Audi A4 B8 2.0 TDI Air Filter Box Air Intake Silencer Filter Box 8K0133835CD

Description

Audi A4 B8 2.0 TDI Air Filter Box Air Intake Silencer Filter Box is an original intake system component, designed specifically for diesel engines of this generation. Thanks to its factory design, it ensures stable airflow, proper noise suppression of the intake air, and correct seating of the filter element. It is a practical solution for users who want to restore the engine’s factory performance parameters after damage or wear of the original housing.

Specifications and technical data

• SKU: 8K0133835CD
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0133835CD
• Substitutable numbers: 8K0133835CD, 8K0 133 835 CD
• Category: Air Filters

Purpose and function in the intake system

The presented Audi A4 B8 2.0 TDI Air Filter Box Air Intake Silencer Filter Box is a component of the air intake system in the Audi A4 B8 with a 2.0 TDI engine. Its purpose is to:

• provide stable airflow to the mass air flow sensor and intake manifold,
• ensure a tight fit for the air filter element,
• reduce intake noise thanks to the built-in air intake silencer,
• protect engine components from external contaminants.

Due to its factory geometry, the housing works with standard mounts and intake ducts, which facilitates installation and allows for maintaining flow parameters consistent with the manufacturer’s design.

Construction and technical features

The Audi air filter housing is made of durable plastic adapted for operation in the engine bay, where variable temperatures and vibrations occur. The integrated air intake silencer reduces resonance and air pulsation, which translates into more comfortable acoustics for the 2.0 TDI unit.

Key design advantages include:

• factory fit for the Audi A4 B8 engine bay,
• compatibility with standard intake hoses and mounts,
• a solution designed for the airflow requirements of a diesel engine,
• compatibility with standard air filter elements intended for this model.

This combination of the housing and the intake silencer allows for maintaining consistent air supply conditions, which is crucial for the operation of the fuel injection system and the engine control unit.

Condition, installation, and service application

The item comes from the group of used Audi parts, making it an attractive alternative to new OEM components for accident repairs or maintenance. A used air filter housing is particularly useful when there has been mechanical damage to the factory body, cracked ports, or deformed mounts.

Due to its factory origin, the installation is similar to a plug-and-play concept – the housing works with standard brackets, hoses, and equipment in the engine bay. In practice, this means:

• no need for modifications to the intake system,
• preservation of the original air routing,
• easier diagnostics of potential leaks after installation.

Choosing an original, used housing with an intake silencer allows for reducing repair costs while maintaining compliance with factory design specifications.

Benefits of using an original air filter housing

Using this air filter housing in an Audi A4 B8 2.0 TDI provides a number of practical operational benefits:

• maintaining proper airflow to the engine,
• reducing the risk of contaminants entering the intake system,
• preserving the factory level of intake noise,
• compatibility with factory sensors and intake equipment.

For workshops and individual users, this means the possibility of quickly replacing a damaged component with a part of known quality and origin, without the need to adapt universal replacements. In the context of long-term operation, this translates into stable engine performance and predictable behavior of the intake system.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other items from the same group, such as filter elements, housings, or intake hoses, check the available parts in the Audi Air Filters category.

To better plan service work and shorten the vehicle’s downtime in the workshop, it is worth checking out practical tips on using used OEM parts – more information can be found in the article on the impact of used OEM parts availability on repair time.