Mercedes W211 W221 W164 Air Intake Hose Pipe A6290980401

Mercedes W211 W221 W164 Air Intake Hose Pipe Duct is an original intake system component from the Hoses, Pipes & Ducts group, designed for use in select Mercedes models. Engineered as an OEM part, it ensures proper air flow to the engine, stable engine operation, and compatibility with the factory engine bay design.

Specifications and technical data

• SKU: A6290980401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6290980401
• Substitutable numbers: A6290980401, A 629 098 04 01
• Category: Hoses, Lines & Pipes

Intended Use and Function in the Intake System

The described air intake duct is responsible for the safe and sealed delivery of air to the engine's fuel system in higher-class Mercedes vehicles. As part of the intake system:

• it stabilizes airflow between successive intake components,
• it reduces the risk of turbulence and pressure drops in the intake channel,
• it supports the correct operation of sensors and mixture control equipment,
• it maintains the proper routing of ducts in the engine bay according to the manufacturer's design.

Thanks to its factory fit, the duct retains the correct geometry, which translates to predictable engine behavior and proper cooperation with other intake components.

Construction and Fit for Mercedes

The air intake pipe was developed by Mercedes with the specific spatial layout of the engine bay in mind. Appropriately selected shape, diameter, and mounting points allow for:

• secure seating in factory brackets and sockets,
• maintaining required distances from heat-generating components,
• reducing vibrations and stresses during engine operation,
• easier installation and removal during servicing.

This solution minimizes the risk of leaks and improper duct positioning, which is particularly important in premium vehicles where engine operating parameter stability is crucial.

Performance Characteristics and Benefits of Use

As an OEM element from the Hoses, Pipes & Ducts group, the air intake duct provides a range of practical operational benefits:

• maintaining factory air flow parameters to the engine,
• compatibility with original clamps, connectors, and filter housings,
• reducing the risk of ECU errors resulting from intake leaks,
• consistency with Mercedes service documentation and workshop procedures.

The use of an original duct is particularly important in vehicles equipped with advanced emission control systems and precise mixture control, where even minor intake deviations can affect engine smoothness.

Product Condition and Installation Aspects

The element is offered in used condition, allowing for an economical replacement of a damaged or leaking duct while maintaining compliance with factory specifications. The duct is designed for installation in place of the original part, without the need for vehicle modifications.

Before installation, a standard check of connection tightness, clamp condition, and proper routing relative to other intake components is recommended. A correctly installed duct supports stable engine operation, reduces the risk of contaminants being drawn in from outside the filter, and helps maintain consistent engine performance parameters.

Part Selection by Numbers and Additional Materials

When selecting an air intake duct for a specific Mercedes engine version and year, it is advisable to use OEM designations and interchangeable numbers to ensure full compatibility with the vehicle's configuration. In case of doubt, comparing the shape, length, and mounting method with the currently installed part is helpful.

If you are planning a comprehensive repair or upgrade of the engine bay in your Mercedes and need other parts from the same group, such as flexible intake sections, rigid air ducts, or connectors between the filter and manifold, check the available parts in the Mercedes Hoses, Pipes & Ducts category.

Additional tips on selecting used parts by numbers and practical compatibility verification advice can be found in the article: Five-Cylinder Audi Engine – A Legend from Quattro to RS3 and How to Care for It with Genuine Audi Parts, which discusses, among other things, best practices for working with OEM and reference numbers.