BMW 1 3 SERIES E81 E87N E88 E90 E90N E91 E91N E92 E93 Vacuum pipe break servo

BMW 1 3 SERIES E81 E87N E88 E90 E90N E91 E91N E92 E93 Vacuum pipe break servo is an original brake system component designed for BMW 1 Series E81, E87N, E88 and 3 Series E90, E90N, E91, E91N, E92, E93 models. As an OEM part, it ensures proper vacuum routing to the brake servo, which translates into stable and predictable brake booster operation. A used component of this type is a reasonable, cost-effective choice when servicing the brake system in BMW cars of this generation.

Specifications and technical data

• SKU: rhd-7549698-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 11667549698
• Substitutable numbers: 11667549698, 7549698
• Category: Other Engine Parts

Purpose and technical function

The BMW 1 3 SERIES E81 E87N E88 E90 E90N E91 E91N E92 E93 Vacuum pipe break servo is responsible for transporting vacuum from the engine intake system to the brake servo. In BMW 1 and 3 Series E8x/E9x generation models, this component is precisely matched to the engine bay geometry, which minimizes the risk of abrasion, leaks, and collisions with other components.

A properly functioning vacuum pipe is crucial for:

• maintaining stable brake assistance under various engine loads,
• ensuring consistent brake pedal feel,
• reducing the risk of vacuum loss and increased braking distance.

Compatibility with BMW 1 and 3 Series

The offered item is intended for selected versions of the BMW 1 Series E81, E87N, E88 and 3 Series E90, E90N, E91, E91N, E92, E93. As a result, the user receives a component structurally compliant with the factory brake system, which facilitates installation and helps maintain the original operating characteristics of the brake servo.

Before purchasing, it is worth verifying the compatibility of the part with the specific engine version and vehicle year to ensure a perfect fit with the existing vacuum installation.

Installation characteristics

The pipe is designed as a replaceable element in the factory BMW brake system, allowing for service using standard workshop procedures. The pipe construction takes into account:

• dedicated routing in the engine bay,
• the use of appropriate connectors for the servo and vacuum source,
• resistance to temperature and operating conditions typical for BMW E8x/E9x power units.

Thanks to this, replacing a worn or leaking pipe with an original BMW component allows you to restore proper brake booster performance without the need for system modifications.

Part condition and service application

The offered vacuum pipe is a used part, sourced from dismantling, which provides a cost-effective solution while maintaining the manufacturer's original specifications. This type of component is particularly useful in situations where:

• a leak or crack in the existing pipe has been identified,
• there are fluctuations in brake assistance force,
• it is necessary to replace the element with a part consistent with the factory BMW design.

Choosing an original vacuum pipe reduces the risk of compatibility issues typical of aftermarket replacements with universal geometry.

Expanding BMW brake system service

If you are planning a comprehensive repair or upgrade of the braking area in your BMW and need other elements from the same group, such as flexible hoses, mounting elements, or additional servo accessories, check the available parts in the Other BMW category.

For users interested in comparing technical solutions in sports models of other brands, including engine, brake, and chassis designs, an article describing the differences between high-performance and standard versions may be helpful – details can be found in the entry Audi RS vs other models – what is hidden under the hood and chassis?.