What is the brake pad noise?
For every user, the car brake system plays a vital role in car safety. Good brakes need to have sufficient braking force and comfortable pedal feel.
Every moment of braking is always watched by the driver, and sometimes there are doubts about the condition of the brakes, especially when the brakes make a sound, so which sounds are normal and which ones should be handled?There are several reasons for the brake pad rattling。There are several reasons for the brake pad rattling.
1 new car brake noise
As a new vehicle, the brake pads and brake discs are in a brand new state and have not been broken in, they may make a “silk” or “twitter” sound, which is normal and does not need to be dealt with, and will generally disappear automatically after a few hundred kilometers.
2 There is a foreign body or water film between the brake discs
Rainy days or vehicles through watery roads, brake pads are more wet, low speed when easy to produce whine, this as long as a few feet of brake, friction pads dry after, will disappear; when driving parking, brake pads and brake discs left after temperature, after parking in its surface to form a trace of condensation, the next day when the first drive whine, in addition, brake pads and brake discs between foreign objects, such as sand, small stones and other small particles into the discs. Small particles such as sand, stones, etc. enter between the discs and rub against the surface of the brake discs, which can also cause a silky sound.
3. Rattle when backing up the brakes
The brakes will sound during the reversing process, the general situation is caused by the brake pad friction pattern change, usually in the forward direction brake, when reversing the pattern will be different, in the case of low-speed braking is easy to produce sound, but the braking force is not affected, when such a sound a few more times on the brake can be automatically eliminated.
4 Brake disc rust
The brake disc and brake pads of the vehicle are rusted because of water driving or long time parking, especially after long-term hand braking, which causes the brake disc and brake pads to stick together and cause a strange sound when driving for the first time.
This situation can disappear after a few feet of braking and a while of driving.
It is strictly forbidden to apply antiseptic to the brake disc for antiseptic treatment.
5 Brake pad limit alarm sound
When the brake pads are worn to the limit, the alarm pads will rub against the brake discs and produce a sharp metal friction sound, so be sure to go to the service station for brake pad inspection or replacement in time to avoid scratching the brake discs and brake failure.
6 The effect of lower temperatures cold
Cold start when you step on the brakes appear low frequency sound, because the temperature is low, the chassis suspension part of the rubber parts are relatively hard, some work with the frame caused by the caliper or suspension system vibration, there is a low frequency noise.
This situation is a normal physical phenomenon, driving for a period of time and other vehicles will disappear after the heat ~