Air Pump Hose Mercedes W203 W211 M112 Intake Manifold Pipe Line A1122380082

Mercedes W211 M112 Air Hose Petrol is an original intake system component from the Hoses, Tubes and Pipes group, designed for petrol-powered engines. Designed by the vehicle manufacturer, it ensures proper air routing in the M112 engine, stable unit operation, and maintenance of factory flow parameters.

Specifications and technical data

• SKU: A1122380082
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1122380082
• Substitutable numbers: A1122380082, A 112 238 00 82, KZ
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Application and Function in the Intake System

This air hose is responsible for the controlled supply of air to the petrol engine, which directly impacts the smoothness of operation, throttle response, and idle stability. The design tailored to the M112 unit allows for maintaining the correct intake geometry, minimizing pressure drops and undesirable air stream turbulence.

Thanks to the use of a dedicated air hose, it is possible to maintain correct fuel-air mixture parameters, which translates into even engine operation, predictable performance, and a reduced risk of engine control unit errors related to improper flow.

Construction and Fit for Mercedes W211 with M112 Engine

The air hose has been specifically designed for installation in the engine bay of the Mercedes W211 with the M112 unit, taking into account the factory routing of the system and mounting points. The appropriately selected diameter and shape ensure compatibility with standard intake system components, such as the air filter housing or intake manifold.

Original origin from the Mercedes brand means maintaining the correct stiffness, flexibility, and temperature resistance, which is crucial in the operating conditions of a petrol engine bay. Using this part allows for an economical yet technically correct repair of the intake system without the need to resort to unreliable aftermarket alternatives.

Benefits of Using an Original Air Hose

Using a dedicated air hose in the M112 petrol engine offers a number of practical benefits:

• maintaining factory air flow characteristics in the intake system,
• correct interaction with sensors and the engine control unit,
• stable operation of the powertrain across the entire RPM range,
• reduced risk of leaks and power loss resulting from improper hose fitment.

For users who wish to maintain their vehicle in a configuration close to factory specifications, choosing an original hose from the Hoses, Tubes and Pipes group is a technically safe and predictable solution in terms of operation.

Application in Petrol Vehicles

This component has been developed for use with petrol fuel systems, where precise air metering and the sealing of the entire intake path are crucial. In petrol engines, any air hose leaks can lead to uneven running, increased fuel consumption, or the illumination of warning lights, making a correctly fitted hose an important element of service maintenance.

Replacing a worn or damaged hose with an original component allows for the restoration of correct engine operating conditions, which is particularly important in vehicles used daily, where reliability and predictable powertrain behavior are paramount.

Integration with Other Hoses and Tubes in Mercedes

If you are planning a comprehensive repair or engine bay upgrade for your Mercedes and require other components from the same group, such as vacuum hoses, coolant hoses, or breather tubes, check the available parts in the Mercedes Hoses, Tubes and Pipes category.

To better plan your service work and select a cohesive set of used components, it is also worth consulting the guide on how to assemble original used parts in one place: Comprehensive Sourcing – How to Assemble Used Car Parts in One Place.