Audi A3 8P Vacuum Pipe Non-Return Valve Brake Booster Hose 1.4 TFSI 1K0612041HR

Audi A3 8P Vacuum Pipe Non-Return Valve Brake Booster Hose 1.4 TFSI is a specialized vacuum system component designed for gasoline-powered vehicles. It is responsible for the stable supply of vacuum to the brake booster and flow control thanks to an integrated non-return valve, which ensures predictable brake assist performance. This solution is dedicated to Audi models, designed for precise fitment and seamless integration with the factory system.

Specifications and technical data

• SKU: 1K0612041HR
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K0612041HR
• Substitutable numbers: 1K0612041HR, 1K0 612 041 HR, 1K0612041KF, 1K0 612 041 KF
• Fuel type: Petrol
• Part type: Fitting
• Category: Hoses, Lines & Pipes

Function and application in the braking system

The vacuum pipe with a brake booster non-return valve plays a key role in the operation of the brake assist, especially in turbocharged gasoline engines. It is responsible for:

• transferring vacuum from the engine to the brake booster,
• maintaining adequate vacuum under varying engine loads,
• protecting the booster against unwanted pressure backflow thanks to the non-return valve,
• stabilizing the brake pedal assist force under typical road conditions.

As a result, the braking system maintains predictable characteristics, and the driver receives consistent brake pedal feedback, which is particularly important in daily operation.

Construction and fitment for Audi A3 8P

The element has been designed as part of the Pipes, hoses and tubes system dedicated to the Audi brand, taking into account the engine bay geometry and the layout of components in the A3 8P model with a 1.4 TFSI engine. The properly selected length and shape of the pipe facilitate routing along factory installation paths, minimizing the risk of rubbing against other components.

The presence of an integrated non-return valve limits the number of connections in the system, which reduces potential leak points. Such a solution helps maintain stable vacuum and facilitates diagnostics in case of any issues with brake assist operation.

Benefits of using an original vacuum pipe

Using a dedicated vacuum pipe with a non-return valve in the Audi A3 8P brings a number of practical benefits:

• Factory fitment – geometry and connection diameters are consistent with the manufacturer's system, which facilitates installation and limits the need for modifications.
• Stable brake booster operation – proper vacuum maintenance translates into predictable assist force.
• Reduced risk of leaks – fewer joints and additional elements in the vacuum circuit.
• Better compatibility with turbocharged gasoline engines – the vacuum system is adapted to the characteristics of the TFSI unit.

For workshops and users, this means easier diagnostics, faster installation, and a lower risk of problems associated with incorrect selection of aftermarket replacements.

Characteristics of the used product

The offered vacuum pipe with a brake booster non-return valve is an aftermarket component, which allows for an economical restoration of system efficiency while maintaining compliance with the factory solution. This type of part is particularly attractive for maintenance repairs when functionality and fitment to a specific vehicle model are the priority.

During installation, standard workshop procedures are recommended: checking connection tightness, proper routing of the pipe in the engine bay, and verifying brake assist operation after starting the engine.

Selection by numbers and purchase support

The element has an OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. In case of doubt, it is worth comparing the markings with service documentation or seeking assistance from the seller to ensure that the pipe will be suitable for a given Audi A3 8P unit with a gasoline engine.

For those who want to deepen their knowledge on the safe selection of aftermarket components, the Global Parts guide may be helpful: Safe purchase of used car parts online – a step-by-step guide, which describes practical strategies for selecting parts by OEM and reference numbers.

If you are planning a comprehensive repair or upgrade of the vacuum and brake assist system in your Audi and need other elements from the same group, such as flexible vacuum hoses, rigid pipes, or additional branches for accessories, check the available parts in the Audi pipes, hoses and tubes category.