Vacuum Pipe Mercedes W204 C207 OM651 Brake Servo Line Hose A2044303429

Vacuum Pipe Mercedes W204 C207 OM651 Brake Servo Line Hose is an item from the Lines, hoses and pipes category, designed for the brake booster system in Mercedes vehicles equipped with the OM651 engine. It is responsible for the stable supply of vacuum to the brake servo, which translates into predictable brake pedal response and safe deceleration. This solution is dedicated to users who expect compatibility with the factory design of the braking system.

Specifications and technical data

• SKU: rhd-A2044303429
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044303429
• Substitutable numbers: A2044303429, A 204 430 34 29
• Category: Hoses, Lines & Pipes

Purpose and function in the braking system

The offered vacuum pipe is designed to work with the brake servo in Mercedes C-Class (W204) and E-Class/Coupe (C207) models with the OM651 unit. Its task is to maintain a tight, stable connection between the vacuum source and the servo, which allows for maintaining the proper brake booster force under various engine load conditions.

A properly selected vacuum pipe:

• ensures repeatable brake pedal operation characteristics,
• reduces the risk of power assist loss during sudden braking,
• minimizes the possibility of leaks in a critical section of the system.

Construction and fitment for Mercedes W204 / C207 OM651

The pipe has been constructed with factory routing in the engine bay in mind, with appropriately shaped sections and connectors matched to the Mercedes braking system. Thanks to this, installation is straightforward, without the need to modify the pipe route or use additional adapters.

Key design features include:

• profile matched to the geometry of the OM651 engine bay,
• connectors prepared for integration with the brake servo and vacuum system,
• material selected for operation in elevated temperatures and in the vicinity of engine components.

Benefits of using the original vacuum pipe

Using a pipe dedicated to the specific Mercedes W204 / C207 OM651 configuration allows for maintaining consistency with the factory braking system design. This is particularly important in vehicles where predictable vehicle behavior during braking and compliance with the manufacturer's specifications are essential.

The main advantages include:

• Factory fitment – the pipe is prepared for operation in a specific system, which facilitates installation and reduces the risk of installation errors.
• Stable braking system performance – a correctly selected vacuum component supports uniform servo operation.
• Compatibility with other system components – the pipe works with the existing installation without the need for modifications.

Condition and service application

The offered vacuum pipe is a used part, which makes it an attractive service solution for users looking for parts consistent with the original specification while maintaining reasonable repair costs. It works well both when replacing a damaged pipe and during a comprehensive refresh of the vacuum system in vehicles used intensively.

Expanding support for the vacuum and brake system in Mercedes

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other components from the same group, such as vacuum lines, flexible hoses, or rigid pipes supplying the servo, check the available parts in the Mercedes lines, hoses and pipes category.

If you want to better understand how to take care of engine accessories in popular C-Class and E-Class models with OM651 units and other Mercedes engines, it is worth reading the practical tips in the article Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C-Class and E-Class models?, which discusses, among other things, the importance of efficient pipes and auxiliary installations.