Mercedes C207 W204 Vacuum Pipe Brake Booster Vacuum Pump Line A2044304629

The Brake Booster Vacuum Hose for Mercedes C-Class W204 / E-Class C207 is an original brake system component, connecting the vacuum pump to the brake booster. Thanks to its factory geometry and precise fit for Mercedes models, this item from the Vacuum Pumps category ensures stable vacuum and predictable brake assist operation, leading to safe and comfortable braking.

Specifications and technical data

• SKU: rhd-A2044304629
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044304629
• Substitutable numbers: A2044304629, A 204 430 46 29
• Category: Vacuum Pumps

Function and Application in the Braking System

The brake booster vacuum hose in Mercedes W204 and C207 series vehicles is responsible for the lossless transmission of vacuum from the vacuum pump to the brake booster. A correctly selected hose:

• maintains the vacuum system's seal under varying engine loads,
• ensures consistent brake pedal assist force,
• minimizes the risk of extended braking distances caused by vacuum drops,
• eliminates common issues with a "hard" brake pedal during startup and while driving.

Thanks to its construction adhering to factory Mercedes standards, the hose works with the original vacuum pump and brake booster without requiring any installation modifications.

Original Origin and Mercedes Fitment

This component comes from the Mercedes-Benz OE line, meaning it retains factory flow parameters, connection diameters, and a shape precisely matched to the engine bay of specific models. In practice, this translates to:

• secure fitment with the vacuum pump and brake booster ports,
• stable hose routing without stress or kinks,
• no interference with other components in the engine bay.

Compared to random aftermarket alternatives, an original vacuum hose reduces the risk of leaks, cracks, and improper positioning, which directly impacts the reliability of the braking system.

Characteristics of the Used Component

The offered hose is a used part, sourced from disassembly, allowing for a favorable price-to-quality ratio while maintaining the original manufacturer's specifications. Such vacuum system components, when properly maintained, retain their properties for a long time, making a proven OEM hose a sensible alternative to cheap, unreliable replacements.

Before installation, a standard visual inspection for any signs of mechanical damage is recommended, along with a leak test of the system after installation to confirm the correct operation of the vacuum pump and brake booster.

Benefits of Using an OEM Vacuum Hose

Replacing the brake booster vacuum hose with an original component from the Vacuum Pumps category for your Mercedes offers a range of practical benefits:

• stable, predictable brake assist force across the entire engine operating range,
• reduced risk of failures due to vacuum system leaks,
• easy installation thanks to factory-designed shape and connection diameters,
• maintained compliance with service documentation and manufacturer procedures.

For workshops and individual users, this means seamless integration with the existing braking system and fewer service callbacks related to incorrect part selection.

If you are planning a comprehensive repair or upgrade of the braking area in your Mercedes and need other components from the same group, such as vacuum hoses, vacuum pumps, or booster supply elements, check the available parts in the Mercedes Vacuum Pumps category.

Selection by Numbers and Technical Support

To ensure full compatibility with a specific engine version and model year, the brake booster vacuum hose can be precisely selected based on the OEM number or interchangeable numbers assigned to the given model. If in doubt, it is advisable to use part number comparison or consult with a mechanic, which minimizes the risk of purchasing an incorrect part.

For users interested in a broader perspective on diagnostics and selection of engine supply components, an article describing the principles of operation and servicing of the fuel system may be helpful – you can find it here: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.