Mercedes W203 W209 Vacuum Pipe Line Hose Brake Booster Servo M272 A2034304929

The Mercedes W213 OM654 Diesel Vacuum Hose is an original component of the vacuum control system, associated with the Brake Boosters and Proportioning Valves group. Designed for the OM654 engine in the W213 model, it ensures stable transmission of vacuum essential for the proper operation of brake assist and other vacuum-dependent systems. A used OEM part is a sensible choice for professional repair of the braking system in Mercedes diesel vehicles.

Specifications and technical data

• SKU: rhd-A2034304929
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2034304929
• Substitutable numbers: A2034304929, A 203 430 49 29, BG
• Category: Brake Servos

Function and Application of the Vacuum Hose

The vacuum hose in the braking system is responsible for safely delivering vacuum from the pump or manifold to the brake booster. For OM654 diesel engines, this is crucial for stable booster operation, especially during sudden braking and frequent engine load changes.

A properly selected hose ensures:

• leak-free vacuum transfer throughout the engine's operating range,
• correct brake pedal response without delays,
• consistent operation with the brake booster and proportioning valve,
• maintenance of the braking system's factory performance parameters.

Benefits of Using an Original Mercedes Part

Using a vacuum hose from the Mercedes genuine parts range allows for the preservation of the factory operating characteristics of the brake booster and proportioning valve. The original geometry, internal diameters, and connection points are precisely matched to the W213 with the OM654 engine, minimizing the risk of leaks and installation issues.

Key advantages of this solution include:

• secure fit to factory spigots and connectors,
• maintenance of the designed hose flow rate,
• stable cooperation with the existing brake booster,
• no need for modifications or adapters.

Part Condition and Installation Aspects

The vacuum hose is offered as a used part, enabling economical repair while maintaining original design specifications. Such a component, sourced from disassembly, is particularly attractive for servicing fleet vehicles and intensively used cars where cost-effective maintenance is paramount, alongside correct braking system operation.

When installing, pay attention to:

• correct routing of the hose in factory guides,
• checking the condition of spigots and clamps,
• verifying system tightness after starting the engine,
• avoiding kinks and excessive stress on bent sections.

Integration with the Brake Booster and Proportioning Valve System

As a component associated with the Brake Boosters and Proportioning Valves group, the vacuum hose directly impacts the effectiveness of brake assist. An incorrect or leaky hose can lead to a hard brake pedal, extended braking distance, and errors in driver-assistance systems. Replacing it with a functional, original component is one of the fundamental steps in diagnosing braking force issues in a Mercedes W213 with an OM654 engine.

If you are planning a comprehensive repair or upgrade of the braking area in your Mercedes and need other parts from the same group, such as a brake booster, proportioning valve, or additional vacuum hoses, check the available parts in the Mercedes Brake Boosters and Proportioning Valves category.

How to Care for a Used Vacuum Hose

To maximize the potential of a used vacuum hose, it's advisable to periodically check its visual condition, flexibility, and for any signs of oil or cracks on the surface. Regular inspection during service checks allows for early detection of wear symptoms and prevents a decrease in braking effectiveness.

Practical tips on the operation and maintenance of disassembled parts, including braking system and engine components, can be found in the article: How to Extend the Lifespan of Used Car Parts?