A:

Analysis: Scratches on the brake discs are caused by friction particles between the brake pads and the brake discs.These particles may be substances from outside the braking system (road, dust, and water), or from poorly mixed friction materials.

Solution: Please replace the brake pads and brake discs.

A:

Analysis: Deposits of friction material are transferred to the surface of the brake disc.This usually happens if inferior brake pads are installed.

Solution: Install high-quality brake pads, and the selected friction material should be suitable for the brake and the vehicle.

A:

Analysis: Incorrect installation of brake calipers and/or brake pads will cause the angle of each brake pad relative to the brake disc to be inconsistent, and the wear speed of each side will be different.Severe local overheating of the friction contact surface is the cause of blue spots.

Solution: Please check and repair the automatic calipers if necessary.Replace the brake pads and check whether the type and shape of the new brake pads match the application.