A squeel- but many DO NOT have wear indicators so will not make any sound at all until they are gone and they grind tearing up your rotors. It's easy to check them. When car is parked and they are cool, feel them through your wheels holes. If the pad material is thinner than the backing plate its attached to-it's time for new pads.
High pitched squeaking/squealing. like your dragging a knife harshly across a stainless steel sink.
might be the brake pad
Have your brake pads checked. If the squeaking sound stop when you apply the brakes it may be your brake pad wear indicators rubbing the rotors to warn you to have your brake pads replaced. If you ignore it damage will result when the rotors and metal brake pad backing or rivets rub after the brake pad linings are worn away.
If the car is making a squeaking sound or sounds like metal grinding, it is likely that you have a brake pad or brake rotor issue. If this is the case, you need to take it in very soon.
How do you change brake pad on s60
The brake pad wear sensor is on the brake pads. On my 318ti, the sensor is on the left side, on the inboard pad.
Carefully pry pad wear sensor from brake pad. Then insert brake pad wear sensor into cutout in new pad where applicable.
It could be a uneven brake pad due to a warped rotor or it could be a missing spring between the two brake pads that holds them together or a missing noise surpressor between the caliper and the brake pad.
Broken/ disconnected return spring? Worn brake pad? Loose caliper?
A brake pad is the friction surface, replaced as it wears, between the caliper and the rotor.
Most often caused by a lack of brake pad material. When the material gets very low on the pad (almost to the point of having none), a metal tab (attached to the pad) vibrates on the rotor indicating the need of replacement brake pads.
if you are talking about brake as in like fourwheeler brakes or car brakes the rubber part would be called the brake pad