What Causes Soft Brakes After Bleeding?

1 Answers
Gonçalves
07/30/25 9:17am
If the brakes still feel soft after bleeding, it may be due to long-overdue brake fluid replacement or leakage from the master cylinder piston. Below are the specific reasons for soft brakes after bleeding: Long-overdue brake fluid replacement: Brake fluid should normally be replaced every 2 years or 50,000 kilometers. Brake fluid has the property of absorbing moisture from the air. If not replaced in time, excessive water content inside the fluid can generate vapor, leading to air pockets in the brake lines. This affects braking performance, resulting in soft brakes. Master cylinder piston leakage: Due to prolonged use, the rubber seals inside the master cylinder piston may deteriorate, causing leakage and fluid backflow. This condition results in soft brakes and potential leakage from the wheel cylinders. Insufficient hydraulic pressure in the brake system leads to soft braking.
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