Audi A5 8T 2.0 TDI CNHA Throttle Body Intake Manifold Housing 04L128637

Audi A5 8T 2.0 TDI CNHA Throttle Body Intake Manifold Housing is a precision intake system component designed for diesel engines in the Audi A5 8T generation. It is responsible for a stable connection between the intake manifold and the throttle body, which promotes uniform airflow and proper operation of the power unit. Thanks to a design consistent with factory solutions, you maintain the original performance characteristics of the diesel engine and the high operational standards of the intake system.

Specifications and technical data

• SKU: 04L128637
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L128637
• Substitutable numbers: 04L128637, 04L 128 637
• Fuel type: Diesel
• Category: Throttle Bodies

Purpose and function in the intake system

The presented throttle body intake manifold housing has been designed to work with the 2.0 TDI CNHA engine in the Audi A5 8T, where it plays a key role in the air intake area. It is responsible for a tight and stable connection between the manifold and the throttle body, which has a direct impact on:

• proper air dosing to the cylinders,
• stable operation of the diesel unit across the full load range,
• maintaining correct combustion parameters in the diesel engine.

By maintaining the factory geometry of the housing, the intake system operates in a predictable manner, which facilitates diagnostics and maintenance while reducing the risk of throttle malfunction.

Benefits of using an original Audi component

Using a throttle body intake manifold housing dedicated to the Audi A5 8T allows for maintaining the consistency of the entire intake system with the manufacturer's specifications. In practice, this means:

• secure fitment to the manifold and throttle body without the need for modifications,
• preservation of factory mounting points and airflow routing,
• easier installation and removal during future service work.

This element from the Throttle Bodies category works with the diesel engine's control electronics, which helps maintain stable idle speed, smooth throttle response, and proper operation of emission control systems.

Operational characteristics in a diesel engine

In diesel units, proper airflow through the throttle body and manifold is essential for combustion efficiency. A properly selected housing:

• supports uniform cylinder filling with air,
• helps maintain stable pressure in the intake system,
• reduces the risk of leaks that could cause power loss or ECU errors.

As a result, the 2.0 TDI CNHA engine maintains predictable performance characteristics, and the response to load remains consistent with Audi's factory specifications.

Condition, installation, and service application

The offered housing belongs to the group of used parts, which allows for cost-effective repair of the intake system while maintaining the original specification. This is a practical solution in situations where:

• the existing housing has suffered mechanical damage or cracking,
• there are leaks around the connection between the manifold and the throttle body,
• it is necessary to replace the component as part of a comprehensive diesel engine service.

Selecting a part consistent with the manufacturer's markings facilitates the mechanic's work and reduces the risk of compatibility issues, which translates into efficient installation and a predictable repair result.

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 throttle bodies, connecting elements, or additional housings, check the available parts in the Audi Throttle Bodies category.

How to select the correct throttle body intake manifold housing

To correctly select this component for your car, it is worth paying attention to the compatibility with the specific diesel engine version and the intake system configuration in the Audi A5 8T. Comparing the shape, mounting method, and connection diameters with the element currently installed in the vehicle is helpful. In case of doubt, the manufacturer's guidelines and service documentation will be useful.

Additionally, you can use practical tips on selecting used parts – see how to professionally select used components and avoid bad purchases by using expert advice on compatibility and OEM markings.