Mini Cooper S R55 R56 R57 LCI Power Brake Unit Vacuum Pipe Line 7619470

The Mini R56 R57 S Brake Booster Vacuum Hose is a brake system component designed for petrol engine models, responsible for the stable supply of vacuum to the brake booster. A properly selected vacuum hose ensures correct brake assistance, which translates to confident and predictable brake pedal operation in everyday use.

Specifications and technical data

• SKU: 7619470
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7619470
• Substitutable numbers: 11667619470, 7619470, 34332753127, 2753127, 11667602873, 7602873
• Fuel type: Petrol
• Category: Brake Hoses, Lines & Fittings

Technical Characteristics of the Brake Booster Vacuum Hose

The brake booster vacuum hose in the Mini R56/R57 S series works in direct connection with the vacuum pump and the brake booster, which is why its seal and appropriate diameter are crucial for the effectiveness of the braking system. The hose's construction is adapted to the conditions in a petrol engine bay – high temperatures, vibrations, and variable vacuum levels.

A properly selected hose:

• maintains stable vacuum in the brake booster,
• reduces the risk of reduced braking effectiveness during sudden braking,
• ensures proper cooperation with the factory engine equipment.

Role in the Mini Braking System

In Mini vehicles with petrol engines, the brake booster uses vacuum to reduce the force required on the brake pedal. The brake booster vacuum hose acts as an intermediary element in this system – any leaky or improperly selected hose can lead to an extended braking distance, a harder brake pedal, or unstable engine operation at idle.

Replacing the hose is particularly recommended when symptoms such as:

• a noticeably harder brake pedal on the first press,
• uneven engine operation during engine braking,
• audible air hissing around the booster or hose.

Why Choose a Hose from the Brake Hoses, Lines, and Connectors Category

Components from the Brake Hoses, Lines, and Connectors category are designed for operation in critical areas of the braking system, where resistance to pressure, temperature, and chemical factors is important. Using a hose designed for a specific Mini application allows you to maintain the system's factory operating parameters, without the need for modifications or fitting universal replacements.

For this type of part, it is particularly important to:

• maintain the correct hose routing geometry in the engine bay,
• ensure resistance to kinks and crushing,
• ensure compatibility with the booster and vacuum system ports.

Selection and Installation of the Brake Booster Vacuum Hose

When selecting a vacuum hose for the Mini R56/R57 S, pay attention to compliance with manufacturer markings and interchangeable numbers – this helps avoid fitting problems and ensures correct hose positioning relative to other components in the engine bay. The hose should be installed using the factory mounting points, which minimizes the risk of abrasion and leaks in the long term.

Due to the nature of the braking system's operation, it is recommended that the installation and leak testing of the hose be performed by someone experienced in servicing braking systems in Mini vehicles.

Safety and Knowledge When Purchasing Brake System Components

When selecting used brake system components – including vacuum hoses, brake lines, or connectors – it is advisable to use reliable sources and proven inspection procedures. If you want to expand your knowledge on safely choosing used brake components, check out our guide: how to safely choose used brake system components – discs, calipers, and ABS.

If you are looking for other Mini brake hoses, lines, and connectors adapted to different engine and body versions, check out our dedicated category: Mini brake hoses, lines, and connectors.