Audi R8 42 Spyder Brake Servo Master Cylinder Unit 4.2 Petrol Engine 424612105

Audi R8 42 Spyder Brake Servo Master Cylinder Unit for the 4.2 petrol engine is an original braking system component, designed specifically for this model. Thanks to its factory design, it ensures proper brake assistance and stable hydraulic operation, which translates into predictable vehicle behavior. This solution is intended for users who want to maintain compliance with Audi's factory specifications.

Specifications and technical data

• SKU: RHD-424612105
• Mark: Audi
• Condition: Used
• OEM Part Number: 424612105
• Substitutable numbers: 424612105, 424 612 105
• Fuel type: Petrol
• Part type: Brake Servo & Master Cylinder
• Category: Brake Servos

Purpose and compatibility

The presented brake servo and master cylinder unit has been developed for the Audi R8 42 Spyder with a 4.2 petrol engine. The design is adapted to the characteristics of this powertrain, which allows for maintaining the correct pressure in the braking system and the appropriate brake pedal force ratio. Using an original solution reduces the risk of fitment issues and eliminates the need for installation modifications.

Function in the braking system

The brake servo and master cylinder play a key role in generating and transmitting pressure to the brake circuits. In practice, this means:

• assistance of the force applied to the brake pedal,
• stable pressure distribution in the lines,
• maintaining consistent braking characteristics at various speeds.

For a car with the performance of the Audi R8 42 Spyder, a properly functioning servo and master cylinder unit is essential for maintaining predictable vehicle behavior during intensive braking and track driving.

Benefits of using an original component

Using a factory brake servo and master cylinder unit in an Audi R8 brings a number of practical operational benefits:

• compliance with factory specifications – maintaining the parameters intended by the manufacturer,
• proper fitment to the braking system and engine bay geometry,
• consistent cooperation with other braking system components,
• reduction of the risk of leaks resulting from the improper installation of aftermarket replacements.

For users who expect predictable vehicle behavior and want to maintain a configuration close to the factory state, choosing an original servo and master cylinder unit is a technically sound solution.

Product characteristics and condition

The offered brake servo and master cylinder unit comes from the Brake Servos and Proportioning Valves group and is a used item. This means that the component has been previously operated but retains functionality that allows for further use after proper installation. In the case of such a component, it is recommended to have it installed by a specialized service center, which will verify the tightness of the system and the correctness of the line connections.

Expanding the Audi braking system

If you are planning a comprehensive repair or upgrade of the braking area in your Audi and need other elements from the same group, such as servos, proportioning valves, or related modules, check out the available parts in the Audi Brake Servos and Proportioning Valves category.

Service tips and additional materials

When working on the braking system and other vehicle components, it is worth paying attention to the general condition of the installation, the tightness of the lines, and the quality of the parts used. For drivers who want to better plan vehicle maintenance on a broader scale, a guide on selecting and operating components responsible for driving comfort may be helpful – more information can be found in the article Air conditioning and heating – part selection and maintenance for year-round comfort.

If you are interested in a broader perspective on selecting used OEM components for popular models, it is also worth reading the guide The best used car parts – a guide to the most frequently chosen original parts, which helps in making informed choices when selecting components from the secondary market.