How many kilometers does X5 change brake pads, and how often do BMW X5 brake pads be replaced

How to maintain car brake pads.

Brake shoes, commonly known as brake pads, are consumables, which will gradually wear out in use, and must be replaced when worn to the limit position, otherwise it will reduce the effect of braking and even cause safety accidents.

Brake shoes are life-threatening and must be treated with care.

Most cars use the front disc rear drum brake structure, under normal circumstances, the front brake shoe wears relatively quickly, and the rear brake shoe is used for a relatively long time, and the following aspects should be paid attention to in the daily inspection and maintenance:

1.Under normal driving conditions, every 5000 kilometers of the brake shoe is inspected, not only to check the remaining thickness, but also to check the state of the shoe wear, whether the degree of wear on both sides is the same, whether the return is free, etc., and the abnormal situation must be dealt with immediately.

2.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.

3.When replacing, the brake pads provided by the original spare parts should be replaced, only in this way can the braking effect between the brake pads and the brake disc be the best and the wear and tear should be minimal.

4.When replacing the shoes, a special tool must be used to push the brake cylinder back. It cannot be hard pressed back with other crowbars, which can easily cause the brake caliper guide screw to bend and make the brake pads stuck.

5.After replacing the shoe, be sure to step on the brake a few times to eliminate the gap between the shoe and the brake disc, resulting in the first foot without braking, which is prone to accidents.

6.After the brake shoe is replaced, it needs to be run in for 200 kilometers to achieve the best braking effect, and the newly replaced shoe must be driven cautiously.

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.

Need to change. The thickness of a new brake pad is generally around the limit, and the thickness will gradually become thinner as the friction continues to be used in use. When the naked eye observes that the thickness of the brake pad is only 1 3 thick (about about 1 3 thickness, the owner will increase the frequency of self-inspection and be ready to replace it at any time.

The replacement time cycle of brake pads and brake discs is not fixed, generally the first replacement can be in 60,000-70,000 kilometers, and the replacement mileage of other conventional brake pads (check the transaction price|The model is about 30,000 kilometers per trip.

When choosing to replace brake pads, you need to choose good quality, try to choose original parts, of course, the original parts are definitely no problem in quality, but they are also more expensive.

If you replace the brake pads in the repair shop, you need to be very cautious, because some manufacturers do not set up alarm lines on the steel back in order to save costs, and the friction materials are all worn out, and there will be no whistling sound, which is quite dangerous. Therefore, within the allowable range, it is still a well-known brand that is more reliable, and the service life of the brake pads that are generally replaced is also much longer.

It is best not to continue to drive the brake pad with a thickness of 5mm, and replace the brake pad in time. Usually to check whether the brake pads and brake discs 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 5mm, you should consider replacing it.

When the thickness of the brake pads is less, it should be ready to be replaced.

Brake pads also need to be replaced in the following situations:

1. Listen to sounds.

If the brake is tapped, 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, proving that the brake pads have exceeded the limit.

2. Feel the strength.

If the brakes feel very hard, it is possible that the brake pads have basically lost friction, and they must be replaced, otherwise it will cause a serious accident. The following methods can be used to determine whether the brake disc needs to be replaced:

1. The frequency of replacing brake pads. As an object worn together with the brake disc, the wear degree of the brake pads is high, and the wear degree of the brake disc is also high, if the frequency of brake pad replacement is high, it is necessary to check the wear degree of the brake disc in time.

2. Identify whether it needs to be replaced according to the wear and tear. In the process of normal use, the brake disc may be replaced in time due to foreign objects or the quality of the brake disc itself, resulting in deep grooves or uneven wear of the brake disc, so as to avoid safety problems.

3. It can be replaced according to certain rules. For example, when the brake pads are replaced twice, the brake disc is replaced, which is a good method.

4. Replace according to personal driving habits and the quality of the brake disc itself. For example, the brake disc replacement cycle of the main drive wheel is 6-80,000 kilometers, and the life of the driven wheel can reach about 100,000 kilometers.

5. Check the wear and tear of the brake disc. If the brake disc has a deep groove of more than 1 mm, or if the disc surface of the brake disc is unevenly thick, or if there are cracks, it needs to be replaced. Precautions for prolonging the life of brake pads:

1. Avoid sudden braking.

Emergency braking is very damaging to the brake pads, and it is necessary to pay attention to slow braking when driving, or use point brakes to brake, so that the wear and tear of the brake pads is relatively small.

2. Reduce the braking frequency.

When driving, it is necessary to develop a good habit of reducing braking, which can not only reduce the speed of the engine after braking, but then use the brakes to further decelerate or stop, and you can reduce the gear to achieve deceleration when driving.

3. Position the wheels in time.

When the vehicle has problems such as deviation, it is necessary to do four-wheel alignment for the vehicle in time to avoid damage to the tires of the vehicle and excessive wear of the brake pads on one side of the vehicle.

If the brake pad is still 5 mm thin, it generally means that its quality is not high enough, so it can not achieve a safer braking effect, and there will be certain safety hazards in such a vehicle, so it is necessary to replace it in time.

Listen to the sound. When the brake pads and brake discs are working, they will make a noise due to friction. If the noise is mild, it means that they are in normal condition.

If this sound is a harsh noise, it means that the brake pads have been seriously worn, and the car should be inspected and replaced in time.

Look at the thickness. Checking the thickness is the simplest and most direct way to judge the condition of the brake pads, on weekdays, we must pay attention to the thickness of the brake pads, and have an understanding of the condition of the brake pads. Under normal circumstances, the new brake pads are 15 mm thick.

If the brake pads are less than 5 mm thick, the brake pads need to be replaced.

By feeling. As a car owner, you must have a grasp of the driving feeling of the car, if the brake pads are worn and thinned, the feeling of the brakes will be affected, and the foot needs to be stepped deeper to have the previous effect, and the brake pads need to be checked. If you feel that the brakes are not sensitive and cannot be braked, it is even more necessary to check.

Summary. Brake pads are a key component for the safety of people and vehicles, and every team member should be well aware of its importance. It is recommended that everyone maintain the habit of checking the brake pads regularly, and don't bring unnecessary trouble to yourself because of a moment of negligence!

Car brake pads generally need to be replaced with 5 mm left. The replacement time interval for brake pads and discs is not fixed, depending on the road the vehicle is driving and how often and how hard the driver presses the brake pedal.

If the brake pads are still 5mm, they do not need to be replaced, and they must be replaced when there is 2mm left, because it is easy to be dangerous. If you want to replace it, you can.

If the brake pads are still five millimeters, I feel that they need to be replaced, because if the brake pads are five millimeters, they have no effect on forced action, so they must be replaced with new brake pads.

The standard for replacing brake disc wear is about 2 mm, and if the brake disc is worn beyond this standard, it should be considered to be replaced. Generally, check the brake disc every 60,000 kilometers, and if it is found that the wear is more severe, it is necessary to replace the brake disc as soon as possible to avoid safety problems.

If the brake pad is only 5 mm, it needs to be replaced, because the brake pad is too thin will lead to the occurrence of brake failure, so it should be replaced in time, and the brake pad is the safest.

The life of a brake pad is difficult to define in terms of a clear number of kilometers or time.

Brake pads need to be changed in the following situations:

1. Look at the thickness: Usually, the thickness of a new pair of brake pads is about the same, and when the thickness of the brake pads is observed to be less than the naked eye, it is necessary to prepare for replacement. There is also a protruding sign on both sides of each brake pad, the thickness of this sign is about two or three millimeters, which is also the limit of the thinnest brake disc replacement, if the thickness of the brake pad is already parallel to this logo, it must be replaced.

2. Listen to the sound: If the brake is accompanied by the sizzling sound of "iron rubbing iron", 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.

3. Strength: When 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, and they must be replaced at this time, otherwise it will cause serious accidents.

Whether the brake disc is to be replaced, it should be judged by observing the bump marks on the brake disc, if the bump marks on the brake disc have been worn off, then it needs to be replaced, if it is not worn off, it can continue to be used.

If the brake pads are only five millimeters left, I think it is better to replace them in time, although there is no problem with temporary driving, but it cannot guarantee your driving safety.

Hello, glad to answer for you. The brake pads are still 5mm, and it is recommended not to continue to drive, and the brake pads should be replaced in time.

If the brake pad is generally maintained, let the master help to see, and the thickness of 5mm will be replaced. This problem is not big, and you can also take a look at it yourself. There is no specific mileage replacement, it just depends on personal car habits.

If the pads are only one-third thick, in other words 5 mm, then there is no doubt that the pads need to be replaced.

The replacement cycle of BMW X5 brake pads is about 60,000 kilometers, and when the brake pad wear warning light on the dashboard lights up, it means that the brake pads need to be checked and replaced. When the thickness of the brake pad is less than the wear limit, the iron plate on the brake pad will rub against the brake disc to produce metal friction noise, so when the brake is stepped on, you can check the brake pad first.

When the brake pads need to be replaced, it can be judged from three aspects; ​

1.The thickness of the brake pads is measured according to the thickness of the brake pads, and the thickness of a new brake pad is approximately, and its wear limit is. So when your brake pad thickness is close to or has fallen below, then it must be replaced.

Not only that, when the thickness of the brake pad is less than the wear limit, the iron plate on the brake pad will rub against the brake disc to produce metal friction noise, so when the brake is pressed, you can check the brake pad first.

2.It's a very intuitive way to feel the change in braking force, and that's when you apply the brakes. If you always feel very hard when you apply the brakes, or feel that the brakes are not as sensitive as before, you need to press harder than you used to to do to get the desired braking effect.

When you feel that the pedal position becomes lower and the brake pedal travel becomes longer during emergency braking, then your brake pads must be checked as soon as possible.

3.Observe the fault alarm lightWhen the brake pad wear alarm light on the dashboard is on, it means that the brake pad needs to be checked and replaced. However, you need to pay attention to one point, this alarm light is not a brake failure warning light, but a separate fault warning light for brake shoe wear, and this alarm light is not available in all vehicles, so you want to rely on the brake pad wear alarm light to remind yourself to replace the brake pad friends, you must know in advance whether your car has this function.

And even if there is this function, when the alarm light is on, it means that the brake pads have reached the wear limit, and this replacement node is still a little late. The service life of brake pads is also related to the driving habits on weekdays. If you find a problem while driving, you can collect the oil and slow down in advance, and gently apply the brakes at non-emergency moments.

In doing so, it saves fuel and extends the life of the brake pads.

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