When your brake pads are worn and new pads are required, you will hear a highpitched warning sound from your front brakes or rear brakes. You may hear this sound come and go or it may occur whenever you depress the brake pedal.
Please remember that some driving conditions or climates may cause a brake squeal when you first apply (or lightly apply) the brakes. This is normal and does not indicate a problem with your brakes.
CAUTION
WARNING - Brake wear
This brake wear warning sound means your vehicle needs service. If you ignore this audible warning, you will eventually lose braking performance, which could lead to a serious accident.
Kia Cee'd JD Service Manual: Components and components location
Components
1. Clutch release fork
2. Clutch cover assembly
3. Clutch disk assembly
4. Clutch release bearing
...
Kia Cee'd JD Service Manual: Knock Sensor (KS) Description and operation
Description
Knocking is a phenomenon characterized by undesirable vibration and noise and
can cause engine damage. Knock Sensor (KS) is installed on the cylinder block
and senses engine knocking.
When knocking occurs, the vibration from the cylinder block is applied as pre ...