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Genuine BMW 2500 Brake Master Cylinder

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1 Brake Master Cylinder found

  • BMW 2500 Brake Master Cylinder - 34311120479
    Diagram for BMW 2500 Brake Master Cylinder - 34311120479
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    Product Specifications
    • Replaces: 34-31-1-117-594
    • Warranty: This genuine part is guaranteed by BMW's factory warranty.
    Fits the following Vehicles:
    • 1969-1970 BMW 2500

BMW 2500 Brake Master Cylinder

The BMW 2500 Brake Master Cylinder uses the force applied to the brake pedal to exert hydraulic pressure through its pistons. The Brake Master Cylinder is durable and helps improve effectiveness and safety. Thus, it is essential for any driver who wants to improve their performance. The Brake Master Cylinder is compatible with numerous 2500 types and its dual-circuit design enables the driver to brake even when one circuit fails, providing extra safety. Machined from either cast iron or aluminum, the housing contains twin pistons, seals, and springs which run in a machined bore. The pushrod mechanism that drives the pistons to pressurize the brake fluid has return springs. Subsequently, it will get ready for the next application. The reservoir, which is built into or placed on top of the housing, keeps the system filled and air-free. At the same time, it is securely capped to prevent leakage. Their accessibility and serviceability allow easy maintenance and inspection, which ensures leakage and corrosion issues are fixed without delay. The BMW 2500 Brake Master Cylinder improves the performance of a vehicle in addition to displaying BMW's commitment to engineering excellence. The BMW 2500 combines an innovative design with reliable performance. This design coupled with performance makes it a special feature in the automotive world. With a production total nearing 190,000 units, the BMW 2500 is an integral part of BMW history with solid construction featuring a Brake Master Cylinder that stands for quality and safety. The Brake Master Cylinder also helps maintain consistent pedal feel during repeated braking and supports dependable response in everyday driving conditions.

If you are looking for OEM BMW 2500 Brake Master Cylinder, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW 2500 Brake Master Cylinder that come backed by the manufacturer's warranty.

BMW 2500 Brake Master Cylinder Parts Questions & Experts Answers

  • Q:
    How to properly dismantle and reassemble a Brake Master Cylinder while ensuring cleanliness and correct operation on BMW 2500?
    Posted by Dong D.
    A:
    Plug the fluid outlets in the reservoir and pull the flexible hoses from the sealing plugs in the brake master cylinder. To prevent fluid loss, raise the free ends of the flexible hoses above the fluid level in the reservoir and tie them. Disconnect the brake pipes from the brake master cylinder, noting the connections: 1 front right-hand, 2 front left-hand (second brake circuit), 3 front right-hand, 4 front left-hand, and 5 both rear brakes (first brake circuit). Plug the open ends of the pipes to keep dirt out. Unscrew the mounting nuts and detach the brake master cylinder, collecting the sealing ring between the mounting flange and the brake servo unit. To dismantle, press the secondary piston down slightly to relieve spring pressure, then remove the stop screw and circlip, extracting the secondary piston assembly. Remove the stop washer, seals, and intermediate ring. Dismantle the piston assembly by removing the special screw, spring cap, spring, spring cup, pressure plate, and seals. Use low-pressure compressed air to eject the primary piston, then remove its spring, spring cup, pressure plate, and seals. Wash all parts in approved cleaners, inspect for wear or damage, and renew any faulty components, ensuring to use new rubber seals and a new copper gasket for the stop screw. Maintain cleanliness during reassembly, coating internal components with brake cylinder paste or approved brake fluid. Clamp the brake master cylinder vertically in a vice with the open end down to prevent displacement of internal components. Use tool 6063 if available to ensure seals are correctly entered; if not, carefully enter seals using fingers without turning back the lips. Reassemble in reverse order, ensuring the primary piston assembly is pushed down against spring pressure before inserting the stop screw to retain it in position. Before installing the brake master cylinder assembly, check the sealing ring and renew if necessary to ensure proper operation of the vacuum servo unit. Temporarily install the brake master cylinder assembly with a piece of Plastigage between the piston and the servo pushrod, tighten the nuts to the specified torque, then remove the brake master cylinder to check the Plastigage thickness, which should be 0.5mm (0.02in). Adjust the clearance if necessary by adding a shim of suitable thickness, then install the brake master cylinder assembly in reverse order of removal and bleed the braking system.
    Answered by BMW Parts Specialist Koleman / Dec 17, 2023

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