Good day, dear motorists! There is nothing eternal, and it is difficult to disagree with this statement. Especially when it comes to car parts that operate in a constant extreme mode.
It is to the same details that the brake pads of the car belong, which, together with the brake discs, perform the task of ensuring our safety. And the front brake pads experience a particularly large load during braking.
It is the front brake pads that take on the mass of the car, multiplied by the speed, and their task is to quickly and effectively stop this cocktail of various physical forces.
How often to change brake pads
The service life and replacement of the front, as well as, depends on several factors. Some of them are quite capable of being influenced by the driver of the car, and some of these factors do not depend on the driver.
- manufacturer of brake pads. Taking into account the fact that brake pads, like them, are our safety, when choosing them, one cannot be guided only by the price policy. Yes, brand-name brake pads are more expensive, but not more than your health;
- quality and directly depends on the brand of the manufacturer. If you buy them in a company car shop, where you first of all require product certification;
- driving style. This factor is in your hands. Brake pad wear occurs many times faster if you move around the city with an incomprehensible desire to show someone something. Otherwise, why do some drivers, from traffic light to traffic light, try to develop maximum speed, and then apply emergency braking.
For lovers of extreme driving style, the replacement of the front brake pads comes several times faster than specified by the manufacturer.
How to know when to change
Naturally, no one names the exact number of mileage or time in the case of replacing brake pads. But, for each brand of car, the exact parameters of the condition under which they need to be replaced are indicated.
You will find these figures both in the instructions for using brake pads from the manufacturer, and in the manual for operating the car of your model. It is advisable to ensure that the replacement is carried out at the specified thickness of the brake pad.
Replacing the pads, like or, must be carried out on both wheels of the same axle. There is no difficulty in replacing, if you do not know how to change the brake pads, then we will help you with this.
How to change front brake pads
The technology for replacing brake pads is no different for any car model. There are, of course, nuances associated with the design of mechanisms or their types. The caliper differs in design from the standard brake system.
When replacing the front brake pads, as well as the rear ones, do not forget to diagnose the parts, assemblies and mechanisms of the entire brake system. Brake disc diagnostics is a must. Just pick up a caliper and measure its thickness.
In addition to the thickness, visually check for mechanical damage on the surface of the disk and its in-plane geometry.
When buying brake pads, try to choose them so that they are from the same batch. This is important, based on the characteristics of the material of friction linings in the production of different batches of products. The pads of the same batch have less difference in the physical and mechanical properties of the brake lining material.
Equipment and tools for changing brake pads - standard set:
- jack;
- "goats" (lifting support);
- balloon key;
- standard set of locksmith tools: screwdrivers, wrenches, hammer, etc.
Preparing the car to replace the front brake pads. We hang the “front” with a jack on a support, remove the wheel, turn the steering wheel and evaluate the amount of work, while checking the condition of the caliper, discs, the junction of the brake hoses and pipelines.
Technological operations for replacing brake pads:
- remove the brake hose from the mount;
- with the help of a balloon or a mount, we depress the brake piston, do not forget that at this moment it rises. Pay attention to the expansion tank.
- unscrew the bolt securing the caliper bracket, remove the bracket.
- we make a replacement.
- We assemble the brake mechanism in the reverse order.
That, perhaps, is all. The front brake pads have been successfully replaced. Test them right away, but don't be zealous. And remember. That the increased load on the front brake pads requires you to constantly monitor their condition. This is your guarantee.
Good luck with changing your front brake pads, and on your way.
One of the most important consumables for a car is brake pads. And one of those that have to be changed quite often. Of course, not a single automaker will name a clear regulation for replacing pads. AvtoVAZ does not call it either. The front brake pads on the VAZ-2110 on average go from 20 to 40-50 thousand, depending on the temperament and skills of the driver. How to change and which is better to install the front pads on the top ten, let's figure it out right now.
On average, pads need to be changed every 30,000 miles.
To begin with, let's look at a simple technology for replacing pads on a dozen. Anyone can change them, spending half an hour on the strength. For work, we need a standard set of tools, a mount or a powerful screwdriver, rags. Also, perhaps WD-40 penetrating lubricant and guide block lubricant will come in handy. And, of course, new pads. We change them only as a set on the right and left wheels.
wear symptoms
Medium pads will last about 30,000 miles and they wear out three times faster than the rear ones, since the main load during braking falls on them. In no case should you use pads from different sets or varying degrees of wear, we put only a new set, only one manufacturer.
Thickness difference between old and new pads.
Despite the mileage when these symptoms appear, at least check the condition of the pads and discs:
- Squeaks and clanging during braking.
- Vibration during braking.
- Increased stopping distance.
- Large brake pedal travel.
- Uniform impact when braking.
- Traces of dust and chips on the brake mechanisms.
It is these symptoms that will tell us that the resource of the brake pads has been exhausted. With almost 100% certainty, we can say that the pad has worn down to an acceptable thickness. 1.5–2 mm.
Let's start with the replacement.
Replacement algorithm
Since we will disassemble the brake caliper, then we will evaluate the condition of the brake disc, anthers, cuffs, hoses and cylinders.
- We install the car on a flat surface, put wheel chocks under the rear wheels and tighten the handbrake, remove the negative terminal from the battery.
- We tear off the wheel bolts with a balloon wrench.
- Raise the car on a jack and remove the wheel.
We remove the wheel.
- Thoroughly clean the caliper from dust and dirt, look for brake fluid leaks.
We clean the caliper.
- With a mount or a powerful screwdriver, we take the pistons of both working cylinders as far back as possible in order to free the pads.
- Disconnect the pad wear sensor terminal (if any).
Disconnect the pad wear sensor connector.
- We bend the edge of the lock washer with a screwdriver or pliers.
We bend the edge of the lock washer.
- With a key of 13, we unscrew the fastening bolt, holding the guide with a key of 17.
We turn off the lower fixing bolt with a key of 13.
- We take out the fixing bolt and washer.
Remove the bolt and lock washer.
- We take the caliper away from the brake disc, if it does not give in, we try to seat the pistons of the working cylinders deeper.
Pry off the caliper with a screwdriver to open it.
- Take out the old pads.
Remove worn brake pads.
Before installing new pads, we carefully clean the brake mechanism, lubricate the guide pin with high-temperature grease and assemble in the reverse order.
After the replacement, we check the operation of the brakes, the first few tens of kilometers the pads will wear in, so the braking efficiency will not be complete.
Video about replacing the front pads VAZ-2110
Choosing the right pads!
The standard brake pad of the front brakes of dozens has the following parameters:
- length 104.3 mm;
- height 62.1 mm;
- thickness 17.5 mm.
Dimensions of a standard disc pad VAZ-2110.
When choosing pads, it is worth starting not so much from their price as from friction lining material. And this material, in turn, depends on the driving style and preferences of the driver.
Choose the material and category of pads
In short, each of the materials has the following characteristics:
- Semi-metal clutches. The most inexpensive, they are made from a friction mixture, which includes graphite, inorganic fillers and 60–65% crumbs of non-ferrous and ferrous metals. Such pads perfectly remove heat, do not overheat, but strongly erase the brake disc. Noisy and very dusty. Doesn't work well at low temperatures.
- Low metal pads. The same story, but the percentage of metals is reduced to 30–35% . Mainly composed of organic fillers. Softer and less noisy pads.
- organic pads. Consist of glass material, carbon fiber, Kevlar. The metal content does not exceed 12–15% . Very soft and low-noise pads, but at the same time they wear out intensively. But the organic spares the brake disc and has good frictional properties at the initial stage of braking. Not recommended for fans of an aggressive driving style, but a calm, balanced driver will comfortably drive at least 40-50 thousand.
- Ceramic friction linings. The best option for conditions where intensive and frequent braking, high speeds are required. The lining is based on ceramic fiber, rubber and soft non-ferrous metals are included in different proportions. Ceramic pads are equally effective at both low and high temperatures, do not wear out the brake disc much, and at the same time last quite a long time.
In addition to the material pads are distinguished by categories, roughly speaking, by workmanship. There are three of them - conveyor, aftermarket and spare parts market for third countries:
- original conveyor blocks delivered directly to the factory, they meet all possible standards, although judging by the native VAZ-2110 pads, this is not always the case;
- after market- this is a complete copy of the original pads, they cost half as much, but the quality can sometimes be better than that of relatives;
- pads for third country markets they look no different from aftermarket parts, but the quality of materials is an order of magnitude worse and they cost a third cheaper.
We select brands and look at prices
About native desyatochnyh pads speak not too flattering. They are only enough for a break-in, after which the braking efficiency drops noticeably, they begin to creak and vibrate. These are the pads of the domestic factory TIIR with part number 2108 35010 80. Their only plus is that they get conditionally free of charge (along with a new car), so it’s not a pity to throw them away.
Regular pads TIIR.
Budget pads include Ferodo with the number ТAR527B at a price of about 400 rubles. Despite this price, they performed well both in tests and in real life. With godless operation, they can withstand up to 40 thousand mileage, if you do not run into a fake, of which there are quite a few. Pads are in the same price range. Remsa , Dafmi, there is inexpensive Nippon.
Budget brake pads FERODO ТAR527B.
Lucas / TRW can hardly be called budget, they ask for about 800 rubles. Catalog number GDB1446 . They practically do not wear out the brake disc and serve for quite a long time. The best option for urban conditions. Approximately the same amount will cost good pads ATE, and German Girling, they are supplied to the Bavarian conveyors.
Lucas pads.
For 1500 rubles you can buy pads Ferodo Premier series. Excellent quality, premium series of well-known pads. In all indicators and characteristics, they are ahead of the first two groups. Durable, low noise with a high coefficient of friction that is not lost at temperatures around 500 degrees.
The premium category includes pads Bosch , Textar And Delphi, good reviews for premium pads Hankook Frixa and of course, Brembo.
There is a choice, the most important determine in what conditions and how intensively the car is used. Then the pads will not disappoint with the quality and will not upset you with a high price. Strong brakes to all and smooth roads!
Video review of brake pads of the middle price segment
The safety of the driver and passengers depends on the condition of the pads. The car owner must know when to change the brake pads. Of course, the service life of these consumables depends largely on the quality, driving style and conditions. But to maintain braking efficiency, they need to be closely monitored. Let's look at what affects the life of the pads, how to replace them yourself.
Resource brake pads
The wear rate of these elements largely depends on the material from which they are made, as well as on the quality of the friction linings, the condition of the brake system cylinders, and driving style. Experienced mechanics in car services, as well as car enthusiasts, know how long pads can be used. Well, as for the resource, it is approximately determined by the mileage of the car. How much to change the pads can also be found in the documentation for the car. Lining wear also depends on the type of brake. For example, for disk systems, the average resource can be from 50 to 80 thousand kilometers.
Interestingly, for the resource is about the same, although the load on the rear axle is lower. The service life also depends on the conditions in which the car is used, on the driving style, as well as on the experience of the driver. If you accelerate intensively and often brake, then such driving greatly reduces the resource. Often, guys and girls who have just got behind the wheel of their car forget about it and can drive with the handbrake on. This does not have the best effect on the resource of parts of the brake system. Long braking on long descents does not have a very good effect on the state of the pads. How often to change pads? You can replace according to the level of wear. But it is better to carry out the installation as recommended by the manufacturer of a particular car. This procedure should be carried out on a run of 60 thousand kilometers. In practice, it turns out that on this run the pads can be either already worn out or still in normal technical condition.
We diagnose the condition
In service stations, diagnostics are performed by measuring the thickness of the friction lining.
To do this, the car is installed on a flat floor. One of the sides of the car is raised with a jack, or the car is immediately placed on a lift. Then the wheel is dismantled, and with the help of a caliper, the thickness of the pad and disc is measured. If the thickness of the pads is less than 2 mm, then replacement is necessary. Also during the diagnostics, the condition of the disk or drum is checked. If the thickness is less than a certain level, then the part must also be replaced.
Diagnostics without service stations and measuring instruments
To understand when to change the brake pads, you can do without a trip to the service. You can understand that the time has come, and the lining has become unusable, using a visual inspection. By the highlighted marks, you can easily understand that the friction lining is already very worn out. Also, experts recommend monitoring the level of brake fluid in the expansion tank. If it has decreased significantly, or the block has worn out and requires urgent replacement. Do not delay with repairs - this is your safety. You can check when to change the brake pads and in a different way.
To do this, you need to accelerate the car to about 80 km / h, and then perform emergency braking. The beating on the pedals will tell you about the wear of the elements of the brake system. But here the disk is worn out. A signal that the consumables of the brake system need to be replaced soon may be a change in the braking process and the behavior of the pedal. For example, if the car slows down more sharply or slower than usual, then it is worth considering. Characteristic dust with chips may form on the surface of the discs. If, in the process of reducing the speed, the grinding of metal on metal is clearly audible, then it is recommended to pay attention to the thickness of the installed lining and the very presence of the friction layer.
Pad condition monitoring system
Many modern cars have electronic systems.
They take full care of the owner. Special sensors will tell the computer how much to change the brake pads, and he will display this information to the driver. On various models, they may simply indicate that wear is critical and replacement is needed right away.
The device and principle of operation of the sensor
The element is very simple - there is a soft metal core in the overlay. If the level of wear approaches critical, then it becomes the initiator of the circuit. The corresponding signal will be sent to the instrument panel. But even if the sensor is installed, one nuance must be taken into account. It doesn't work correctly every time. Sometimes there are crashes and false positives. This situation is due to the fact that the brakes are often in contact with moisture. The result is corrosion. And because of it, the sensors fail. It is important to know when to change the brake pads by visual inspection - this is much safer.
Before replacement
When installing the pads, it is necessary to diagnose the condition of all mechanisms and components in the system.
Be sure to check the condition of the brake disc. It is enough to measure its thickness with a caliper. It will also not be superfluous to make sure that there are no damages on the surface of the disk, and the element itself is not deformed.
Replacement process
To change the pads at the front, you will need a jack or any support with a lifting function. You also need a wheel wrench and a set of tools. Next - they hang out the front of the car, dismantle the wheel from the right side, take out the brake hose. Then press the piston with a balloon wrench. Do not forget that this will increase the level of the brake fluid. It is necessary to monitor the expansion tank.
How to change rear brake pads
Everything is not complicated here - the algorithm is almost the same for different models and brands of cars. The car is raised with a jack and the desired wheel is dismantled. Then the pins are unscrewed, the drum is dismantled from the hub. This is best done by tapping the drum with a hammer.
Next, the spring is disengaged from the shoe, and the first step is to remove the upper spring. Only after that the bottom. Then remove the front block and the spacer bar along with it. Next, removing the clamping spring from the rear, lower it. After that, the block lever is removed from the hole for the tip. Then the cotter pin is pulled out of the hole, the washer and finger are removed. The next step is to install new pads. The mechanism is assembled in the reverse order. To mount the pressure spring and pads, use the lower spring. She clings to the hook. Then the spring is pulled with a screwdriver and its hook is inserted into the hole on the block. The pistons are moved to the center of the cylinder by bringing the front and rear linings together with mounting blades. Here's how to change the rear pads - it's really easy. Even beginners can handle it.
The brake system is one of those that is used more often than others, and therefore, even at the design stage, it is given the closest attention. Manufacturers do their best to make it last as long as possible. But still, there comes a time when the brake pads need to be replaced. The wear rate depends on many factors: the type of gearbox, operating conditions, manufacturer, driving style, etc. The main thing is to remember that in no case should you hesitate. Not only your own life depends on it, but also the lives of those around you.
When to change?
Before you ask yourself how to replace or rear, you should determine for sure that this moment has come. How to do it? Yes, very simple. As a rule, they are equipped with a special wear sensor that starts to emit a nasty metallic screech when braking, which is almost impossible not to hear. In any case, it is necessary to carry out a periodic visual inspection of the brake pads. If their thickness has become less than 3 mm, and there is no screeching, you can safely proceed with the replacement.
Which ones to choose?
Before replacing brake pads, you need to decide on their choice. It is advisable to buy original parts, choosing them from special catalogs depending on the brand of car, year of manufacture, body type, etc., or purchase goods from well-known manufacturers. Otherwise, you can easily run into a fake.
Occasionally. It is this temporary concept that can be applied when an answer is required to the question of how much to change the brake pads. But, technology does not tolerate an approximate time frame. Some parts and technical fluids of a car have certain time or operational limits, for example, it is recommended to carry out in 1-3 years or 30-40 thousand km. run.
How to change brake pads
With regards to such an important detail as brake pads, timely diagnostics will tell you when to change them. Carried out by you yourself, it is not difficult. Actually, as an independent replacement of brake pads. Replacing the pads with your own hands will always help you to produce Instructions for replacing brake pads, which now exists for any car model. And, even if you don’t have it, then having studied the general ones, you will cope with this task.
Changing brake pads requires certain preparatory procedures that will ensure convenient and high-quality work for dismantling and mounting pads.
Tools and equipment
- Standard wrench set for your car
- Jack
- Lifting support ("goats")
- Hammer
- C-clamp or wheel wrench
Car preparation
- We hang the car with a jack and support. About the observance of security measures, probably, it will be superfluous to talk. These are your hands and fingers. This is your health.
- We remove the wheel, and the front of work appears to us.
- We turn the steering wheel so that it is convenient to get close to the brake mechanism
Direct replacement of brake pads
Before proceeding with the dismantling of the brake pad, swipe the protective cover of the caliper. Depending on the results of the diagnosis of the brake disc, make a decision.
- With the help of the reverse spade-shaped part of the balonnik, we squeeze the piston of the brake caliper. Gently insert the lever between the brake disc and pad. Please note that the level of brake fluid in the reservoir will rise at this point. Take steps to prevent spillage of TJ.
- We bend the edge of the stopper of the bolt securing the brake caliper bracket to the guide pin. Don't forget the brake hose. It must be removed from the bracket in which it is fixed.
- We unscrew the bolt securing the bracket, and fold the brake caliper down.
- We also produce here. If the old pads have uneven wear, then it is necessary to remove the protective rubber corrugations of the guide pins, rinse in gasoline and fill with graphite grease.
- After carrying out these activities, the installation of brake pads is carried out. New pads are highly recommended to be purchased from a store from the same production batch. The marking on the packaging will tell you about it. Thus, there will be no difference in the physical and mechanical properties of the pads.
- We throw on the brake caliper and carry out the installation work in the reverse order.
