
Here is a detailed introduction to methods for checking whether brake pads need replacement: 1. Check thickness: New brake pads are generally about 1.5 cm thick. When worn down to one-third of their original thickness (less than 5 mm), immediate replacement is recommended. 2. Listen for sounds: If metallic scraping noises occur during braking, this may indicate the brake pads have worn down to their minimum thickness, causing the wear indicators on both sides to contact the brake disc and produce abnormal sounds, requiring prompt replacement. 3. Check warning indicators: Some vehicle models feature brake wear sensors. Excessive pad wear will cause the sensor wire to contact the brake disc, altering resistance and generating current. This detected signal triggers a brake pad warning light on the dashboard. 4. Feel the pedal: If the brake pedal feels too light or braking requires excessive effort with reduced stopping power, this indicates severe brake pad wear with insufficient thickness, also necessitating immediate replacement.

As a veteran driver with twenty years of experience, I have a lot of expertise in checking brake pads. I usually start with the auditory cues—if there's a screeching sound while driving, it's often a sign that the brake pads are nearly worn out. Next, I regularly open the wheel cover for a visual inspection. New brake pads are about 12mm thick, and they must be replaced once worn down to below 3mm. I also pay attention to the feel of the brake pedal—if it feels spongy or the travel distance increases, it indicates reduced braking efficiency. During car washes, I use a small flashlight to inspect the caliper area for cracks or uneven wear. I check them myself every three months and visit a repair shop every 20,000 kilometers to have a technician measure the thickness with professional tools to ensure it's within the normal range. Long-term neglect of wear not only accelerates brake disc damage but can also lead to accidents in high-risk scenarios like rainy weather. So, developing this habit saves money and enhances safety.

As a regular car owner, I make it a habit to check the brake pads before and after every service. It's simple—just open the wheel cover and visually inspect if the brake pad thickness is worn down below 3mm. While driving, listen for any unusual noises; if you hear a screeching sound, address it immediately. Have a professional mechanic conduct a thorough inspection every six months—they'll use calipers for precise measurements. During regular car washes, pay attention to the wheel area; metal shavings or cracks could indicate excessive wear. Mileage serves as a good reference—my car typically requires a check-up every 30,000 kilometers or so. Brake issues directly impact safety—one failed stop can lead to serious consequences, so I never delay these small tasks. If anything seems off, I schedule maintenance right away. Spending a little time on prevention is always better than regretting an accident later.

I've only had a car for a few years, and my friends taught me some inspection methods. Mainly, drive on a quiet road and listen for any screeching or unusual noises when braking, as those are common signs of wear. Then squat down to check the thickness of the brake pads on the inner side of the wheels—if they're as thin as 2-3mm, it's time to replace them. I've tried using my phone's flashlight to help with visibility, which is quite convenient. Don’t wait until the warning light comes on; if you notice the brakes feeling weaker or vibrating during normal driving, be alert. New drivers shouldn’t shy away from the hassle—regularly leave it to professionals. Safety first is far more important than cutting corners.


