How to measure the size of driving brake pads? Check the size of your car s brake pads

In general, it is taken down and measured. Measure with a straight ruler. Look at the brake pads.

The thinnest place. Take three different positions of the brake pads and measure them three times. Take the minimum value, which is the thickness of your brake pads. It cannot be less than 2mm, without brake pad backplate.

There is a size scale on the scale bar 1, and the 0 point of the scale is at least 8cm away from the datum 5; There is a measuring foot on the sliding ruler 2. The structure is simple, the cost is cheap, the thickness of the brake pad is measured, the timing of the brake pad replacement is determined, and the driving safety is ensured. Look

The thickness of the new brake pad is generally about that, with the daily friction loss, when the naked eye observes that the thickness of the brake pad is only 1 3 brand new, it is necessary to increase the frequency of inspection, and be ready to replace the new brake pad at any time. There will be small raised signs on both sides of the brake pads, and when the brake pads are level with it (2-3mm), it means that it has reached the limit and must be replaced.

When the thickness is still 1 3 of the original, it should be replaced. In general, if the thickness difference between the two sides of the brake pads on the fixed brake caliper is reached, the thickness difference between the brake pads on the floating brake caliper needs to be replaced.

Supplement] When the following four situations occur, the brake pads should be replaced in time:

1. When the thickness of the brake pad is less than the minimum maintenance standard allowed by the vehicle manufacturer (generally when the thickness is still 1 3).

2. When the wear alarm switch on the brake pad has been alarmed.

3. When the brake pads are contaminated by oil or grease.

4. When the brake pads have abnormal noise when braking.

A new brake pad thickness is up and down, and the thickness will gradually become thinner as the friction continues to be used in use. Professional technicians advocate that when the naked eye observes the thickness of the brake pads has only left the original 1 3 thickness (about up and down, the car owner must add the self-inspection frequency, ready to replace at any time. Due to the design of the wheels, some cars do not have the conditions for visual inspection, and the tires need to be disassembled.

Brake pads need to be replaced.

1. Since the brake pad is a consumable, it will gradually wear out in use, and when it is worn to the limit position, it must be replaced, otherwise it will reduce the braking effect and even cause safety accidents;

2. Under normal driving conditions, the brake pads for every 5000 kilometers of driving should be tested, not only to detect the remaining thickness, but also to detect the wear and tear of the brake pads;

3. Whether the degree of wear on both sides is similar, whether the return position is comfortable, etc., and the abnormal situation must be dealt with immediately.

The thickness of the brake pads is generally around the limit. Strictly speaking, there is no standard and consistent answer to the brake pad thickness standard, because the thickness of the brake pad is different from brand to brand.

When the brake pads are worn to only one-third of their original thickness (i.e. about so), it's time to be replaced. When you arrive, it's the thinnest limit of brake pads. At this time, it must be replaced as soon as possible, otherwise there will be a very big safety hazard.

Therefore, when the brake pads arrive, they should be checked from time to time and ready to be replaced.

In some models, the thickness of the brake pads can be seen through the wheels. However, there are some models where it is difficult to check the thickness of the brake pads without removing the tires. In this case, only the tires can be removed for viewing.

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.

If you feel that the brakes are struggling and the brake pads haven't been replaced in a long time, check them out.

After replacing the brake pads, be sure to step on the brakes a few times to eliminate the gap between the brake pads and the brake disc. Prevent accidents when the first foot brake does not brake.

The thickness of the brake pads should be replaced when the following standards are reached:

1. For the same model of car, someone who drives 7 8w kilometers does not need to change, and someone who drives 4 50,000 kilometers has to change. It has something to do with driving habits. 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.

Professional technicians suggest that when the thickness of the brake pads is observed by the naked eye, there is only 1 3 thickness left (about about 1 3 thickness, the owner should increase the frequency of self-inspection, ready to replace at any time. Of course, due to the design of the wheels, some models do not have the conditions to be viewed by the naked eye, and the tires need to be disassembled to complete;

2. There is 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 replacement of the brake disc, if the thickness of the brake pad has been parallel to this sign, it must be replaced;

3. Therefore, when the thickness of the brake pad is close to this sign, the owner should be ready to observe at any time, but it is difficult to accurately observe by the naked eye without disassembling the tire.

The brake pads have an alarm card, just look at whether you install the alarm card when you change it in 4s, if you install the alarm card, you should replace it immediately when you hear the sound of the brake pad, of course, it is best to replace the alarm card before it comes into contact with the brake disc.

I didn't know until I had to change it after grinding the iron sheet

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1. Visual inspection.

Brake pad thickness measurements can be visually measured, and some cars can see the brake pad thickness through the gap in the wheel hub. The line of sight and the wheel plane at an angle of 15 ° obliquely, look at the gap between the brake pad and the brake disc, you can see the thickness of the brake pad, if the brake pad has worn to one-third of the thickness standard, it is recommended to replace it in time.

2. Professional measuring tools.

Brake pad thickness measurement can be done with professional measuring tools, this measuring tool has a variety of thickness measurements, can give thickness suggestions, can also be judged by feeling, if you feel that the brake pedal is light or feel that the brake is hard, can not brake the car, it may be that the thickness of the brake pad is not enough, resulting in insufficient friction, need to be replaced in time, otherwise it will cause an accident.

3. According to driving habits.

Brake pads should be replaced according to the car environment and driving habits, generally in about 30,000 kilometers to consider replacement, to a professional repair shop for inspection and replacement, it is best to develop the habit of regular inspection and timely maintenance.

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.

To check the size of a car's brake pads, you need to check the vehicle's manual or take an actual measurement.

1.Check the vehicle manual. Some vehicles may have information on the size of the brake pads in their manuals, so that this information can be obtained directly from the manuals.

2.Check your vehicle's braking system.

a.Open the tires on the wheels and check the brake pads. You can determine the type of brake pad by checking the brake components on the outside of the wheels and possibly find sizing information related to them.

In some cases, brake pads may even have labels or markings that indicate information such as the specifications and model of the brake pads.

b.If you can't find the information you need on the outside of the wheel, you need to go inside the wheel. At this point, the vehicle needs to be lifted and the tires and brake mechanism removed, and then the brake pads are measured.

Critical parameters such as the length, width, and thickness of brake pads can be easily measured using tools such as calipers.

The method of checking the thickness of the brake pad is as follows: 1. The standard is generally left and right, and the thickness will be reduced by friction with the braking operation of the car during use. Generally, the critical point of the thickness of the brake pad is about two or three millimeters, and if the thickness of the brake pad is less than 3 millimeters, it must be replaced.

2. You can use the naked eye to see some brake pads that can be seen through the gap in the hub, if the brake pads have worn to one-third of the thickness standard, it is recommended to replace them. However, some models are also due to the design of the wheels, and it is difficult to check the brakes without disassembling the tires, and it is more troublesome to know the thickness of the car blades. 3. There are also some models that will prompt the position of the instrument handbrake light when the brake pad is too thin, and there are also tools to check the thickness of the brake pad, which can better check the thickness of the brake pad.

4. It can also be judged by feeling, if you feel that the brake is difficult, it may be that the thickness of the brake is not enough, the friction is insufficient, and it needs to be replaced in time, otherwise it will cause an accident. The brake pads should be replaced according to the car environment and driving habits, and the replacement cycle should be considered after driving about 40,000 kilometers. When the naked eye observes that the brake pads are thin or the brakes are hard, it is also recommended to replace them in time, and it is best to go to a professional repair shop for inspection and replacement.

The thickness of the brake pads can be checked by the following methods:1Judge whether the brake pads should be replaced by the thickness

The thickness of a brand new brake pad is generally about the same, and the thickness of the brake pad is only 1 u002f3 (about about the same time, it is necessary to observe the thickness change frequently. 2.Tell if the brake pads should be changed by the sound:

Tap the brake and hear a sharper and piercing "Click" sound, indicating that the thickness of the brake pads has been worn below the limit marks on both sides, causing the logos on both sides to directly rub against the brake disc, at this time, the brake pads need to be replaced and the brake disc should be carefully checked. 3.Judge whether the brake pads should be changed by the strength of the brake feeling

If you feel strained on the brakes, it may be that the brake pads have basically lost friction, and the brake pads should be replaced immediately. 4.By judging whether the brake pads should be replaced according to the braking distance analysis

Under normal circumstances, the braking distance of 100km per hour is about 40 meters, and the more 38 meters to 42 meters can be exceeded, the worse the braking, and the farther the braking distance proves that the braking effect of the brake pads is not good. 5.Judge whether the brake pads should be replaced by stepping on the brakes and mistracking

Due to the different degrees of wear and tear of the brake pads, the brake pads need to be replaced immediately.

The thickness of the brake pads is different for different models. But it's all over 5 mm, and if it's less than 5 mm, it's time to change the brake pads.

Automobile brake pads, also known as automobile brake pads, refer to the friction materials fixed on the brake drum or brake disc that rotates with the wheels, and the friction lining and friction lining bear external pressure to produce friction to achieve the purpose of vehicle deceleration.

The common ones are above 10 mm and below 15 mm.