How often to change the brake pads of the front 4 rear 4 cars

Brake pads are not fixed how often to change the statement, it depends on the driving road conditions and driving habits, these habits will affect the use of brake pads, if you can grasp it well, you will find that many times there is no need to step on the brakes, a pair of brake pads are used well, can reach 100,000 kilometers.

So, when you need to replace the brake pads, you can check them regularly through the following items, and if you meet the conditions, you have to replace them immediately.

1. Check the thickness of the brake pads.

Check whether the brake pads are thin, you can use a small flashlight to observe and check, when the inspection finds that the black friction material of the brake pads is almost worn out, and the thickness is less than 5 mm, you should consider replacing it.

2. The sound of brakes.

If in the process of daily driving, the brake hears a harsh metal whistling sound, at this time you should pay attention, this is the alarm iron plate on the brake pad has begun to wear out the brake disc, so there will be this kind of sharp metal sound.

3. Braking strength.

When driving on the road and stepping on the brakes, if you feel very hard, there is always a soft feeling, often need to step on the brakes deeper to achieve the previous braking effect, when taking emergency braking, you will obviously feel that the pedal position is low, then it may be that the brake pads have basically lost friction, at this time must be replaced, otherwise it will cause serious accidents.

In addition, the reduction of braking effect will lead to an increase in brake fluid consumption, so it is important to check the condition of brake fluid when replacing brake pads.

If the brake pad has an induction line, a red word "Please check the brake pad" will appear in the alarm. Then there is an icon, which is a circle, surrounded by several dotted brackets, when the warning light is lit up, it is quite dangerous, because this warning system has a direct sense of the thickness of the brake pads, and some are in the brake pads have been completely worn out, and the brake fluid is therefore extremely reduced, so that the warning lights will be lit.

The easiest way is to look at the tips on the dashboard, when the brake pad indicator light is always on, you need to replace the brake pads in time. In addition, we can usually observe the thickness of the brake pads. Usually, a new pair of brake pads is about the same thickness, and if your brake pads are less thick, they need to be replaced.

If there is an abnormal noise when braking, it may be that the alarm pads on the brake pads rub against the brake disc, and the owner also needs to replace the brake pads in time, after all, safety first.

There is no definite statement on this, and the wear and tear of brake pads varies from car to car, with different driving habits and road conditions.

Generally, the replacement frequency of automobile brake pads is about 30,000, if the brakes are not too ruthless, the brake pads can run tens of thousands of kilometers more, basically 30,000 kilometers to check, if the brake pads are not very dangerous!

Nowadays, cars basically have brake pad warning lights, if the brake pads are thin, the instrument lights will alarm! If there is no alarm light in the low-end model, the disc brake pads can see the thickness of the friction block in the gap of the wheel, and if the shoe is almost there, it will be replaced!

The brake pads will wear out faster than the cars on the highway. Because the car that often drives in the city often has to stop and go, and the brakes will be used a lot. It may take dozens of kilometers to slow down or stop when taking the road, and there are relatively few opportunities to use the brakes.

4. Cars with large load capacity have large brake pad loss. In the case of deceleration and braking at the same speed, the inertia of the heavy car is large, and the force of brake pad friction is large, so the wear is large.

Generally, a red word will appear in the alarm "Please check the brake pads". Then there's an icon, which is a circle, surrounded by a few dotted brackets. Generally, when it comes out, it means that it is close to the limit and needs to be replaced immediately.

It depends on the degree of wear and tear of the brake pads, and the wear and tear of the front and rear wheels are not the same, and there is no need to replace four at one time.

When the friction pads are worn to the limit, the brake warning light on the instrument panel will automatically illuminate. At this time, you should replace the brake pads as soon as possible.

The life of the brake pads.

It is difficult to define in terms of clear kilometers and time, as it depends on each person's driving habits and driving conditions. However, usually the service life of brake pads is about 30,000 kilometers, and if used well, some can even reach 100,000 kilometers. Generally, the thickness of new brake pads is about the same, and they will be constantly thinner by friction during use.

If you can see that the black friction material of the brake pads is almost worn out, and only one-third of the thickness (about 5 mm) remains, it is time to consider replacing it. If you hear a "sizzling" sound when you tap the brakes, similar to the sound of iron rubbing iron, you need to replace the brake pads in time. Because the brake pads are too thin, the limit markings on both sides have directly rubbed against the brake discs.

It needs to be replaced according to the condition of the vehicle.

Brake shoes are generally composed of two parts: iron lining plate and friction material, and you must not wait for the friction material part to wear out before replacing the shoes. For example, the front brake shoes of the Jetta have a thickness of 14 mm, while the limit thickness of the replacement is 7 mm, including more than 3 mm of iron lining and nearly 4 mm of friction material.

Some vehicles have a brake shoe alarm function, once the wear limit is reached, the instrument will alarm to prompt the shoe to be replaced. The shoes that have reached the limit of use must be replaced, even if they can be used for a period of time, it will reduce the effect of braking and affect the safety of driving.

The brake pads do not need to be replaced before and after, and the front wheels will wear out faster than the rear wheels normally, because the front wheels are the driving wheels, and the engine and gearbox are in the front of the vehicle, and the loss of all brake pads will be a little faster. Generally, the thickness of the brake pad is less than 3mm, and it needs to be replaced.

It depends on your usage. It is best to insist on maintenance every 5000 kilometers, and the mechanic will help you replace it according to the use of your brake pads when doing maintenance. You can't count by time, you can count by the number of kilometers you run.

This depends on your use and the situation of stepping on the brakes, not that you must replace them all at once, you can replace the front and rear brake pads. Normal driving 2-30,000 need to change the brake pads, if the use is good, more can be, the brake alarm must be replaced.

Brake pads need to be changed once for 3 to 60,000 kilometers. In the braking system of a vehicle, the brake pads are the most important object, and the quality of the brakes is determined by the brake pads.

Generally, if there is a distance of more than 10,000-30,000 kilometers, the brake pads need to be replaced. However, if you hear a grinding sound from the wheels, you should replace the brake pads, regardless of the mileage.

How to see if the brake pads should be changed:

1. Look at the thickness of the brake padsWhen the thickness of the brake pads becomes very thin, the braking performance will drop significantly, affecting driving safety. Generally, the thickness of the new brake pads is about the same, and when the brake pads are worn to the point that they are left, you have to increase the frequency of self-inspection. When the brake pads are worn to only when you must replace them in time, this is the limit of the thinnest replacement of the brake disc, don't drag, accidents occur in minutes.

2. The driving computer prompts the replacement of the brake warning light on the dashboard of the general car, and when the warning light is on, it reminds you to check the brake pads, but the warning light indicates that it has reached the limit of replacement and must be checked immediately. All cars have this warning system, but some directly sense the thickness of the brake pads, and some are completely worn out, and the extreme drop in brake fluid will make the warning lights illuminate.

3. Listen to the sound of the brake disc is mostly iron, especially after parking for a long time, especially in rainy days, it is easy to appear rust, at this time, stepping on the brake will be accompanied by a slight sound, this sound will disappear after driving for a period of time after stepping on the brake. However, if it does not improve after a period of time, the brake pads must be replaced immediately. Because the limit markings on both sides of the brake pads have directly rubbed against the brake disc, it proves that the brake pads have exceeded the limit.

And in this case, the brake pads should be replaced at the same time with the inspection of the brake disc, when this sound often the brake disc has been damaged, even if the new brake pad is replaced, the sound can not be eliminated, and the brake disc needs to be replaced in serious cases.

4. Brake response and stroke When the brake pads become thinner, the brake response of the car will also become sluggish, and we need to step on the brakes deeper and heavier to achieve the previous braking effect. When you find that the braking effect is significantly weakened in the first half of the brake, the brakes become softer, and you can't brake a little, you need to check whether the brake pads need to be replaced.

In fact, under normal circumstances, it is not necessary to change them together.

The degree of wear and service life of the front and rear brake pads is not the same in many cases, under normal driving conditions, the braking force of the front brake pads will be relatively large, and the degree of wear is often greater, and the service life is shorter, generally about 3-50,000 kilometers need to be replaced; The rear brake pads bear less braking force, and they can be used longer, generally 6-100,000 kilometers before they need to be replaced.

When replacing, the coaxial ones must be together, so that the braking force on both sides is uniform. If the front and rear brake pads reach a certain level of wear, they can also be replaced together.

Brake pads are not the same according to different models, different materials and different brands, **generally between 100-300 yuan, and it generally takes about 650-800 yuan to change a set of four brake pads, and the better ones are more expensive.

Replacing the brake pads requires disassembling the tires, which is time-consuming and labor-intensive, it is recommended to replace them in the store, of course, you need to pay a certain fee, generally about 50-100 yuan of working hours, including the replacement of brake pads and the filling of brake fluid. After replacing the brake pads, it needs to be run-in, about 200 kilometers, and only after the run-in period can the best braking effect be achieved.

This is generally not required, unless you are a four-wheel drive, but generally in front-wheel drive, it may be enough to replace the front brake pads first.

It does not need to be replaced completely, and it is generally a set of front and rear wheels.

This generally depends on the specific situation of the vehicle, and it is generally recommended to replace it once when it is 4-6w kilometers.

Yes. Generally, the brake pads (shoes) must be replaced at the same time as the front axle or rear axle, that is to say, the left and right 4 pieces of the front brake pads (shoes) must be replaced at the same time, and the left and right 4 pieces of the rear brake pads (shoes) must be replaced at the same time.

Determine if the brake pads need to be replaced:

1. Look at the thickness.

The easiest way is to look at the prompt of the dashboard, when the brake pad indicator light is always on, you need to replace the brake pads in time, the thickness of a new pair of brake pads is around, and when the thickness of the brake pads is less, you should consider replacing it.

2. Listen to the sound.

Measurement is the safest way to do this, but there are some signs that can also indicate the degree of wear of the brake pads. When you hear a creaking metal grinding sound when you tap the brakes, it is possible that the brake pads have exceeded the use limit, so be sure to check them as soon as possible.

3. Feel the strength.

When stepping on the brake pedal, you need to step deeper to achieve the original braking effect, and the braking effect in the first half is significantly weakened.

If we often drive in congested urban areas and stop and go from time to time, then your car needs to replace the brake pads at about 30,000 kilometers. However, if you are a high-speed, urban and suburban road driver, and you are an old driver, rarely brake sharply, and rarely brake in unnecessary situations, then such brake pads have a long life, and generally 50,000 kilometers can be replaced. If you add to that very good maintenance, then it can even take 100,000 kilometers to need to be replaced.

At the same time, many mid-to-high-end vehicles are also equipped with brake pad alarms, if the brake pads need to be replaced, then the instrument panel will prompt the words "please replace the brake pads", and the indicator light will be lit.

Hello, this is for sure, he is a set of four pieces in front and a set of four in the back, if it is replaced, it is replaced together in front and replaced in the back. Hope we can help you. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

The four pieces of the front wheels are replaced in a set, and the four pieces of the rear wheels are replaced in a set.