BMW Z3 Brake Master Cylinder Replacement

Описание: BMW Z3 service brakes consist of hydraulic brake calipers and rotors, one at each wheel.
When the brake pedal is pressed, brake fluid is forced out of the brake master cylinder and through the brake lines to each brake caliper. Pistons in the calipers push out and clamp brake pads against the brake rotors (or discs), thus slowing down the vehicle. A vacuum assisted brake booster multiplies the braking force exerted by the driver at the brake pedal.

If the brake master cylinder cannot create enough pressure to clamp the brake pads firmly against the brake rotors, the brakes will have a poor feel. Over time seals get worn in the master cylinder and can leak. In this tech article we will show you how to replace the brake master cylinder in a few easy steps.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

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Project Time: 2 hours
Tab: $150
Tools: 11mm, 12mm line wrenches, 13mm socket, T25 Torx bit socket
Parts Required: Brake fluid, brake cleaner, brake master cylinder
Performance Gain: Good brake operation
Complementary Modification: Replace worn brake parts