Mercedes W169 S245 Vacuum Pipe Brake Booster Servo Line Hose A1694301329

Mercedes W169 S245 Vacuum Pipe Brake Booster Servo Line Hose is an original brake system component responsible for the stable delivery of vacuum to the brake booster. Thanks to its factory geometry and precise fit for this specific Mercedes generation, it ensures reliable operation with the brake system and consistency with the factory installation, which is crucial for any repair or upgrade.

Specifications and technical data

• SKU: rhd-A1694301329
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1694301329
• Substitutable numbers: A1694301329, A 169 430 13 29
• Category: Hoses, Lines & Pipes

Function and application of the vacuum pipe

The offered pipe belongs to the group of components responsible for transferring vacuum from the engine to the brake booster. A properly functioning vacuum line translates into stable brake assistance, predictable pedal pressure, and repeatable system response under various engine operating conditions.

The component is designed for installation in Mercedes vehicles, specifically in body versions corresponding to the W169 and S245 series. By maintaining the original design, the pipe works with factory mounts, connectors, and the brake booster without the need for any installation modifications.

Construction and fitment to the brake system

The pipe belongs to the Lines, hoses, and tubes category, meaning it has been designed as a pressure component with appropriate rigidity and resistance to the vacuum generated by the engine. The shape and diameter are selected to ensure proper flow and reduce the risk of kinks or leaks in critical points of the engine bay.

Original manufacturing translates into:

• proper routing of the pipe relative to other components in the engine bay,
• compatibility with stock brackets and clamps,
• preservation of the factory operating characteristics of the brake booster.

Condition and benefits of using a used part

The offered pipe is a used component, which allows for an economical repair of the brake system while maintaining the manufacturer's original specifications. In many cases, using a dismantled part is beneficial when you want to ensure factory fitment and avoid problems typical of aftermarket replacements with imprecise dimensions.

Choosing the original vacuum pipe with this reference is particularly important when symptoms such as uneven brake assistance, a hard pedal, or audible hissing near the booster occur. Replacing the pipe with a functional unit restores proper system operation without interfering with other components.

Part selection by numbers and compatibility

For precise part selection, it is recommended to use the OEM part number and available interchangeable numbers, which facilitates verification of compatibility with the specific engine version and model year. This minimizes the risk of purchasing a component with a different shape or diameter that would not work correctly with the brake booster.

If you are planning a more extensive brake system repair or replacing other vacuum installation elements, it is worth checking out other components in the brake system lines and hoses category to complete all necessary parts in one order.

Practical service tips and additional materials

When installing the vacuum pipe, it is recommended to check the condition of the connectors on the booster and the engine, as well as to verify the tightness of the entire vacuum circuit after completing the work. Careful installation reduces the risk of subsequent leaks and problems with brake assistance operation.

If you are interested in a broader context of purchasing parts from the secondary market, including drivetrain components, our guide may be helpful: how to safely buy used mechanical car parts. You will find practical tips there regarding the assessment of technical condition and informed part selection.

For users who want to better understand the relationships between individual components and vehicle reliability, we have also prepared educational materials on our blog – it is worth reviewing them when planning a larger scope of service work: proven tips on choosing used car parts.