Mercedes-Benz W202 W208 W210 M112 M113 Engine Air Intake Pipe Hose Resonator

MERCEDES W202 W208 W210 Air Filter Resonator is an intake system component from the Hoses, Pipes and Tubes group, designed for the right side of the engine bay. It is responsible for stabilizing airflow in the intake, which promotes smooth engine operation and reduces unwanted acoustic vibrations. This is a practical solution for users looking for a proven, original component for Mercedes C-Class, CLK, and E-Class models indicated in the title.

Specifications and technical data

• SKU: A1121400087
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1121400087
• Substitutable numbers: A1121400087, A 112 140 00 87, KZ
• Location on the vehicle: Right
• Category: Hoses, Lines & Pipes

Function of the Air Filter Resonator in a Mercedes

The air filter resonator in Mercedes W202, W208, and W210 vehicles plays a crucial role in the intake system. Its tasks include:

• smoothing the pulsations of air drawn into the engine,
• reducing noise generated by airflow,
• stabilizing the operating conditions of the air filter and subsequent intake components,
• assisting in maintaining predictable cylinder filling parameters.

Thanks to its appropriately selected geometry and volume, the resonator helps maintain consistent intake system operating conditions, which translates to improved engine running smoothness and acoustic comfort inside the vehicle.

Purpose and Placement on the Vehicle

The presented resonator is intended for installation on the right side of the vehicle, within the engine bay, in direct proximity to intake hoses and pipes. This placement ensures:

• correct connection to the existing air hose system,
• maintenance of the factory airflow path,
• appropriate distance from heat and vibration sources,
• easier service access when replacing the filter or intake components.

Choosing a resonator that matches the intake system design of Mercedes W202, W208, and W210 models helps avoid leaks, stress on connections, and unwanted deformation of hoses.

Characteristics of the Used Component

The offered air filter resonator is a used part, sourced from dismantling. Such components, when maintaining their seal and correct geometry, retain their functional properties for a long service life. For a resonator, it is particularly important that:

• the housing has no cracks or deformations,
• the connection spigots for hoses are stable,
• the sealing surfaces are undamaged,
• the original material stiffness is maintained.

Opting for an original, used intake system component allows for maintaining factory fitment with hoses, pipes, and tubes, which is crucial for the seal and proper operation of the entire system.

Benefits of Using an Air Filter Resonator

Using the correct resonator in the Mercedes intake system provides a range of practical operational benefits:

• smoother airflow to the engine,
• reduced audible intake air noise,
• less vibration transmitted to the filter housing and hoses,
• compliance with the factory intake system configuration.

For users who care about their vehicle's technical condition, this means stable engine operation and a lower risk of problems arising from non-factory intake modifications.

Mercedes Hoses, Pipes and Tubes – Intake System Expansion and Service

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as flexible intake hoses, rigid air pipes, or connectors between the filter and manifold, check the available parts in the Mercedes Hoses, Pipes and Tubes category.

How to Care for Used Intake Components Before Winter Season

Before the cold season, it is advisable to check the condition of intake system components, including the resonator, hoses, and connections, to avoid leaks and problems with engine starting and stable operation. Practical tips for inspecting used components, checklists, and example parameters can be found in the article Winter Essentials: Which Used Car Parts Should You Check and Replace Before the Frost?.