Do brake discs and brake pads need to be replaced at the same time?
2 Answers
Brake discs and brake pads do not need to be replaced together. Here is an introduction to brake discs and brake pads: 1. The replacement of brake discs depends on their thickness and wear condition. 2. The brake disc is a very important component in the braking system, and its structure is divided into solid brake discs and ventilated discs. 3. Brake pads, also known as brake linings, are critical safety parts in a car's braking system. They consist of a steel plate, an adhesive heat insulation layer, and a friction block. The maintenance methods for brake pads and brake discs are as follows: 1. Develop good driving habits. 2. Avoid emergency braking. 3. Regularly check brake pads and brake discs. 4. Check the thickness of the friction lining. 5. Have a professional inspect the brake shoes. 6. Use original equipment manufacturer (OEM) brake pads and brake discs for replacement.
I often discuss brake maintenance in car enthusiast groups and am quite familiar with this topic. Brake discs and brake pads don't necessarily need to be replaced at the same time; it mainly depends on their wear condition. Brake pads wear out faster, typically needing replacement every 30,000-50,000 kilometers, while brake discs are more durable and can last over 100,000 kilometers. When replacing pads, it's advisable to check the discs for deep grooves, insufficient thickness, or warping issues. If the discs are in good condition, replacing only the pads can save money; however, if the discs are severely worn, new pads may accelerate damage or cause brake shudder. I personally tried replacing only the pads without changing the discs, which resulted in loud brake noise and later required rework, costing me extra. The key is to have the mechanic measure the disc thickness during every maintenance service; if it's below the specified value, both should be replaced to ensure safe and smooth driving. Daily driving habits also affect wear—for example, frequent hard braking accelerates disc and pad wear. It's recommended to develop smooth driving habits to reduce frequent maintenance needs.
