Mercedes W221 Rear Headrest Vacuum Pipe Line Hose A2218000915

Mercedes W221 Rear Headrest Vacuum Pipe Line Hose is a specialized component of the vacuum system responsible for the proper operation of the rear headrest in luxury sedans of this series. As a part from the Lines, hoses and pipes group, it ensures a tight and stable connection between the control elements and the headrest mechanism, which translates into safe and comfortable vehicle operation. Using an original component is a sensible choice for professional repair of the comfort system in the rear part of the cabin.

Specifications and technical data

• SKU: A2218000915
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2218000915
• Substitutable numbers: A2218000915, A 221 800 09 15
• Location on the vehicle: Rear
• Category: Hoses, Lines & Pipes

Purpose and function in the vehicle

The described vacuum hose is designed for installation in the rear part of the body, where it works with the headrest adjustment system. It is responsible for:

• transferring vacuum from the vehicle's system to the headrest actuator,
• maintaining stable operating pressure during system operation,
• ensuring the tightness of connections between the vacuum system components.

Thanks to its proper fit to the Mercedes W221 design, the hose allows for maintaining the factory operating characteristics of the rear headrest mechanism without the need for system modifications.

Benefits of using an original hose

Using an original vacuum hose in the rear part of the vehicle brings measurable service and operational benefits:

• Factory geometric fit – the correct length, diameter, and routing shape minimize the risk of tension and abrasion during the operation of the suspension and interior elements.
• Stable comfort system operation – proper vacuum flow supports the repeatable operation of the headrest mechanism, which is important when using the adjustment frequently.
• Hassle-free installation – the hose is prepared to work with factory connectors and mounts, which facilitates workshop work and shortens repair time.

Application in the rear cabin zone

The element has been designed to work in the rear part of the interior, where it is exposed to temperature changes, vibrations, and the movement of upholstery elements. The hose construction promotes:

• resistance to typical operational loads in the rear seat area,
• maintaining adequate flexibility when routed under upholstery and covers,
• reducing the risk of leaks at bends and transitions through structural elements.

As a result, the rear headrest vacuum hose supports the preservation of passenger comfort and the proper operation of adjustment systems in the long term.

Characteristics of the used component

The offered hose comes from dismantling, which allows for economical repair while maintaining the manufacturer's original specifications. A used element of this type is particularly attractive in the case of:

• post-accident repairs or after interference with the rear upholstery,
• mechanical damage to hoses resulting from improper installation,
• the need to restore the efficiency of the vacuum system without investing in a new set of installations.

Choosing an original, used hose from the Lines, hoses and pipes group allows you to maintain the structural consistency of the system and avoid problems with fitting universal replacements.

If you are planning a comprehensive repair or modernization of the rear comfort system zone in your Mercedes and need other elements from the same group, such as vacuum lines, flexible hoses, or rigid supply pipes, check the available parts in the Mercedes Lines, hoses and pipes category.

Additional service information

When replacing the rear headrest vacuum hose, it is worth paying attention to the condition of the remaining sections of the installation and proper routing under the upholstery elements. It is recommended to:

• check the tightness of the entire section from the vacuum source to the actuator,
• check the mounts and fastening clips to avoid future abrasion,
• carefully disassemble and assemble the covers so as not to damage the newly installed hose.

For users interested in a broader context of vehicle component repairs, including the cost-effectiveness of using used parts, the following article may be helpful: Used gearbox – when it pays off and what you need to remember, which discusses the practical aspects of selecting used components in cars.