How Many Kilometers Should Brake Discs and Brake Pads Generally Be Replaced?
3 Answers
Under normal circumstances, brake pads should be replaced every 30,000 to 40,000 kilometers, and brake discs every 60,000 to 70,000 kilometers. The specific situation depends on the actual wear condition. Below is relevant information: 1. Conditions requiring replacement: If there is a sharp metal-on-metal friction sound when lightly braking, first check to rule out noise caused by normal wear-in of the brake pads. If the brake pads are severely worn, replace them immediately. If the noise is caused by damage or scratches on the brake disc, replace the brake disc promptly. 2. Factors affecting wear: The material and structure of low-quality brake discs can easily cause premature wear of the brake pads. Long-term speeding, frequent braking, overloading, and prolonged use under high temperatures are also reasons for severe wear of brake pads and discs. In addition, long-term damage to the brake caliper in the braking system, causing the brake to not release properly, can also lead to prolonged grinding between the pads and discs, resulting in severe wear.
After driving for so many years, I've found that brake discs and pads don't have a fixed mileage. My own car's brake pads wore thin after just 50,000 kilometers, especially since I drive on mountain roads a lot, which really wears them down. A friend who commutes in the city still has thick pads at 70,000 kilometers. Brake discs last even longer, typically needing replacement only after two sets of pads. During my last maintenance, the mechanic said if grooves appear on the disc surface, it's time to replace them, otherwise the brakes might shake. Always pay attention—if you hear squeaking or notice longer braking distances, get them checked. Never wait until they're completely worn out; safety comes first.
I remember the first time I changed the brake pads was when the car reached 48,000 kilometers. At that time, I felt the brakes were spongy when going downhill. The mechanic told me that the replacement cycle for these things depends entirely on the driver: those who love to slam on the brakes might need to change them at around 30,000 kilometers, while gentle drivers can stretch it to 70,000. Brake discs are more durable; based on my experience, they should be checked for thickness at around 100,000 kilometers and replaced if they fall below the standard value. Here’s a little tip: during maintenance, ask the mechanic to measure the brake pad thickness with calipers. If it’s below 3mm, it must be replaced. Nowadays, some cars come with wear indicators that alert you on the dashboard, making things much more convenient.
