What causes the brake noise in Golf 7?
2 Answers
Here are the reasons for brake noise in Golf 7: 1. If it's a screeching sound, first check if the brake pads are nearly worn out (the warning tab is making noise). If they are new pads, check if there are any foreign objects caught between the brake disc and pads. 2. If it's a dull sound, it's mostly an issue with the brake caliper, such as worn sliding pins or a detached spring plate. 3. If it's a hissing sound, there could be multiple issues, including problems with the caliper, brake disc, or brake pads. Additional information: 1. If the noise persists, first check if there is any brake drag. Poor caliper retraction can cause prolonged friction between the disc and pads, leading to noise under certain conditions. Also, check if any foreign objects are stuck between the pads and disc. 2. If the pads are new, check if the brake disc has grooves, as localized friction can cause noise. If the disc is fine, consider whether the brake pads are too hard or if the noise-reducing shims were installed incorrectly.
In my over ten years of repairing cars, the brake squealing issues I've encountered with the Golf 7 are mostly caused by the brake pads. The OEM brake pads from VW contain a high metal content—they're indeed wear-resistant, but when cold starting, the hard-on-hard contact easily leads to squealing, especially on rainy days when a layer of rust forms on the discs. A couple of brake applications then sound like nails on a chalkboard. Some owners switch to aftermarket ceramic pads and immediately enjoy quietness. If your brakes squeal for a few hundred kilometers after replacement, it's normal—just apply a few hard brakes to wear them in. However, if you hear sharp grinding noises even with the windows up, there's likely a small stone stuck, and it needs immediate attention.
