A good brake pad can generally use 30,000 to 40,000 kilometers，Many seabet iocar owners are discovered，The brake pads are less than 20,000 kilometers，There is a situation where wear or brakes are invalid。

Industry insiders said，Current high quality、Inferior brake pads are more than ten times the price difference，Bad -quality brake pads are poorly braked，There are abnormal noises，Unable to deal with complex road conditions。

Speaking of brake pads，Many drivers say，"The brake is not spiritual，Be sure to replace the brake pads at 4S shops or regular auto repair plants "。But some netizens don't take it for granted，I think it is "two iron pupa"，Anyway, it is easy to damage，You can change wherever you go，Quick repair shop is cheap。

Ms. Chen told reporters，Her car changed the brake pads when it was maintained at 20,000 kilometers，"I didn't want to change it at that time，Afraid of 4S shop Meng Me。I send photos of the brake pads to friends，People say that they must change "。Ms. Chen said，Later, she knew that she had a bad habit to drive，Frequent brake，"A friend of me had no intention to follow my car，Seeing my brake lights always light up "。

Different from Ms. Chen is，A brake pad changed by a netizen at a fast repair shop，"I found that there is an abnormal noise in the car after changing it，Discovery to the 4S shop，The newly replaced brake pads have no muffled pads，Taking a lot of money to match "。He spit out "Lost because of small loss"，It is prompted that the owner cannot be cheap for the car repair。

So how do the owners choose a brake pad?

A senior technician of a auto repair told reporters，"We were in the process of repairing vehicles in the past two years，I found a brake pad made of recycled steel back。This kind of inferior brake pads fall off because of the backplane and friction block.，Lead of hidden safety hazards。This may be an illegal operator to reduce costs。”

"The poorly brake pads are not stereotyped poorly，There are abnormal noise such as noise，It is recommended that the owner changing the brake pads does not take it cheap，It must go to the regular repair shop to select the qualified brake pads produced by regular enterprises，To ensure the braking effect and driving safety。"Wei Yongliang said。

Beijing Automobile Decoration Co., Ltd. LuManager told reporters，brake pads are important safety components for automobile braking systems，Good or bad directly affects the brake performance of the car，It is related to the life of the driver and the crew。The disc brakes commonly used in small cars are composed of steel back and lining，Can be divided into semi -metal brake pads、No metal brake pads and ceramic brake pads。Semi -metal brake pads are currently the most commonly used products。

Determine that there are many performance indicators of the brake pads，It mainly has brake performance、Recessing performance、Recovery performance、wear, etc.。Determine the good or bad of a brake pad，Not only depends on its braking performance under normal circumstances，It depends on it at high temperature、Low temperature，Whether complex road conditions such as rain and snow and continuous downhill can maintain good braking performance，To ensure the safety of the driver。

For example, recession，refers to under road conditions such as downhill，When the continuous braking temperature of the brake rises rapidly，The braking capacity of the brake pad will become worse，Increase braking distance。This phenomenon is called "recession"。But the decline rate of high -quality brake pads is small，and the decline of inferior products，Some loss of braking ability at high temperature。So，The owner should choose to choose high -quality brake pads as much as possible，To avoid falling the chain at critical times。

A 9 years of working in the brake film industry、Mr. Li (pseudonym), who is unwilling to disclose his identity, tell reporters，At present, the brake pad industry is good and bad，High -quality、Inferior brake pads are more than ten times the price difference。Qualified products all have test reports from Shaanxi Xianyang Travel Institute。

Mr. Li said，Select the brake pad first depends on the packaging。Whether the owner goes to the 4S shop or the roadside fast repair shop to change the brake pads，You must look at the outer packaging first。Qualified product outer packaging printing specifications，Clear handwriting，Mark the product execution standard，Production license number、friction coefficient，and factory name、Factory address and other information; poor quality packaging，There is no standard execution standard、friction coefficient、seabet appFactory address、Factory name and other information。

"Good brake pads，Except for external packaging，Each brake pad in the box generally has independent packaging，Prevent dirt or wear during transportation。And there must be a product qualification certificate in the packaging。"Mr. Li said。

Mr. Li said，After watching the outer packaging，Just look at the workmanship of the brake pads。Because the brake pads are usually made of a variety of materials，The materials cannot be observed with the naked eye，You can make preliminary judgments from the appearance。

Good brake pads color and bright，The friction layer is neat and smooth，Steel back should be thick。Inferior brake pads The friction surface of the frictional surface is uneven，Steel back，Poor workmanship。Good brake film steel back and friction material sticky tightly，During the use process, it will not fall off。

Mr. Li said，Some brake pads without grooves。If we bring a groove，It depends on whether the groove is regular、Uniform。This gap can cool down、The role of noise reduction，It can also clear the powder produced during the brake。

"Powder for friction during braking，For a long time, it may be attached to the hub，Some car time is long，Black powder on the hub is difficult to clean up。”

There is a muffler on the brake pad，can be reduced、Voice of Voice。The noise during the brake is the friction vibration of friction tablets and the brake disc，Sound waves from friction lining to steel back，It is transmitted from the steel back to the muffle film，Avoid resonance，Can play a role in reducing noise。So the muffled videos on the brake pads are an attachment used to reduce or eliminate noise during the brake。

Mr. Li said，If the owner changes the brake pads at will，It may be replaced with a brake pad without a muck，Make the vehicle from abnormal noise。

Mr. Li said，The thickness of the brake pads is generally around 1.5cm，Continuous rubbing with use，Thickness will gradually become thinner。When observing the thickness of the brake pads, only about 1/3 thickness (about 0.5cm) was left，Just replace it。

There is a protrusion on both sides of the brake pad，This is the thinnest replacement limit of the brake disc，If the thickness of the brake pads has seabet appbeen parallel with this logo，Then it must be replaced。Some brake pads have sensors，rub to a certain degree，The alarm lamp in the car will turn on，The brake pads need to be replaced。

The brake pads have abnormal noise during the brake，For example, the sound of "iron 蹭"，Check the replacement in time。In addition，I feel that the brake becomes soft，I can't help it anymore，To check if you need to change。

For the replaced brake pad，Mr. Li said，The most intuitive thing is to see the braking effect，If it is longer than the previous braking distance，Maybe the quality of the brake pads is poor。If there is abnormal noise in the brake，Also check in time，Look at the installation problem，Or other questions。

Forward! Zhou Zhi!

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