Mercedes-Benz A B Class W169 W245 Brake Servo Vacuum Hose Pipe A1694300629

Mercedes-Benz A B Class W169 W245 Brake Servo Vacuum Hose Pipe is a specialized brake system component responsible for the stable delivery of vacuum to the brake servo. A properly selected hose ensures predictable brake pedal response, improves driving comfort, and supports the safe operation of the entire system. This component is designed for Mercedes A-Class and B-Class vehicles of the W169 and W245 generations, maintaining factory geometry and mounting methods.

Specifications and technical data

• SKU: rhd-A1694300629
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1694300629
• Substitutable numbers: A1694300629, A 169 430 06 29, EM
• Category: Other Brake Parts

Function and role of the brake servo vacuum hose

The brake servo vacuum hose in Mercedes A/B Class W169/W245 models is responsible for a tight connection between the vacuum source and the brake servo. Maintaining proper vacuum flow translates into:

• stable brake assistance across the full range of engine loads,
• more predictable brake pedal travel and resistance,
• reduced risk of decreased braking efficiency during sudden braking.

Thanks to its tailored design, the hose maintains appropriate rigidity and temperature resistance, which limits the risk of micro-cracks and leaks during long-term use.

Compatibility and fitment for Mercedes-Benz A/B Class W169/W245

The discussed hose has been designed with the brake system architecture of Mercedes A-Class and B-Class W169/W245 generations in mind. This means that:

• its routing is matched to the factory layout in the engine bay,
• the used ends and connectors are prepared to work with the original brake servo and vacuum source,
• installation does not require any modifications or system adaptations.

Such a solution facilitates service, shortens replacement time, and allows for consistency with the vehicle's factory technical documentation.

Characteristics of the used component

The offered brake servo vacuum hose is a secondary market component, sourced from dismantling. This type of part allows for an economical repair of the brake system while maintaining the original assembly specifications. In practice, this means:

• preservation of the factory shape and diameter of the hose,
• compatibility with original brackets and mounting points,
• the ability to replace a damaged hose without interfering with other system components.

Before installation, a standard check of tightness and the condition of the connectors is recommended to ensure proper brake booster operation.

Benefits of using an original vacuum hose

Using an original brake servo vacuum hose in a Mercedes A/B Class W169/W245 brings a number of practical benefits. The most important include:

• secure fit to the brake system – no need for system modifications,
• maintenance of servo operating parameters in accordance with the manufacturer's specifications,
• reduction of the risk of brake booster malfunction resulting from leaks or incorrect hose routing.

For users who prioritize consistency with the vehicle's factory design, this is a technically safe and predictable solution in operation.

Related system components and product category

If you are planning a comprehensive repair or upgrade of the braking area in your Mercedes and need other elements from the same group, such as vacuum lines, connectors, or additional mounts, check the available parts in the Other Mercedes category.

When comparing solutions used in different brands and sports segments, it is worth familiarizing yourself with the analysis of powertrain and brake system designs in high-performance models – a detailed discussion can be found in the article Audi RS vs other models – what is hidden under the hood and chassis?.

If you want to better take care of the durability of secondary market components, including vacuum hoses and brake system elements, practical tips on operation and maintenance can be found in the guide How to extend the life of used car parts?.