Polo wheel noise problem
Polo 1.0 TSI
Hello, My 2017 Polo 6 with 88k km has the noise problem shown in the video. https://youtu.be/K3a8Cdmv7m4?si=RbAvoSjle6VOOco1 At an independent shop they sprayed some brake pad spray and brushed it off, at the authorized service they also did a cleaning and said the disc had been machined and that a disc replacement was needed to fix the noise. The cost of replacing the disc isn't an issue (I haven't gotten a price yet) but I'm worried the noise will continue even after replacing it. Has this happened to anyone before?
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1 repliesThis kind of noise is usually related to a mismatch between the brake disc and pad surfaces. If the disc has been machined (turned), its surface hardness and flatness may be off; in that case cleaning or spray only has a temporary effect and the noise can come back after a while. The pad material resonating with the disc, disc surface runout, glazing on the pad edges, or the caliper slides not moving freely enough can also trigger the noise. Replacing the disc solves the problem in most cases, but if the pads, caliper slides, and installation tolerances aren't all checked together, the noise can persist. Since the brake system is directly tied to safety, a thorough check and correct installation are important.
Translated from Turkish