What to do if there are scratches on the brake disc?
3 Answers
As long as the scratch depth does not exceed 0.6 millimeters, it's not a big issue. The causes of deep scratches include: 1. Driving habits: Only the front or rear brake discs have grooves. This situation is generally caused by driving habits and frequently uneven distribution of braking force between the front and rear. 2. External force: Only one brake disc has grooves while others are normal, usually due to material issues or external forces causing this. 3. Possible factors: Foreign objects getting stuck between the brake disc and brake pad, coinciding with heavy braking; uneven force distribution of the brake caliper; manufacturing defects in the brake pads, resulting in uneven mixed materials, making the brake pads too hard or containing large metal particles.
Having driven for many years, I've encountered quite a few issues with brake disc scratches, usually caused by uneven wear of brake pads or embedded sand and stones. For minor scratches, having them professionally polished at a repair shop can solve the problem, saving the expense of buying new ones. However, deep scratches that affect braking efficiency really require immediate disc replacement, otherwise, they may cause noise or even increase braking distance while driving. It's essential to regularly check brake pad thickness and clean the wheel hubs, avoiding sudden stops that accelerate wear, thereby extending the life of the brake discs. Safety comes first, so don't delay if scratches are found—get them diagnosed and repaired at a reliable shop to ensure worry-free driving.
As a car owner who loves my vehicle, I take brake disc scratches seriously. Common causes include brake pad issues or debris getting stuck, leading to surface damage. I recommend first trying light braking to listen for any unusual sounds. For shallow scratches, you can have them polished at a trusted auto repair shop; deep ones require immediate disc replacement without hesitation. To prevent this, I clean around the wheels monthly, avoid driving on muddy or sandy roads, and use high-quality brake pads. During regular maintenance, I also ask the technician to check them. These small habits can prevent major troubles, as brakes are crucial for both the car's and your own safety.
