BMW 3 Series E90 E92 E93 M3 LCI Brake Servo Unit Vacuum Pipe Line Hose 2283708

BMW 3 Series E90 E92 E93 M3 LCI Brake Servo Unit Vacuum Pipe Line Hose is an original BMW braking system component, designed to work with the brake servo in post-facelift models. Thanks to its factory geometry and connectors, it ensures stable vacuum pressure and predictable brake pedal response, which translates into safe and comfortable braking in the sporty M3 variants of the 3 Series.

Specifications and technical data

• SKU: rhd-2283708
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2283708
• Substitutable numbers: 34302283708, 2283708, EM
• Category: Brake Hoses, Lines & Fittings

Purpose and function in the braking system

This vacuum hose is part of the Brake hoses, lines, and connectors category and is responsible for transporting vacuum from the intake system to the brake servo. A properly functioning hose:

• ensures adequate brake booster assistance,
• stabilizes brake pedal operation during dynamic driving,
• minimizes the risk of reduced braking efficiency resulting from leaks.

The original design, tailored to the BMW 3 Series E90, E92, and E93 M3 LCI, allows for maintaining the factory routing of the hose in the engine bay and proper positioning relative to the servo and other components.

Construction and fitment for BMW M3 LCI

The hose was designed by BMW with the specific requirements of the M3 version in mind, where the braking system operates under higher loads than in standard 3 Series models. The connectors and hose diameter used are adapted to the factory brake servo, which facilitates installation and reduces the risk of leaks resulting from poor fitment.

The part is ready for installation in place of the original hose, without the need for any system modifications. This allows you to maintain the integrity of the entire braking system and avoid problems typical of aftermarket replacements with universal dimensions.

Characteristics of the used component

The part comes from disassembly and has the status of a used OEM component. This means it retains the factory BMW specification while providing an economical solution for repairing or restoring the original braking system configuration. In the case of vacuum hoses, it is particularly important to maintain proper rigidity and tightness – using an original part increases the chance of maintaining these parameters within the limits specified by the manufacturer.

Application in service and upgrades

The BMW 3 Series E90 E92 E93 M3 LCI Brake Servo Unit Vacuum Pipe Line Hose is suitable both for standard repairs after a failure and for restoring a complete, factory-spec braking system after modifications or engine swaps. Replacing a worn or leaking hose with an original part allows you to:

• restore predictable brake booster operation,
• reduce the risk of a "hard" brake pedal during sudden braking,
• maintain compliance with BMW M3 factory design specifications.

If you are planning a comprehensive repair or upgrade of the braking area in your BMW and need other components from the same group, such as flexible hoses, rigid lines, or servo connectors, check out the available parts in the BMW brake hoses, lines, and connectors category.

Safe selection of used braking system components

When choosing a used vacuum hose for the brake servo, it is worth paying attention to the condition of the connectors, the flexibility of the material, and the absence of visible mechanical damage. It is also good practice to verify compatibility with the specific body and engine version to avoid problems with hose routing in the engine bay.

If you want to organize the process of selecting used brake components – from hoses and calipers to control elements – the following guide will be helpful: Second-hand braking system: how to safely choose discs, calipers, and ABS?. It will make it easier for you to assess what to look for when buying and installing used parts in your BMW.