What Causes the Steering Wheel to Shake When Braking?
2 Answers
The reason the steering wheel shakes when braking is due to uneven wear between the brake discs and brake pads, or the brake discs developing sawtooth-like wear. This creates resonance that is transmitted through the steering mechanism to the steering wheel. The only solution to this problem is to replace the brake discs and brake pads with new ones. The braking system is crucial and requires special attention for maintenance. Regular inspections and replacement of brake fluid are necessary. Over time, the friction between the brake pads and brake discs generates metal shavings, which need to be cleaned periodically. During normal braking, the brake discs generate a significant amount of heat due to friction as the vehicle slows down, resulting in high temperatures. Compared to brake pads, brake discs wear out more slowly. However, after prolonged use, the brake discs may become worn, leading to uneven surfaces or insufficient thickness, which can severely affect braking performance over time.
I've been driving for over a decade, and the issue of steering wheel vibration when braking is quite common. The most frequent cause is uneven brake rotors. If you brake too hard or often drive in high temperatures, the brake rotors can warp due to heat, creating an uneven surface—like potholes—which causes strong vibrations in the steering wheel when braking. Another possibility is uneven wear on the brake pads, leading to an unbalanced force distribution. Or, loose shock absorbers in the suspension system can affect stability, naturally transmitting vibrations to the steering wheel. If ignored, the shaking will worsen and may even damage other components. My advice? Avoid sudden braking and try to stop gradually to reduce the risk of heat-induced warping. Regularly check the smoothness of your brake rotors at a garage and have them resurfaced or replaced as needed—this will solve the problem. Good habits like these can extend your car's lifespan and save you from costly repairs.