Volkswagen Jetta persistent soft brake pedal issue despite multiple master cylinder and ABS replacements on Volkswagen Jetta

Some Volkswagen Jetta owners report experiencing a persistent soft brake pedal issue even after multiple master cylinder and ABS replacements. This problem may stem from a brake fluid leak, which allows air to enter the system through compromised brake lines or connections, resulting in a spongy pedal feel. Additionally, trapped air in the brake lines can lead to similar symptoms, as it compresses under pressure. Some owners also report that leaking calipers fail to apply sufficient pressure to the brake pads, further contributing to the soft pedal sensation. Furthermore, a clogged brake booster can hinder pedal assistance, making the brake pedal feel less responsive. It is crucial for owners facing these issues to have their vehicles inspected by a qualified mechanic to diagnose and address the underlying problems promptly, ensuring safety and proper brake function.