Mercedes W212 Air Intake Pipe Hose Line Tube A2780940891

The Mercedes W212 Air Intake Hose Pipe is an original component of the air supply system, designed for W212 generation E-Class models. Thanks to its factory geometry and fit to standard mounting points, it ensures stable air delivery to the engine and maintains the designed operating parameters of the powertrain. This is a practical solution for users who want to restore the efficiency of the intake system after damage or wear of the existing hose.

Specifications and technical data

• SKU: A2780940891
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2780940891
• Substitutable numbers: A2780940891, A 278 094 08 91
• Category: Other Car Parts & Accessories

Function and Application in the Intake System

The intake hose in the Mercedes W212 is responsible for directing air from the filtration system to further intake components. A correctly selected hose minimizes pressure drops, reduces turbulence, and helps maintain stable engine operating conditions across the full range of loads. The original design ensures:

• appropriate cross-sectional shaping for smooth airflow,
• compatibility with factory clamps and mountings,
• safe intake routing while maintaining clearance from other components.

This allows the intake system to retain the parameters intended by the manufacturer, which contributes to stable engine operation and proper interaction with the control electronics.

Original Origin and Reference Numbers

The presented intake hose is a Mercedes brand component, originating from the manufacturer's factory supply chain. The part has an assigned OEM number and interchangeable numbers, which facilitates unambiguous identification in service catalogs and allows verification of compatibility with a specific W212 engine version. This enables precise selection of the component for your vehicle, reducing the risk of installation problems.

Condition, Selection, and Installation

The item is offered in used condition, allowing for economical repair of the intake system while maintaining original specifications. Before installation, a standard check of the seals, spigot condition, and surfaces interacting with the clamps is recommended to ensure proper connection sealing. In practice, installation involves:

• removing the old hose, noting the order of clamp disconnection,
• cleaning the sockets and spigots of dirt,
• fitting the hose into the factory guide points,
• performing a check tightening of the clamps after the first few kilometers of driving.

This approach helps maintain the airtightness of the intake system and minimizes the risk of un-filtered air being drawn in.

Benefits of Using an Original Intake Hose

Using an intake hose dedicated to the Mercedes W212 offers a range of practical operational benefits:

• maintaining factory airflow characteristics,
• secure fit to standard mountings and accessories,
• reduction of unwanted vibrations and stresses in the intake system,
• easier future diagnostics due to compliance with service documentation.

For users who prioritize technically correct restoration of functionality, choosing an original hose is a solution consistent with the vehicle manufacturer's intentions.

System Expansion and Related Components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as additional intake hoses, air ducts, or filter housing components, check the available parts in the Other Mercedes category.

When comparing solutions used in different car brands and segments, material discussing the construction of powertrains and accessories in high-performance models may be helpful – more information can be found in the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.

If you are also interested in the economic and environmental aspects of using components from the secondary market, it is worth reading the guide Eco-Friendly Driving: Discover the Benefits of Used Car Parts, which shows how conscious selection of used components can support sustainable vehicle operation.