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BMW 3 Series E46 Brake Servo Unit Master Cylinder Expansion Tank 6755278
SKU: 6755278
Product from a certified dismantling facility
Condition:
Used
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BMW 3 Series E46 Brake Servo Unit Master Cylinder Expansion Tank is a complete, used set from the Brake Servos and Proportioning Valves group, designed for the factory braking system of the BMW 3 Series E46. The original BMW design ensures the correct brake pedal force ratio, stable circuit pressure, and safe operation with other system components.
Specifications and technical data
- SKU: 6755278
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 6755278
- Substitutable numbers: 34336779682 34336785666 34326750798 6755278, 6779682 6785666 6750798, 34336756851 34331164076 34316763670 34316770917, 34336779680 34316776002 34316752540, 6756851 1164076 6763670, 6770917 6779680 6776002, 6752540, PK
- Category: Brake Servos
Purpose and function in the braking system
The described BMW 3 Series E46 Brake Servo Unit Master Cylinder Expansion Tank is responsible for brake force assistance and precise metering of brake fluid pressure in the BMW 3 Series E46. The servo uses engine vacuum to reduce the force required on the pedal, while the master cylinder distributes pressure to the wheel circuits, which translates into predictable vehicle response during braking.
The integrated module with the expansion tank facilitates fluid level monitoring and system maintenance. By maintaining the original geometry and mounting points, this component is properly fitted to the body and brake installation of the 3 Series E46, which reduces the risk of leaks and bleeding issues.
Benefits of using the original BMW assembly
Using the original BMW servo and master cylinder assembly ensures:
- Factory fitment for the BMW 3 Series E46 braking system, without the need for modifications to mounts or lines.
- Consistent cooperation with the factory brake pedal and other system components.
- Stable, repeatable pressure in the brake circuits, which improves pedal feel and vehicle control.
- The ability to maintain the original braking characteristics intended by the manufacturer.
For users who value technically correct and safe solutions, the original servo and master cylinder assembly is a reasonable alternative to aftermarket parts with uncertain parameters.
Condition, origin, and assembly aspects
The item comes from dismantling and is offered as a used OEM BMW component. Before installation, standard service procedures are recommended: checking for leaks, verifying the operation of the master cylinder piston, the condition of the ports, and replacing the brake fluid in accordance with the manufacturer's recommendations. A correctly installed assembly allows for the restoration of full braking system functionality after a servo failure, master cylinder leak, or damage to the expansion tank.
Due to its integrated design, installation is more convenient than replacing individual components – it limits the number of connections and, consequently, potential leak points. This is a practical solution for both accident repairs and comprehensive brake system restoration in the BMW 3 Series E46.
Selection and compatibility with part numbers
The product has a dedicated OEM part number and a set of interchangeable numbers, which facilitates verification of compatibility with a specific version of the BMW 3 Series E46. Before purchasing, it is worth comparing the markings on the removed part with the data in the specification to confirm compatibility with a given engine configuration and model year. This minimizes the risk of mismatch and speeds up the repair process.
In case of doubts regarding selection, it is also helpful to check the markings in the BMW catalog or consult a mechanic specializing in the brand, which allows for precise matching of the brake servo and master cylinder to a specific vehicle.
Brake system expansion and additional resources
If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other elements from the same group, such as pumps, servos, or proportioning valves, check the available parts in the BMW Brake Servos and Proportioning Valves category.
To maximize the potential of the used BMW 3 Series E46 Brake Servo Unit Master Cylinder Expansion Tank and other dismantled parts, it is worth familiarizing yourself with practical tips regarding operation and maintenance. Proven advice can be found in the article How to extend the life of used car parts?, which describes, among other things, good service practices for mechanical and hydraulic components.
Delivery details
Ship to: United Kingdom
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Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
In the automotive store Global Parts, we offer fast and secure deliveries for our customers in United Kingdom, ensuring maximum compliance with local service standards. Each order is processed with the utmost attention, guaranteeing a fluid shopping process and a timely delivery. If you need assistance in choosing the right part, our team of consultants will be happy to help you find the right part for your vehicle and provide information on installation, availability and parameters of the selected components.
