Mercedes-Benz S-Class W221 Vacuum Pipe Hose Brake Servo Booster A2214300629

Mercedes-Benz S-Class W221 Vacuum Pipe Hose Brake Servo Booster is an original brake system component designed to work with the brake servo. As part of the Brake hoses, lines and connectors group, it ensures stable vacuum pressure, which translates into predictable brake pedal response and smooth operation of the entire system. This used OEM component is a sensible choice for drivers who want to maintain the factory braking characteristics of their S-Class W221 while keeping repair costs under control.

Specifications and technical data

• SKU: rhd-A2214300629
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2214300629
• Substitutable numbers: A2214300629, A 221 430 06 29, KZ
• Category: Brake Hoses, Lines & Fittings

Function and role in the brake system

The vacuum pipe in the S-Class W221 is responsible for a reliable connection between the vacuum source and the brake servo. A properly functioning component:

• ensures stable assistance for brake pedal pressure,
• reduces the risk of a drop in braking efficiency during sudden braking,
• maintains the tightness of the vacuum circuit under typical operating conditions,
• supports the uniform operation of other brake system components.

By maintaining the factory geometry and internal diameter of the pipe, the brake system retains the parameters specified by the vehicle manufacturer, without the need for adaptation or modification.

Why choose an original vacuum pipe

The original vacuum pipe for the S-Class W221 brake servo was designed specifically for this model, taking into account the vehicle's weight, engine characteristics, and advanced driver assistance electronics. In practice, this means:

• a secure fit to factory mounts and brackets in the engine bay,
• maintaining appropriate flexibility while remaining resistant to vacuum pressure,
• compatibility with the original brake servo and other system elements.

Choosing a used OEM component allows you to maintain the integrity of the entire brake system, which is particularly important in advanced premium class models such as the Mercedes-Benz S-Class W221.

Condition, fitment and application

The offered pipe comes from disassembly and is classified as a used original part. This type of part is particularly attractive in situations where:

• the existing pipe shows signs of wear, cracks, or leaks,
• it is necessary to replace the element after work in the engine bay (e.g., mechanical repairs),
• you want to maintain the factory brake system specifications without the cost of new parts.

Thanks to the original design, installation is straightforward for an experienced mechanic, with no need for modifications or the use of adapters.

Comprehensive approach to the Mercedes brake system

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other elements from the same group, such as additional pipes, flexible hoses, or servo connectors, check out the available parts in the Mercedes brake hoses, lines and connectors category.

To better plan your repair budget and understand how to safely use used brake system components, it is worth reading the practical tips contained in the article Brake calipers under the microscope: How to effectively reduce brake system repair costs by choosing proven recycled parts. This is a good supplement to your knowledge when selecting pipes, hoses, and other elements of this vehicle section.

Summary

Mercedes-Benz S-Class W221 Vacuum Pipe Hose Brake Servo Booster is a functional, original component from the Brake hoses, lines and connectors group, which allows you to restore the proper operation of the brake servo without interfering with the vehicle's factory design. By choosing a used OEM element, you gain a technically matched solution that is cost-effective and consistent with the manufacturer's specifications for your S-Class.