What are the solutions for the sharp noise when braking in a Sagitar?
4 Answers
Here are the solutions for the sharp noise when braking in a Sagitar: 1. Squealing noise: If it's a squealing noise, check if it indicates that the brake pads are nearly worn out (the warning tab is making the sound). If they are new pads, then check if there are any foreign objects caught between the brake disc and the pads. 2. Dull noise: If it's a dull noise, it's mostly an issue with the brake caliper, such as worn sliding pins or a detached spring plate. 3. "Hissing" noise: If it's a "hissing" noise, then there could be multiple issues, including problems with the caliper, brake disc, or brake pads. If the noise persists, first check if there is any brake drag, as poor caliper retraction can cause prolonged friction between the disc and pads, leading to noise under certain conditions. Then check if there are any foreign objects stuck between the pads and the disc. If the pads are new, inspect the brake disc for grooves, as localized friction can cause noise. If the disc is fine, consider whether the brake pads are too hard or if the noise reduction shims were installed incorrectly.
My Sagitar used to have this sharp screeching sound when braking, really ear-piercing. Later, the mechanic found the brake pads were worn to the limit, and that metal warning indicator was scraping against the rotor making noise. After replacing with new pads, it became quiet immediately. If new pads still squeak, it might be due to excessive metal particles on the surface - find an empty lot and do a few hard stops to wear them smooth. Also, brake rotors often squeak when rusty after car washes, but it'll go away after driving a few minutes with some extra braking. If it suddenly squeaks after rain, it's almost certainly just surface rust - nothing to worry about. Remember to check if the rotors have deep grooves from debris - if so, just resurfacing them will do, no need for full replacement.
Brake squealing is usually nothing to worry about. I've encountered it three times: First time was a small stone stuck in the brake pad, which got dislodged after reversing and slamming the brakes a couple times. The second time was due to morning frost in winter causing the brake pads to freeze, but the noise disappeared automatically after driving two kilometers. The third and most troublesome case was due to lack of grease on the brake caliper guide pins, preventing the brake pads from retracting properly - applying some special grease solved it. I recommend first identifying the sound characteristics - continuous squealing might be the wear indicator warning, while a rattling noise suggests foreign object interference. If you want to DIY, removing the wheel and cleaning brake dust can be effective, but those with poor mechanical skills should visit a repair shop to avoid damaging the brake caliper.
This abnormal noise must be inspected promptly. Last week, my neighbor's car nearly caused an accident on the highway due to ignoring brake noise, which led to brake disc deformation. There are three common fault points: excessively worn brake pads need replacement; scratched brake discs require resurfacing; stuck brake caliper guide pins need lubrication. During maintenance, remind the technician to measure the brake disc thickness—replace if it's below the manufacturer's standard. For aftermarket brake pads, ceramic compound is recommended—though more expensive, they're quiet and wear-resistant. Temporary squeaking in rainy conditions is normal, but persistent noise in dry weather must be investigated. Don't mask warning sounds with music.
