Mercedes-Benz C-Class W203 M111 C180 Engine Air Pump Breather Hose A1111410883

Mercedes-Benz C-Class W203 M111 C180 Engine Air Pump Breather Hose is an original component from the Lines, hoses and pipes group, designed for the M111 engine intake and ventilation system. It ensures a tight and stable connection between the air pump and the breather system, which is essential for proper engine operation and maintaining correct exhaust emission parameters.

Specifications and technical data

• SKU: A1111410883
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1111410883
• Substitutable numbers: A1111410883, A 111 141 08 83, BG
• Offset (ET):
• Category: Hoses, Lines & Pipes

Purpose and technical function

This breather hose is designed specifically for the M111 engine in the Mercedes-Benz C-Class W203 model in the C180 version. It is responsible for the controlled discharge of vapors and gases from the air pump area, which supports the stable operation of the intake system and helps maintain uniform operating conditions for the power unit.

A properly selected hose in this engine section:

• reduces the risk of leaks in the ventilation system,
• supports the correct operation of the air pump and engine accessories,
• helps maintain the correct mixture and exhaust emission parameters.

Construction and fitment to the engine system

The hose belongs to a group of flexible elements that route working gases in the engine compartment. The shape and diameters of the connections are adapted to the factory air pump nozzles and other system components, which facilitates installation and ensures a secure fit on the connectors.

Original manufacturing guarantees:

• geometry compatibility with factory routing in the engine compartment,
• appropriate flexibility while maintaining shape stability,
• possibility of installation in place of a worn or damaged hose without modifications.

Benefits of using an original hose

Using an original breather hose in the M111 engine allows for maintaining the consistency of the entire intake and ventilation system. This is particularly important in vehicles where predictable engine behavior and ease of diagnostics are prioritized.

The main advantages include:

• Factory fit – the hose works with original mounts and nozzles, which minimizes the risk of stress and cracks.
• Stable operation of the ventilation system – proper gas flow limits the formation of overpressure or vacuum in unwanted areas.
• Easier service inspection – the mechanic deals with a component of a known design, which facilitates condition assessment and potential replacement.

Condition and service application

The item comes from disassembly and is intended as a spare part for service and repair processes. It will work well when replacing a worn, brittle, or mechanically damaged hose in the C180 engine air pump system, restoring proper hose routing and connection tightness.

Selecting the correct hose according to the manufacturer's markings allows you to avoid fitment problems and also reduces the risk of incorrect routing in the engine compartment, which could result in rubbing against other components or excessive heating.

Support with selection and additional information

In case of doubts regarding the selection of the hose for a specific version of the C-Class W203, it is worth using the manufacturer's numbers and markings used by Mercedes. When shopping online, comparative photos and consultation with a mechanic specializing in this brand are also helpful.

To better understand how to safely verify component compatibility by manufacturer numbers and avoid mistakes when shopping online, you can use the tips contained in the article Online parts shopping without risk – 5 ways to verify compatibility by OEM numbers.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as flexible vacuum lines, breather hoses, or pipes for working gases, check the available parts in the Mercedes lines, hoses and pipes category.