air temperature rises and the air cooling system must operate continuously and predictably.

Construction and fitment for VW Touareg 7L and Audi Q7 4L

The intercooler has been constructed as a factory-spec component, which means it offers a precise fit for the mounts, hoses, and covers in the engine bay. The appropriate shaping of the ports and housing allows for correct airflow from both the turbocharger and the intake manifold side, without the need for modifications or non-factory adapters.

By maintaining the original flow geometry, the intercooler ensures uniform cooling of the charge air, which translates into stable boost pressure and predictable engine throttle response. This is especially important in heavy SUVs, where the vehicle's weight and potential additional loads require the powertrain to perform in a repeatable, well-controlled manner.

Benefits of using a functional intercooler

Replacing a worn or leaking intercooler with a functional unit provides measurable operational benefits. The most important advantages include:

• more stable charge air temperature across the entire RPM range,
• reduction of power drops resulting from air overheating in the intake system,
• reduced risk of errors related to boost pressure and fuel dose corrections,
• more predictable response to load when driving with a trailer or a full load.

For the user, this means more confident acceleration, better flexibility in the mid-RPM range, and greater driving comfort in highway conditions. A functional intercooler also helps maintain proper engine operating conditions, which can support its durability in the long term.

Used condition and practical assembly aspects

The offered intercooler is a used part, which allows for combining functionality with an attractive purchase price. For workshops and individual users, this means the possibility of an economical repair of the forced induction system while maintaining a design consistent with the factory solution. The intercooler is intended for installation on the right side of the vehicle, so when planning service work, it is worth verifying the layout of components in the specific vehicle.

Before installation, it is recommended to perform a standard inspection of the intake system – in particular the hoses, clamps, and seals – so that after replacing the intercooler, the entire charge air path is airtight and ready for operation under load. This approach minimizes the risk of recurring problems related to power loss or incorrect boost pressure.

Technical support and additional materials

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other components from the same group, such as additional intercoolers, intake hoses, or mounting hardware, check the available parts in the Volkswagen Intercoolers category.

To better understand the impact of the cooling system on engine durability and the symptoms of overheating, it is worth reading the guide: Engine cooling system – overheating, repair, and used radiators. For users considering the choice between a used part and an aftermarket replacement, the following material may also be helpful: 5 reasons why a used OEM part is a better choice than an aftermarket replacement, which discusses the criteria for selecting components for repair in a practical way.