Vacuum Pipe Mercedes C118 W177 W247 Brake Servo Line Hose A1774306600

Vacuum Pipe Mercedes C118 W177 W247 Brake Servo Line Hose is an original brake system component designed to work with the brake servo in selected Mercedes models. This used part from the Lines, hoses and pipes category ensures factory-fit, stable vacuum routing, and proper cooperation with other brake system components. It is a solution for users who want to maintain compliance with the manufacturer's design and avoid issues with ill-fitting aftermarket replacements.

Specifications and technical data

• SKU: rhd-A1774306600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1774306600
• Substitutable numbers: A1774306600, A 177 430 66 00
• Category: Hoses, Lines & Pipes

Purpose and function in the brake system

The brake servo vacuum hose in Mercedes A-Class, CLA, and B-Class models (C118, W177, W247 bodies) is responsible for safely delivering vacuum to the servo, which directly affects the efficiency of the brake booster. A correctly selected pipe guarantees:

• stable vacuum maintenance during engine operation,
• proper brake pedal response,
• consistent cooperation with the factory brake servo,
• reduced risk of leaks in critical areas of the brake system.

By maintaining the original geometry and connection diameters, the vacuum pipe allows for installation without interfering with the system's design, which is particularly important in modern vehicles with extensive electronics and precisely calibrated brake assistance.

Benefits of using an original vacuum pipe

Using an original brake servo vacuum pipe in a Mercedes provides measurable operational benefits. The user gains:

• factory fitment to the brake system without the need for modifications,
• preservation of the brake pedal operating characteristics designed by the manufacturer,
• consistency with other vacuum system components,
• reduced risk of diagnostic errors related to leaks.

A used original part is a sensible choice for repairs where compliance with manufacturer documentation and predictable vehicle behavior after component replacement are important. In the case of the brake system, this has a direct impact on driving safety and comfort.

Selection and installation of the brake servo vacuum hose

To correctly select the brake servo vacuum pipe for a specific Mercedes vehicle, it is worth paying attention to compatibility with the body version and brake system configuration. The original hose is designed to:

• route the vacuum line without interfering with other components in the engine bay,
• ensure adequate resistance to temperature and vibration,
• maintain connection tightness at the servo ports and vacuum source.

During installation, it is important to maintain the factory routing of the pipe and ensure correct seating of the connectors. This ensures the brake system maintains the parameters specified by the manufacturer and the servo operates under stable vacuum conditions.

Application area and system expansion

The brake servo vacuum pipe belongs to the group of components responsible for the proper operation of the brake booster. For comprehensive maintenance of this area, it is worth considering checking other lines, hoses, and pipes in the engine bay to avoid localized leaks and system performance drops. If you are planning a comprehensive repair or upgrade of the brake zone in your Mercedes and need other elements from the same group, such as vacuum lines, servo hoses, or brake system pipes, check the available parts in the Mercedes Lines, hoses and pipes category.

Technical support and component knowledge

When working with brake and vacuum system components, it is worth relying on proven solutions and knowledge about the differences between individual equipment lines and vehicle versions. For a better understanding of how manufacturers design components in standard and sports versions, the material describing the differences in suspension, brake, and drivetrain design may be helpful – you can find it in the article BMW M Performance: how do BMW M components differ from standard ones?. Although it concerns a different brand, it well illustrates the manufacturers' approach to designing key components and the sense of using original parts in advanced vehicle systems.