Mercedes W211 C219 Brake Hydraulic Unit Suction Line Pipe Tube Hose A2114207226

Mercedes W211 C219 Brake Hydraulic Unit Suction Line Pipe Tube Hose is a specialized vacuum component designed for the braking system of Mercedes E-Class (W211) and CLS (C219) models. It is responsible for the stable supply of vacuum to the brake booster, which translates into predictable braking assistance and safe deceleration. Thanks to a design compliant with Mercedes factory standards, this brake hydraulic unit suction line pipe tube hose ensures proper sealing and fitment to the original installation.

Specifications and technical data

• SKU: RHD-A2114207226
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2114207226
• Substitutable numbers: A2114207226, A 211 420 72 26
• Part type: Line
• Category: Brake Hoses, Lines & Fittings

Purpose and function in the braking system

The suction hose in the braking system is responsible for transporting vacuum from the supply system to the brake booster, allowing the driver to achieve adequate braking force with minimal pedal pressure. In Mercedes W211 and C219 vehicles, a properly functioning vacuum line is crucial for:

• maintaining stable brake assistance across the full load range,
• reducing the risk of increased braking distance during emergency braking,
• ensuring repeatable brake pedal operating characteristics.

A well-selected element from the Brake hoses, lines and connectors group allows for restoring factory system performance without the need for installation modifications.

Compatibility with Mercedes W211 and C219

The presented suction hose has been designed with the architecture of the braking system in the Mercedes E-Class W211 and CLS C219 in mind. This means it is perfectly matched to:

• original mounting points in the engine bay,
• factory brake booster ports and vacuum source,
• the routing geometry of the lines in the given body type.

Such fitment facilitates installation, minimizes the risk of stress on connections, and helps maintain the tightness of the entire vacuum circuit. In practice, this translates into predictable braking system operation in daily use.

Characteristics of the used component

The offered brake hydraulic unit suction line pipe tube hose is a used part, sourced from vehicle dismantling. This type of part allows for economical vehicle repair while maintaining compliance with Mercedes factory specifications. In the case of vacuum lines, it is particularly important to ensure:

• no visible cracks or leaks on the working sections,
• correct geometry, without permanent kinks that restrict flow,
• stable connection sockets at the ends of the line.

Choosing an original used component is often a beneficial solution compared to aftermarket replacements with uncertain material specifications.

The importance of proper selection of brake hoses and lines

In Mercedes braking systems, it is crucial to maintain the integrity of all lines – both pressure and vacuum. The suction hose works with the booster, rigid lines, and flexible hoses to create a cohesive system responsible for effective braking. Therefore, when replacing a single element, it is worth paying attention to:

• the consistency of the solutions used with the rest of the installation,
• avoiding interference with the original routing of the lines,
• maintaining appropriate length slack to avoid stress.

Such an approach allows for keeping the braking system in a state close to factory condition, which has a direct impact on driving safety.

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 flexible hoses, rigid pipes, or booster connectors, check the available parts in the Mercedes brake hoses, lines and connectors category.

Safe selection of used braking system components

When choosing a used suction hose for the braking system, it is worth knowing the basic criteria for assessing the condition of lines, connectors, and cooperating elements. Detailed tips on how to responsibly approach the purchase of used brake components can be found in the guide Second-hand braking system: how to safely select discs, calipers, and ABS?, which helps organize the process of verifying parts before installation in the car.