What Causes the Squeaking Sound When Braking on Baojun 310?
2 Answers
Baojun 310 produces abnormal noise when braking due to small metal particles inside the brake pads. Reasons for brake noise in Baojun 310: The vast majority of brake noises originate from the brake pads, accounting for more than 80% of cases. The noise from brake pads is usually caused by the scraping sound when they are worn out. In this case, simply replacing the brake pads will suffice. Another reason could be the aging of the brake pad surface or sharp edges, which can be resolved by grinding the surface and edges of the brake pads. Solutions for brake noise: If a screeching sound occurs when braking, check whether the brake pads are worn out or if there are any foreign objects. If the brake pads are worn out, they should be replaced immediately. If foreign objects are found, remove the brake pads, take out the foreign objects, and reinstall them. If a dull sound occurs when braking, check whether the brake caliper has worn pins or if the spring plates are detached. If any of these issues are found, they should be replaced immediately.
My Baojun 310 started making squeaky brake noises just two years after purchase, and I've researched this issue. The most common cause is worn brake pads - when they thin out, a metal wear indicator scrapes against the rotor to produce that high-pitched squeal. If you've recently replaced the pads, the noise could come from the hard glazed surface of new pads before it wears off. Another possibility is sand or metal debris stuck to the rotor, creating a grinding sound like trapped pebbles. Last time after washing my car, the rusted rotors made squeaking noises that disappeared after a few brake applications. If the noise has a metallic scraping sensation, immediately check for stuck brake calipers to prevent excessive pad wear. During routine maintenance, always have mechanics measure pad thickness - replacement is needed when it's under 8mm.
