What is the reason for the abnormal noise when stepping on and releasing the brakes of the new Polo?
2 Answers
The abnormal noise when stepping on and releasing the brakes of the new Polo may be caused by the following two reasons: Reason 1: Faulty brake caliper. Remove the tire and take off the brake caliper. Press the brake caliper piston by hand. If the piston cannot return to its normal position, this fault can be confirmed. The brake caliper can be replaced, and during the warranty period, you can directly go to the 4S store for warranty replacement. Reason 2: Abnormal noise caused by worn brake pads. Remove the tire and check whether the thickness of the brake pads is normal to confirm this fault. If the brake pads are severely worn, abnormal noise will occur when braking, and new brake pads need to be replaced to solve the problem.
I just picked up my new Polo, and it squeaks when I step on the brakes, and there's a friction sound when I release them, which really startled me. I asked the 4S store salesperson, who explained that the brake pads and discs are new and haven't been properly broken in yet. They said that after stepping on the brakes a few times, the surface burrs will naturally smooth out, so there's no need to worry too much. However, they advised that if the noise persists after driving a few hundred kilometers, I should check whether the brake discs have collected dust or rust, especially after rain or washing the car when residual moisture can easily cause rust. They recommended trying more gradual braking during normal driving to accelerate the break-in process and avoid damaging the discs by braking too hard. If it continues to be bothersome, don't hesitate—just drive back to the shop for a check-up. Safe driving is no small matter. It's normal for new cars to have minor issues, but they shouldn't be ignored. My neighbor's car ended up with reduced braking power because they didn't address the issue in time.
