Ford Focus Mk3 Brake Servo Booster Master Cylinder Reservoir BV61-2B195-TF

Ford Focus Mk3 Brake Servo Booster Master Cylinder Reservoir is a complete solution from the Brake Servos and Proportioning Valves category, designed for vehicles with a petrol engine. The set ensures stable transmission of pressure to the brake pedal, which translates into predictable system response and comfortable, safe vehicle operation.

Specifications and technical data

• SKU: BV61-2B195-TF
• Mark: Ford
• Condition: Used
• OEM Part Number: BV61-2B195-TF
• Substitutable numbers: BV61-2B195-TF, BV612B195TF
• Fuel type: Petrol
• Part type: Brake Servo & Master Cylinder
• Category: Brake Servos

Purpose and function in the braking system

The presented assembly of the brake servo, master cylinder, and fluid reservoir was developed by Ford specifically for the third-generation Focus model with a petrol engine. This component is responsible for increasing the pressure force on the pedal and precisely metering pressure in the brake circuits, which is crucial for stable vehicle handling in city traffic and on the road. Combining the servo with the master cylinder and reservoir into a single unit facilitates diagnostics and replacement, and also reduces the risk of leaks at the connections between components. As a result, the braking system maintains structural integrity and predictable operating parameters.

Benefits of using an original Ford assembly

Using a complete, original assembly from the Brake Servos and Proportioning Valves category allows you to maintain the factory brake pedal operating characteristics without the need for installation interference or mounting adaptations. The properly selected servo ratio and master cylinder geometry ensure:

• consistent, repeatable pedal feel throughout the entire operating range,
• correct pressure distribution in the braking system,
• stable operation of assistance systems (e.g., ABS/ESP – if present in the vehicle),
• reduced driver fatigue due to less force required for effective braking. As a part sourced from dismantling, this assembly represents a reasonable compromise between cost and maintaining the original manufacturer's specification, which is particularly important for critical safety components.

Compatibility with petrol units

The system has been configured to work with petrol engines, which means it is matched in terms of vacuum characteristics and hydraulic requirements. In practice, this translates into:

• correct servo response to changes in vacuum generated by the power unit,
• appropriately selected capacity and stroke of the master cylinder,
• stable operating pressure under typical petrol engine operating conditions. As a result, the driver receives predictable, linear brake operation without the "too soft" or excessively hard pedal effect, which is important for both calm and dynamic driving.

Condition, installation, and good service practices

The item is offered as a used part, which requires standard verification before installation in the vehicle – it is recommended to check for leaks, the condition of the ports, threads, and mounting points. Replacing the complete servo–master cylinder–reservoir assembly simplifies workshop work because it reduces the number of connections that need to be disassembled and resealed. To maximize the potential of this component, it is worth performing the following after installation:

• proper bleeding of the braking system in accordance with the service procedure,
• replacing the brake fluid with fresh fluid of the recommended class,
• checking the condition of flexible and rigid lines,
• testing the brake pedal operation on a stand or under safe road conditions.

Knowledge expansion and part selection

For users who want to better understand the relationships between the braking system and other comfort and safety systems in the vehicle, a guide on selecting and servicing components responsible for driving conditions throughout the year may be helpful – detailed tips can be found in the article Air conditioning and heating – part selection and maintenance for year-round comfort. If you are planning a comprehensive repair or upgrade of the braking zone in your Ford and need other elements from the same group, such as servos, proportioning valves, or complete booster assemblies, check the available parts in the Ford Brake Servos and Proportioning Valves category. To better take care of the durability of installed dismantled components, it is worth familiarizing yourself with practical tips regarding operation and maintenance – you will find them in the guide How to extend the service life of used car parts?.