Dust build up on pads/shoes (squeal) Worn pads/shoes causing metal to metal contact (grinding) Suspension fault, movement of faulty component when the brakes are applied (knocking).
Brakes
check cv joints ball joints tierodends
it means your brake pads are worn out and need to be replaced
When you are driving slowly with your foot off the brakes you will hear a scraping noise. The noise will go away when you apply the brakes. What you are hearing is the wear indicators making contact with the rotor surface after the pad lining have worn down to a certain level. Not all brakes uses wear indicators. VBD
it could be a bad wheel bearing.
Numerous possibilities, wheel bearing, brakes, belts, etc.
Check front pads and brake rotors. You might have to change the pads.
did you check your brake pads, to me it sounds like you need new brakes, i imagine that if you have been driving with that noise happening and you didn't replace your brakes your rotors are most likely scored, possibly warped, full of hot spots, and heat cracks
this is usually the indicator that you need new brakes so dont worry just get them replaced problem solved
possible missing anti rattle clip on brakes....had same concern on 02 front brakes
Could be a bad strut or shock No I have disconnected both rear shocks and knocking noise is still there whilst driving. Seems to be coming from rear. When stationary I can bounce rear of car up and down and hear noise with handbrake on but not with handbrake off. Any ideas?
There could be a number of causes. If the car is making the sound whilst stationary it could be a slipping fanbelt, or could be a problem with bearings. Water pump bearings are a common cause of such noise. If the noise is occurring only whilst travelling. It could be wheel bearings or rubbing brakes.