Should Brake Pads Be Replaced All at Once or Just the Front Wheels?

[OEloise]

Whether to replace all brake pads or just the front ones depends on the degree of wear. Here is relevant information about brake pad replacement: 1. Consider replacement when the thickness is below the standard value. In most cases, it's advisable to check the brake pad thickness when the vehicle has driven around 20,000 kilometers. If the brake pads are relatively thin or below the standard value, replacement should be considered. 2. For safety reasons, brake pads must be replaced promptly. Since braking force is primarily concentrated on the front wheels, the front wheels should be inspected first based on mileage. However, in rare cases with rear-wheel-drive vehicles, the wear on the front and rear wheels may be similar or even faster on the rear wheels. 3. The braking system is a complete setup, including brake discs, brake pads, and electronic control systems. Among these components, brake pads are the most prone to wear. To draw an analogy, brake pads are like the erasers we used when writing as children—each time the brakes are applied, it's akin to using the eraser once, gradually wearing it down.