Intake Mercedes W210 Petrol M112 Air Intake Hose Pipe Tube A1121410004

Visual condition of the part

The product shows signs of use visible in the photos.

Intake Mercedes W210 Petrol M112 Air Intake Hose Pipe Tube is a factory-original intake system component designed for M112 petrol engines in the Mercedes W210 model. It is responsible for stable, directed airflow to the engine, which promotes smooth operation and correct combustion characteristics. Thanks to a design consistent with the manufacturer's specifications, this air intake hose ensures a proper fit with other intake components.

Specifications and technical data

• SKU: A1121400312-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1121400312
• Substitutable numbers: A1121400312, A 112 140 03 12, A1121410004, A 112 141 00 04
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The air intake hose in the M112 engine plays a key role in guiding the airflow from the filter area to the subsequent parts of the intake system. The properly shaped cross-section and length of the pipe help maintain stable cylinder filling conditions, which translates into predictable throttle response and correct engine operation across the entire rev range.

This component is particularly important in petrol engines, where the quality of the air-fuel mixture has a direct impact on engine refinement, fuel consumption, and exhaust emissions. Using the correct intake hose helps avoid leaks, uncontrolled air turbulence, and issues with sensor performance in the intake tract.

Compatibility with Mercedes W210 with M112 petrol engine

The presented air intake hose for Mercedes W210 has been designed specifically for M112 petrol units, ensuring compatibility with the engine bay geometry and factory hose routing. This allows for maintaining the original intake path without the need for modifications or the use of adapters.

Proper alignment with mounting points and adjacent components minimizes the risk of material stress and accidental chafing. This is especially important in vehicles operated in varied conditions, where the intake system is exposed to vibrations, temperature changes, and contact with other components in the engine bay.

Performance characteristics and benefits of use

Choosing an original air intake hose from the Cables, hoses, and pipes group allows you to maintain the factory airflow characteristics, which is important both for daily driving and more dynamic use. A stable intake promotes:

• maintaining a predictable engine response to accelerator pedal input,
• reducing the risk of errors related to intake system performance,
• maintaining consistency with the factory engine control unit calibration.

This item comes from a vehicle where it was previously in use, making it a cost-effective solution while maintaining the proper fit for the Mercedes W210 design. It is a practical option for repairs where compliance with the manufacturer's original design is a priority.

Practical installation tips

When replacing the air intake hose in a Mercedes W210 with an M112 engine, it is worth paying attention to the condition of cooperating intake system components, such as clamps, connectors, or adjacent hoses. It is recommended to:

• check the tightness of connections after installation,
• verify the correct positioning of the hose relative to other components,
• avoid excessive twisting or bending of the hose during installation.

This approach helps maintain stable intake system operation and reduces the risk of subsequent leaks or unwanted vibrations.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other items from the same group, such as vacuum lines, flexible intake hoses, or additional air guide pipes, check out the available parts in the Mercedes cables, hoses, and pipes category.

Additional information and service advice

When planning service work on the intake system, it is worth considering general principles of economical vehicle operation, including the selection of appropriate used parts and replacements. A broader discussion of this topic, albeit using another brand as an example, can be found in the article Repairing a Volkswagen for pennies? Discover how to save on original car parts, which shows how to use the used parts market wisely, which can be analogously applied to servicing a Mercedes.