Audi A3 8P VW Jetta A6 Clutch Tube Hose Pipe Breather Valve 1K1721480B FM27005F

The Audi A3 8P VW Jetta A6 Clutch Bleeder Valve is a precise component of the clutch release system, designed for use in Volkswagen Group vehicles. It is responsible for controlled bleeding of the hydraulic circuit, which translates to stable clutch pedal operation and predictable power transmission. This solution is ideal wherever proper clutch function and repeatable system performance are crucial.

Specifications and technical data

• SKU: 1K1721480B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1K1721480B
• Substitutable numbers: 1K1721480B, 1K1 721 480 B, FM27005F
• Part type: Clutch Bleeder
• Category: Additional Clutch Parts

Purpose and Function in the Clutch System

The presented bleeder valve operates within the clutch hydraulic circuit, stabilizing fluid flow and facilitating the bleeding process. In vehicles such as the Audi A3 8P, VW Jetta, or A6, its correct operation directly impacts:

• repeatable clutch pedal engagement point,
• reduction of the "spongy" pedal effect caused by air bubbles,
• more linear force transfer from the pedal to the slave cylinder,
• maintenance of stable system operating parameters under temperature changes.

Thanks to its appropriately selected flow characteristics, the valve helps maintain predictable clutch behavior in both daily city driving and longer journeys.

Benefits of Using an Original Volkswagen Part

As a Volkswagen Group component, the valve has been designed considering the specific geometry of the lines, forces acting within the system, and the operating characteristics of the slave cylinder. In practice, this means:

• factory fit for intended models without the need for modifications,
• retention of the original clutch pedal operating characteristics,
• compatibility with other hydraulic system components,
• reduced risk of leaks resulting from imprecise fitting.

Choosing such a solution is particularly important in vehicles where maintaining factory-like parameters is desired, without experimenting with aftermarket alternatives of uncertain characteristics.

Part Condition and Service Application

This item belongs to the Other Clutch Parts category and is offered as a used part, allowing for economical system repair while retaining a component with factory specifications. This type of valve is suitable for situations where:

• problems with bleeding the clutch system occur,
• changes in pedal operation are felt after the vehicle warms up,
• replacement of a damaged or leaking component is necessary after system intervention.

For workshops and individual users, this means the possibility of restoring proper clutch function without the need to replace the entire hydraulic assembly.

Application in Audi and Volkswagen Vehicles – Technical Aspects

In Audi A3 8P, VW Jetta, and A6 models, the clutch system is integrated with other drivetrain components, making the selection of the correct bleeder valve crucial for the entire power transmission line. A properly functioning component:

• simplifies the system's service bleeding procedure,
• reduces the risk of premature wear of the slave cylinder and clutch master cylinder,
• stabilizes operation during frequent starts and gear changes in city traffic.

This is particularly important in intensively used vehicles, where repeatable clutch performance contributes to driving comfort and safety.

Related Parts and Technical Knowledge

If you are planning a broader upgrade or service of the drivetrain system in these car brands and are interested in the design differences between standard and sport versions, it is worth consulting material that thoroughly discusses engines, brakes, and chassis – you can find it in the article Audi RS vs. Other Models – What's Under the Hood and Chassis?.

When expanding or repairing the clutch release system in vehicles of this brand, and you also need other hydraulic or mounting components, check the available parts in the Volkswagen Other Clutch Parts category.

If you want to better understand the specifics of used market components and make informed choices for repairs, a guide on the real advantages and limitations of such solutions may be helpful: Used Car Parts: Myths and Facts You Need to Know.