APPEARANCE
- Radial cracks, blue colored spots on ventilation frames.
REASONS
- Blue dots indicate rising cracks. This is due to the metallurgical change in the surface material, which leads to hardness and brittleness. This is the overload on the brakes above the normal design limits This is caused by heavy or unusual braking use, such as aggressive driving or carrying heavy loads.
EFFECTS
- Brake loosening, decrease in brake performance, noise, vibration
SOLUTION
- Replace discs, avoid brake system misuse and use engine gears more effectively to help reduce speed.
