What is the reason for feeling less braking power after installing new brake pads?
2 Answers
Just installed new brake pads may feel less effective in braking because their surface is not perfectly flat. During braking, small protrusions on the surface will make initial contact with the brake disc, resulting in reduced contact area and lower friction. This condition will improve after a proper break-in period. More details are as follows: 1. Brake pads are a crucial component of the braking system and a wearable part. It's normal to experience slightly reduced braking force immediately after replacing them. 2. Automotive brake pads, also called brake linings, refer to the friction materials fixed on the rotating brake drum or disc. The friction lining and blocks bear external pressure to create friction, thereby achieving vehicle deceleration.
After installing new brake pads, the feeling of insufficient braking is usually because the brake pads and rotors haven't completed their break-in period. The surface of new brake pads is relatively smooth, and it takes driving several dozen or even a hundred kilometers for them to fully wear in and achieve optimal friction with the rotors. I experienced this myself after changing a set—initially, the brakes felt mushy, which was quite unsettling. Additionally, improper installation, such as misaligned brake pads or debris getting stuck, can also affect braking performance. Don't forget to check if the brake fluid is at the proper level or if air has entered the system, as air can make the pedal feel soft and reduce braking effectiveness. I recommend taking a short trip to allow the pads to break in. If the problem persists, visit a professional shop immediately—safety comes first. Developing a habit of regularly inspecting your brake system can help avoid such issues in the future.
