Hyundai Santa Fe soft brake pedal issue persists after multiple master cylinder replacements on Hyundai Santa Fe

Some Hyundai Santa Fe owners report experiencing a persistent soft brake pedal issue, even after multiple master cylinder replacements. This problem may arise due to air bubbles in the brake lines, which can lead to a spongy feel and affect fluid circulation. Additionally, some owners find that a sinking pedal under prolonged pressure could indicate potential hydraulic problems. The presence of air in the brake system, often caused by leaks, can also result in a loss of brake pressure. After replacing the master cylinder, it's crucial for owners to perform a full bleed of the brake system to eliminate any trapped air. Furthermore, a thorough inspection of calipers, hoses, and other brake components is essential to identify any contributing issues. If these steps do not resolve the problem, seeking assistance from a qualified mechanic or dealership experienced in brake system diagnostics is highly recommended.