What is the reason for the abnormal noise in the brakes of Golf 7?
3 Answers
Golf 7 brake abnormal noise is caused by excessive wear of the brake pads. When the brake is pressed, the friction between the brake disc and the brake pads reaches the warning position of the brake pads, resulting in sharp metal noise. In this case, simply replacing the new brake pads can solve the problem. Golf 7 refers to the seventh generation of the Golf product, offering 9 body colors including Monsoon Grey, Maya Red, Charm Purple, Coral Blue, Deep Black, Crystal Silver, Tahiti Gold, Polar White, and Tanggula White. In terms of body size, the Golf 7 has a length, width, and height of 4255mm, 1799mm, and 1452mm respectively, with a wheelbase of 4255mm.
As a long-time owner of a Golf 7 with 5 years of experience, brake noise is all too common. The most frequent cause is hard metal particles in the brake pads, which cause a squealing sound during the first few brakes when starting the car cold, especially noticeable on rainy days. Another common issue is raised edges on the brake discs; every time you brake, the pads rub against these edges, creating a screeching noise. Last time during maintenance, the mechanic fixed it by sanding the edges flat. Some owners who replaced their brake pads with aftermarket ones but didn’t install noise-damping shims experience terrifying clunking sounds when going over bumps. If the metal scraping sound is particularly sharp, it’s likely the wear indicator on the brake pads signaling it’s time for a replacement. Here’s a handy tip: after a long drive, avoid washing the car and check the brake discs for deep blue burn marks. If present, it means the pads weren’t installed properly, causing localized overheating and deformation, which also leads to creaking noises.
With over ten years of experience in auto repair, there are four main situations that cause brake noise in the Golf 7. First, the guide pins lack lubrication and get stuck, preventing the brake pads from fully retracting, which causes friction noise. The solution is to disassemble and reapply high-temperature grease. Second, rust on the backplate of the brake pads causes friction noise against the caliper. Simply remove the rust by scraping or cleaning. Third, loose suspension components can create a clunking sound when going over speed bumps while braking. In this case, check the ball joints of the control arms. The last and most dangerous situation is a damaged wheel bearing, which produces a rhythmic humming noise when braking—the faster the speed, the higher the frequency. Immediate inspection is required. I once encountered a case where the owner mistook bearing noise for a brake issue, and the wheel nearly came off.
