Mercedes Benz A B W169 W245 Brake Servo Vacuum Pipe Hose Line A1694300129

Mercedes Benz A B W169 W245 Brake Servo Vacuum Pipe Hose Line is an original brake system component designed for installation on the rear axle of Mercedes A-Class and B-Class W169/W245 generation vehicles. As a part from the Brake lines group, it ensures stable vacuum delivery to the brake servo, supporting the efficiency and consistency of brake performance.

Specifications and technical data

• SKU: rhd-A1694300129
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1694300129
• Substitutable numbers: A1694300129, A 169 430 01 29, BG
• Location on the vehicle: Rear
• Category: Brake Cables

Application and function in the brake system

The described vacuum pipe is a component dedicated to Mercedes vehicles, where the brake booster system relies on precise vacuum control. Installation in the rear part of the vehicle allows for proper routing of the working medium from the vacuum source to the brake servo, minimizing pressure drops and the risk of leaks.

Thanks to its tailored geometry and factory connectors, the pipe works with the original brackets and mounts on the chassis, which facilitates installation and reduces the transmission of vibrations and mechanical loads to adjacent components.

Benefits of using an original vacuum pipe

Choosing an original vacuum pipe for the Mercedes A/B W169/W245 brake servo allows you to maintain the factory operating parameters of the brake system. This component has been designed for resistance to temperature changes, external factors, and long-term pressure loads.

Key advantages include:

• precise fit for the brake system of the specific vehicle platform,
• stable vacuum maintenance during intensive use,
• compatibility with factory brackets and routing on the rear of the chassis,
• reduced risk of improper installation compared to universal replacements.

Using an original element from the Brake lines group is particularly important in vehicles where predictable brake system response and compliance with factory design specifications are essential.

Installation and operational characteristics

The brake servo vacuum pipe is intended for installation in the rear part of the vehicle, which requires maintaining the correct routing path and proper seating in the brackets. Proper installation reduces the possibility of chafing, kinking, or excessive tension on the pipe, which translates into longer and more stable operation.

This element, as a used part, represents a reasonable compromise between repair costs and maintaining the manufacturer's original specifications. In many cases, using a verified reclaimed component allows for restoring full functionality of the brake system without the need to invest in expensive new sub-assemblies.

Integration with other brake system components

The vacuum pipe works with the brake servo, brake master cylinder, and other elements of the brake installation, creating a coherent system responsible for brake force assistance. A correctly selected and installed pipe helps maintain uniform brake operation on all wheels, which is important for both safety and driving comfort.

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

Expert support and cost optimization

When selecting brake system components from the secondary market, it is worth using verified sources of knowledge. To better understand how to safely use used components in the brake system while controlling repair budgets, read the article Brake calipers under the microscope: How to effectively reduce brake system repair costs by choosing verified reclaimed parts. This will allow you to consciously combine original, used elements – such as vacuum pipes or calipers – into a coherent, safe system.