Audi A3 8Y Volkswagen Golf Mk8 Servo Brake Booster Master Cylinder 5WC614105AA
SKU: RHD-5WC614105AA
Product from a certified dismantling facility
Condition:
Used
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Estimated delivery Thu, Jun 18
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£379.95
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Audi A3 8Y Volkswagen Golf Mk8 Servo Brake Booster Master Cylinder is an original component from the Brake boosters and brake force regulators group, designed for modern braking systems in VAG group vehicles. This used OEM component ensures proper assistance for brake pedal pressure, which translates into stable, predictable, and safe deceleration in daily operation.
Specifications and technical data
- SKU: RHD-5WC614105AA
- Mark: Audi
- Condition: Used
- OEM Part Number: 5WC614105AA
- Substitutable numbers: 5WC614105AA, 5WC 614 105 AA, 0204850659, 0 204 850 659
- Part type: Brake Servo & Master Cylinder
- Category: Brake Servos
Application and function in the braking system
The described brake booster and master cylinder assembly is a key element of the hydraulic braking system in the Audi A3 8Y and Volkswagen Golf Mk8. It is responsible for amplifying pedal pressure and precisely metering pressure in the brake circuits, which has a direct impact on braking distance, vehicle stability, and the performance of safety systems.
In modern VAG group designs, the booster works in conjunction with advanced vehicle electronics, ABS/ESP systems, and extensive onboard diagnostics. Using an original component from the same design family allows for maintaining consistency in braking system performance parameters and reduces the risk of control unit errors.
Benefits of using an original brake booster
Choosing an original brake booster with a master cylinder for the Audi A3 8Y and Volkswagen Golf Mk8 primarily means:
- maintaining factory brake pedal characteristics and predictable response to pressure,
- proper cooperation with electronic stability control systems and driver assistance features,
- reducing the risk of leaks and pressure drops in the brake circuits,
- easier diagnostics and maintenance due to compliance with manufacturer documentation.
For the user, this means more repeatable, stable braking and a lower risk of system malfunction in emergency situations. The used OEM component with preserved structure and mounting geometry allows for seamless integration with the existing installation in the vehicle.
Selection by numbers and compatibility
Due to differences in equipment configurations, engine versions, and model years, the selection of a brake booster with a master cylinder for the Audi A3 8Y and Volkswagen Golf Mk8 should be based on the OEM part number and interchangeable numbers. This helps avoid problems with installation, incompatibility of connectors, diameters, or brake circuit layouts.
In practice, this means that before purchasing, it is worth verifying the markings on the old part or using data from the manufacturer's catalog. This ensures full compatibility with the factory braking system, and installation is limited to standard workshop procedures.
Condition, preparation for installation, and operation
The offered item comes from the used original parts segment and is intended for re-installation in a vehicle after standard workshop verification. Replacing the brake booster with a master cylinder is particularly recommended in the case of:
- a noticeable drop in braking efficiency despite correct brake pads and discs,
- unusual pedal operation (excessive hardness or "sinking"),
- confirmed leaks within the master cylinder or booster.
To maintain stable braking system performance, it is recommended to perform proper system bleeding after installation and adaptation in the control unit (if required by the service procedure for the specific model).
Brake system expansion and related components
If you are planning a comprehensive repair or upgrade of the braking zone in your Audi and need other elements from the same group, such as pumps, boosters, or regulators, check the available parts in the Audi brake boosters and brake force regulators category.
To maximize the potential of the used brake booster and master cylinder, it is worth ensuring proper operation and periodic inspection of the entire system. Practical tips on maintenance and the use of dismantled components can be found in the article How to extend the life of used car parts?, which describes proven procedures for mechanical and hydraulic elements.
Delivery details
Ship to: United Kingdom
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Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
In the automotive store Global Parts, we offer fast and secure deliveries for our customers in United Kingdom, ensuring maximum compliance with local service standards. Each order is processed with the utmost attention, guaranteeing a fluid shopping process and a timely delivery. If you need assistance in choosing the right part, our team of consultants will be happy to help you find the right part for your vehicle and provide information on installation, availability and parameters of the selected components.