BMW F10 F11 Vacuum Pipe Hose Brake Servo Unit Line N20 Petrol 7591540

BMW F10 F11 Vacuum Pipe Hose Brake Servo Unit Line N20 Petrol is an original brake system component designed for N20 petrol engines. Thanks to its precise fit to the factory installation, it ensures stable vacuum for the brake servo, which translates into predictable, safe, and repeatable brake pedal operation in daily use.

Specifications and technical data

• SKU: rhd-7591540
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7591540
• Substitutable numbers: 11667591540, 7591540, BG
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Application and function in the brake system

The offered pipe belongs to the Lines, hoses, and tubes group and is responsible for transporting vacuum between the pump and the brake servo in BMW 5 Series F10/F11 models with the N20 petrol engine. A properly functioning vacuum line is crucial for:

• maintaining proper brake assistance under various engine loads,
• stable brake pedal force characteristics,
• reducing the risk of decreased braking efficiency during rapid acceleration or engine braking.

In the event of a leak or damage to the pipe, symptoms such as a hard brake pedal, increased braking distance, or unstable idle speed may occur, which is why replacing a worn pipe with a functional OEM component is essential from a safety perspective.

Design and fitment for BMW F10/F11

The vacuum pipe has been designed specifically for the engine bay architecture of the BMW F10/F11 with the N20 unit, which means:

• factory routing along original mounting points,
• appropriately shaped rigid and flexible sections,
• connectors matched to the vacuum pump and brake servo ports.

This solution facilitates installation and allows for maintaining the original routing of the system, without the need for modifications or the use of adapters. For the user, this means shorter service time and a lower risk of leaks compared to replacements with universal geometry.

Operating characteristics in the N20 petrol engine

The N20 petrol engine generates vacuum under specific load conditions, so the pipe must maintain tightness at both high and low vacuum levels. The offered component is adapted to:

• operate in variable engine bay temperatures,
• contact with oil and fuel vapors typical for petrol units,
• long-term exposure to pulsating vacuum without cross-section deformation.

Thanks to this, the brake system maintains predictable parameters, and the response to pedal pressure remains consistent with BMW's factory specifications.

Condition, verification, and benefits of choosing a used part

The pipe is offered as a used item, which in practice means it has been removed from a vehicle and verified for tightness and connector integrity. For many users, this represents a reasonable compromise between cost and functionality, especially for components that do not have moving parts and retain their properties for a long time under proper operating conditions.

If you want to learn more about the specifics of the second-hand parts market and make informed purchasing decisions, it is worth checking out the educational material Used car parts: Myths and facts you need to know, which discusses the most common concerns and real benefits of choosing proven used components.

Complementary BMW vacuum system components

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as vacuum lines, breather hoses, or fluid supply tubes, check out the available parts in the BMW lines, hoses, and tubes category.

Summary

BMW F10 F11 Vacuum Pipe Hose Brake Servo Unit Line N20 Petrol is a factory-fitted brake system component that allows you to restore proper brake assistance and stable engine operation. By choosing an original pipe from the Lines, hoses, and tubes group, you gain compatibility with the factory installation, predictable vehicle behavior, and a technically correct solution for servicing the vacuum system in your BMW.