{"id":2636124,"date":"2025-12-12T14:04:52","date_gmt":"2025-12-12T13:04:52","guid":{"rendered":"https:\/\/www.niemibil.se\/?p=2636124"},"modified":"2025-12-12T14:04:53","modified_gmt":"2025-12-12T13:04:53","slug":"why-do-brakes-become-soft-and-spongy","status":"publish","type":"post","link":"https:\/\/www.niemibil.se\/en\/why-do-brakes-become-soft-and-spongy\/","title":{"rendered":"Why do brakes become soft and spongy?"},"content":{"rendered":"

That the brake pedal feels soft, rubbery, or spongy<\/strong> when you press it is a clear symptom that something is wrong with the brake system. This is not only annoying, it can be dangerous and affect your ability to stop the car in time. <\/strong><\/p>\n\n\n\n

In this article, we'll go over the most common causes of soft brakes, what it means, and what you can do about it.<\/p>\n\n\n\n

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When everything is working properly, the brake pedal should be firm and provide a firm resistance when you press it. A spongy or soft pedal<\/strong> instead it feels like it is sinking further down than usual and is easier to push down<\/strong>, sometimes all the way to the floor. This is because the brake system cannot maintain the pressure required for the brakes to respond quickly and effectively.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

The most common reasons why brakes feel soft<\/strong><\/p>\n\n\n\n

1. Air in the brake system<\/strong><\/p>\n\n\n\n

The most common reason for a soft brake pedal is air that has entered the brake system<\/strong>. The brake system is based on hydraulic pressure, meaning that fluid is forced through lines. But air is compressible<\/strong>, which means it \u201csqueezes\u201d when you step on the pedal \u2014 and that makes the pedal feel soft instead of firm.<\/p>\n\n\n\n

Air can enter the system if:<\/p>\n\n\n\n