Audi Q5 Mk2 FY Brake Servo Booster Master Cylinder ABS 80A612103D

Audi Q5 Mk2 FY Brake Servo Booster Master Cylinder ABS is a component from the Brake Servos and Proportioning Valves group, designed for the braking system of the second-generation Audi Q5 (FY) model. The offered component comes from the original Audi line and, as a used OEM part, allows for a technically correct repair or replacement of the servo without interfering with the brake system's design.

Specifications and technical data

• SKU: 80A612107
• Mark: Audi
• Condition: Used
• OEM Part Number: 80A612107
• Substitutable numbers: 80A612107, 80A 612 107, 80A612103D, 80A 612 103 D
• Category: Brake Servos

Purpose and function in the braking system

The brake servo in the Audi Q5 Mk2 FY is responsible for assisting the pressure force on the brake pedal, ensuring stable, predictable, and comfortable braking modulation. A properly selected servo from the same model group guarantees the maintenance of factory operating parameters, which translates into safe deceleration and consistent operation with the brake proportioning valve and other hydraulic components.

Technical characteristics and fitment

The offered servo comes from the Audi line and is an OEM component, which means full structural compatibility with the factory braking system of the Q5 Mk2 FY. The housing, bulkhead mounting, and interface with the brake master cylinder are designed for specific solutions used in this model, ensuring that installation is predictable, without the need for adaptations or modifications to the installation.

The component has an assigned part number and interchangeable numbers, which facilitates verification of compatibility with a specific vehicle equipment version. In practice, this means the possibility of precise selection of the servo for the car based on catalog data, which is particularly important during workshop work and online orders.

Condition, application, and benefits of installation

The brake servo is offered as a used part, which allows for an economical repair of the braking system while maintaining the original Audi specification. This type of solution is often chosen by workshops and users who expect factory fitment and correct cooperation with existing components, while simultaneously wanting to reduce repair costs compared to purchasing a new part.

Replacing the servo with an original component from the same model group allows you to:

• maintain proper brake assistance and linear pedal response,
• preserve compatibility with the brake proportioning valve and vehicle safety systems,
• minimize the risk of installation problems resulting from the use of replacements with different geometry.

Installation recommendations and selection by numbers

Due to the importance of the brake servo for driving safety, it is recommended that installation be performed by a qualified service center, following procedures for bleeding and checking the system for leaks. Before purchasing, it is worth verifying the compatibility of the part by the OEM number, interchangeable numbers, and vehicle data, such as generation and engine version, to avoid structural discrepancies.

When selecting used brake system components and other parts, it is worth using organized identification procedures based on catalog numbers and vehicle data – practical tips can be found in the Global Parts guide: Safe purchase of used car parts online – a step-by-step guide.

Expansion of the Audi braking system

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 brake master cylinders, proportioning valves, or mounting brackets, check the available parts in the Audi Brake Servos and Proportioning Valves category.

For users who are simultaneously servicing other vehicle systems – including air conditioning and heating – a practical guide describing the selection of used OEM components, service schedules, and frequently asked questions may be helpful: Air conditioning and heating – part selection and maintenance for year-round comfort.