Mercedes-Benz E-Class W211 Air Duct Plastic Pipe Right O/S A1120943482

Mercedes-Benz E-Class W211 Air Duct Plastic Pipe Right O/S is an original intake system component, designed specifically for the W211 generation E-Class models. Thanks to its factory geometry and fitment for the right side of the vehicle, it ensures stable airflow guidance and proper integration with other engine bay components. This is a practical solution for users looking for a proven, original plastic part rather than aftermarket replacements of uncertain quality.

Specifications and technical data

• SKU: A1120943482
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1120943482
• Substitutable numbers: A1120943482, A 112 094 34 82, ASZ
• Location on the vehicle: Right
• Category: A/C Expansion Valves

Purpose and fitment for Mercedes-Benz E-Class W211

The described air duct is dedicated to the intake system of the Mercedes-Benz E-Class W211 generation, designed for the right side of the vehicle. The component's construction has been developed to maintain the correct air channel path, avoid interference with adjacent components, and uphold factory flow parameters.

Precise fitment to the specific area of the engine bay facilitates installation and reduces the risk of stress, leaks, or unwanted vibrations. This is particularly important in premium class vehicles, where the intake system works in conjunction with extensive covers and auxiliary components.

Construction and function of the air duct

The plastic air duct acts as a channel directing air within the engine bay, ensuring proper flow and separation from heat-generating components. The use of plastic with selected rigidity and thermal resistance allows the channel to maintain a stable shape, which translates into consistent operating conditions for the system.

Properly formed ribs and mounting points enable secure seating of the duct in factory brackets, which reduces noise, minimizes the risk of rubbing against other components, and supports trouble-free operation of the intake system in the long term.

Condition of the part and benefits of choosing a used component

The offered air duct is a used part, sourced from dismantling, which allows for maintaining the original manufacturer's specification while optimizing service costs. In the case of plastic intake system components, choosing an original part from the secondary market often ensures a better fit than new replacements with simplified geometry.

For workshops and individual users, this means the ability to restore the factory air channel path without the need for modifying mounts or interfering with adjacent components. It is a practical solution for post-collision repairs, replacing damaged covers, or comprehensive engine bay servicing.

Application in air conditioning systems and Expansion Valves

Air ducts in E-Class vehicles work with cooling and air conditioning systems, where maintaining stable flow and temperature conditions is essential. Proper airflow management in the engine bay promotes the even operation of components such as Expansion Valves, the evaporator, or air conditioning lines, reducing local overheating and unwanted turbulence.

If you are planning a comprehensive repair or upgrade of the air conditioning and air intake area in your Mercedes and need other components from the same group, such as lines, ducts, or parts working with the cooling system, check the available parts in the Mercedes Expansion Valves category.

Practical installation and diagnostic tips

When replacing the air duct on the right side, it is worth paying attention to:

• the condition of the mounting points on the body and adjacent components,
• the tightness of connections with other sections of the air channels,
• any signs of rubbing or overheating on the old part, which may indicate other installation issues.

This approach allows not only for replacing a single duct but also for identifying potential irregularities in the routing of harnesses, covers, or other components that may have led to premature damage. For more complex repairs of the drivetrain and its associated components, it is worth consulting specialized technical materials, such as the article Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain, which helps organize the diagnostic process and part selection.

Summary

Mercedes-Benz E-Class W211 Air Duct Plastic Pipe Right O/S is a functional, original secondary market component that allows for restoring the factory air channel path in the engine bay. Its dedicated design for the right side of the vehicle, fitment for the W211 structure, and adherence to the manufacturer's intended geometry make it a reasonable choice for repairs, post-accident servicing, or restoring the completeness of the intake system in E-Class vehicles.