Mercedes-Benz C-Class W203 Air Intake Filter Box Housing A1110901201

Mercedes-Benz C-Class W203 Air Intake Filter Box Housing is an original intake system component designed for the W203 generation Mercedes C-Class models. The robust construction of the housing ensures stable mounting of the filter element and proper airflow to the engine, which promotes efficient engine operation and reduces the risk of contaminants entering the intake system. This is a practical solution for users who want to maintain factory engine performance characteristics and compatibility with other components.

Specifications and technical data

• SKU: A1110901201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1110901201
• Substitutable numbers: A1110901201, A 111 090 12 01
• Category: Air Filter Housings

Purpose and function in the intake system

The air filter housing in the Mercedes C-Class W203 is responsible for tightly sealing the filter element and directing the airflow sucked in by the engine. A properly selected housing:

• ensures proper tightness of the intake system,
• stabilizes the position of the air filter,
• limits the ingress of dust, sand, and other contaminants,
• maintains the correct airflow required by the engine control unit.

By maintaining the original geometry of the intake ducts, the housing supports even cylinder filling, which translates into predictable throttle response and correct operation of the mixture control systems.

Benefits of using an original Mercedes housing

Using a factory air filter housing in the Mercedes C-Class W203 allows for maintaining the structural integrity of the entire intake system. Key advantages include:

• Factory fitment – the housing is designed for the specific W203 platform, which facilitates installation at original mounting points.
• Compatibility with the stock filter element and intake system accessories.
• Stable engine operation due to maintaining the airflow characteristics specified by the manufacturer.
• Trouble-free maintenance – easy access to the filter during periodic replacement.

Choosing such a component is particularly beneficial for users who want to keep the vehicle in a configuration close to factory specifications, without experimenting with aftermarket replacements of uncertain fitment.

Characteristics of the used component

The offered Mercedes-Benz C-Class W203 Air Intake Filter Box Housing comes from dismantling and is a used component. This type of part is a good solution for drivers looking for original elements at a reasonable price, while maintaining a design consistent with the manufacturer's factory specifications. A used housing allows for an economical repair of the intake system in situations such as mechanical damage, cracks, or wear of the mounts in the previously installed element.

Thanks to the preservation of the original mounting specifications, it is possible to use existing brackets, hoses, and accessories without the need to modify the installation in the engine bay. This is a practical solution for workshops and individual users who expect a predictable result after replacement.

Application in service and intake system modernization

Replacing the air filter housing in a Mercedes C-Class W203 is often performed during post-accident repairs, mechanical damage, or when leaks in the intake system are detected. Using an original element allows you to:

• restore the proper tightness of the air intake system,
• limit the risk of contaminants entering the mass air flow sensor and intake manifold,
• maintain stable engine operating parameters under various load conditions,
• maintain consistency with service documentation and manufacturer procedures.

For workshops specializing in the Mercedes brand, such an element is a valuable component that allows for repairs to be carried out in accordance with the vehicle manufacturer's guidelines.

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other elements from the same group, such as additional housings, intake ducts, or mounting elements, check the available parts in the Mercedes Air Filter Housings category.

Additional information and selection support

When selecting an air filter housing for a specific engine version of the C-Class W203, it is worth paying attention to compliance with the manufacturer's markings and the configuration of the intake system in the given vehicle. Original Mercedes components are designed for long-term operation, and their use facilitates subsequent service and diagnostics.

If you want to better understand why used OEM parts for premium brands are currently a rational choice in terms of cost and availability, it is worth reading the article Crisis in the new parts market? Why used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend in 2026, which discusses current market realities and the benefits of reaching for proven components from dismantling.