Brake discs on Priora: selection, installation, reviews. LADA Priora

Signs

What symptoms can be used to determine that the brake discs on a Priora need to be replaced? The main sign of wear and tear is the behavior of the car. If the working surface of the brake disc is deformed or worn, it will “cling” when you press the pedal. Also, when the pads are activated, a strong grinding noise is possible (not to be confused with the squeaking of the friction material itself). If there is a crack, braking is accompanied by beating against the steering wheel. The friction lining touches the slightest shoulders and other irregularities on the working surface of the disk.

As a result, its material crumbles and you feel increased vibration. It can be transmitted not only to the steering wheel, but throughout the body. Depends on the severity of wear or amount of deformation. In this case, it is recommended to carry out a visual inspection of the element. If there are no visible cracks, remove the wheel and run your finger along the working surface of the disc. If you feel unevenness, this means that the element has overheated and, due to expansion and contraction, has become deformed. It is worth noting that the steering wheel can only wobble when you press the pedal. If this symptom occurs while driving, your wheels may be unbalanced or one of the weights has fallen off. Often these vibrations increase as speed increases.

Why do rear pads wear out rapidly?

Several factors influence the wear rate of the rear pads. In the first place here is the driver’s illiterate work with the brake system. Considering the fact that the Priora is equipped with a fairly powerful engine, most drivers prefer aggressive driving with rapid acceleration and sharp braking. With this type of driving, the operation of the car’s braking system leads to the fact that the rear pads wear out very intensively. Many inexperienced car owners, due to ignorance, practically do not use engine braking.

The second factor is the replacement of the rear pads on the Priora with low-quality spare parts. Questionable manufacturers of cheap elements may use low-quality and sometimes simply unsuitable materials to produce the friction layer of linings. This can not only reduce the manufacturer's recommended replacement schedule, but also render the brake drums unusable. Let's look at the main signs that require urgent replacement of the rear brake pads on a Priora.

Sources

• https://VAZremont.com/zamena-zadnih-perednih-tormoznyih-kolodok/
• https://CarsUp.ru/hodovaya-chast/kak-pomenyat-zadnie-tormoznye-kolodki-na-priore.html
• https://mashintop.ru/to/zamena-zadnih-tormoznyh-kolodok-lada-priora-s-abs-i-bez-abs.html
• https://ladafakt.ru/zamena-zadnih-kolodok-na-priore.html
• https://enginehack.ru/zamena-zadnih-tormoznyh-kolodok/
• https://FB.ru/article/466644/zamena-zadnih-kolodok-na-priore-poshagovaya-instruktsiya-osobennosti-sovetyi

About the groove

Is it wise to repair your brakes? "Priora" is a relatively inexpensive car, but the cost of turning old discs is up to 75 percent of the cost of new elements. In addition, this restoration method is ineffective for serious deformations in the form of cracks and large wear (the thickness of the working surface is less than 6 millimeters). Reviews from motorists say that a smart decision would be to buy a new set of wheels. When old ones clear up, there is a high probability of repeated symptoms. After a couple of thousand kilometers, such a car begins to vibrate again, and the brakes become less informative. Moreover, it makes no difference whether the groove was performed on the removed element or directly on the hub. If you want to be sure of your safety, install new brake discs on your Priora. Which ones are better to choose - we will consider further.

Non-ventilated

These are the simplest brake discs that are installed on the basic configurations of Lada Priora cars. It is believed that this type has an outdated design and is practically not used on modern machines. Foreign manufacturers installed non-ventilated discs back in the 90s of the last century. Starting from the “zeros”, even the budget class was equipped with ventilated elements.

The disk itself is a round blank with a thickness of 10 to 20 millimeters. It is often made by casting - it is one continuous element. More expensive analogues have a collapsible design. They can change the working surface. But their price is several times higher than the cost of brake discs on a Priora of the usual cast type. The range ranges from one and a half to seven thousand rubles. The “budget” niche is occupied by non-ventilated disks due to their simple design.

What front brake discs can be installed on the Lada Priora?

It should be noted that the front brake discs constantly heat up and are subject to greater loads than the rear ones. That is why their replacement is necessary more often than the rear ones. But it is important to familiarize yourself with all the dimensions in advance. Before you make a purchase, you need to decide on your budget. Original disks are usually slightly more expensive than analogues.

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At the same time, it is important to remember that the latter are sometimes in no way inferior in quality to the originals. Some famous brands have the status of official suppliers. Therefore, the quality of the products they supply is satisfactory. The price fluctuates depending on various factors. It is necessary to take into account all the nuances. If the car has ABS, discs are required, which require connecting the corresponding sensors.

The price also varies depending on the brand. Such as TRW and Ferodo will cost slightly more than noname products. The cost of ventilated and conventional ones varies. The latter are suitable for drivers practicing an aggressive driving style. They cool down much faster. Moreover, the pedal will be more responsive. But the cost of such disks is much higher.

Original

Many drivers choose original parts. Moreover, there is a certain logic in this. Since such components are 100% likely to fit. It is only important to study all offers in advance. Counterfeits of original components and parts are often found on sale. There is a hologram on AvtoVAZ boxes; the box itself is made of high-quality cardboard.

Substitutes

Purchasing analogues does not cause problems. It is only necessary not to confuse the article. The minimum cost of such components will be 800 rubles. Having installed such items, it is important for the owner to constantly monitor their condition. This will avoid many difficulties. It is better to replace the disks in advance.

Perforated

These elements have a more complex structure. The design combines two thin metal disks 5 millimeters thick. Between them there are so-called channels through which air flows. Thanks to such ventilation, the operating temperature of the disk is reduced by one and a half to two times. And as we know, when braking, a friction force arises, which is converted into thermal energy. Disks require high-quality heat dissipation.

If it is not there, the metal will overheat. As a result, we get literally crooked disks, and possibly cracked ones. The braking distance is also reduced. Compared to non-ventilated analogues, it is 15 percent lower. In addition, the service life of the brake pads increases, since the friction material no longer operates under critical temperature loads.

Some facts

Initially, perforation appeared on sports cars. The working part of the brake disc was drilled using special equipment. The result was through holes and grooves through which air circulated from the center outward. A few years later, perforation began to be used on ordinary civilian cars. But, despite such popularity, the price of such discs has not decreased at all, since the production technology has remained the same. In addition, high precision work is required. At the slightest discrepancy with the standard, such a disc is rejected and does not go on sale.

About braking efficiency

When the pads come into contact with the disc, gases are formed (boundary layer), which prevent good adhesion of the friction material to the working surface. Thanks to the presence of grooves, they are easily removed. In the case of non-ventilated discs, these gases continue to slide across the metal, preventing the pads from working properly. As a result, the braking distance increases. As we have already said, preformation allows you to reduce its length by 15 percent. 100% adhesion is ensured between the metal of the disc and the working surface of the pad. In some cases, in addition to holes, grooves are used. They have a depth of about two millimeters and are directed towards the rotation of the disk. The grooves clean the working surface well of accumulated dirt, sand and other deposits that have formed there when the car was driven. In the absence of perforation, this dust settles deeply on the surface of the disc. This causes a squeaking sound when braking. The driver cannot understand the cause of the malfunction, especially if the pads have recently been replaced.

When do pads need to be replaced?

Replacement is required if:

• When braking there is an unpleasant squeaking noise.
• There is a lot of oil on the surface of the pads.
• The friction lining moves away from the base.
• The thickness of the pads is less than 1.5 mm.
• Chips and deep grooves appeared on the surface of the linings.

Remove the rubber plug and inspect the pads.
To check, roll the Priora into the inspection hole. We need to find a special hole located on the brake shield. It should be covered with rubber. Remove the plug and inspect the brake pads. You can measure the thickness, which should be at least 1.5 mm. Cracks, scratches, chips and other defects are also visible through the inspection hole.

You can find a more detailed review of the front brake pads on the CS20 company website at the link - https://cs20.ru/articles/stati/perednie-tormoznye-kolodki-kakie-vybrat/. The article describes the technical characteristics and appearance of the pads.

What to choose in the end?

What kind of front brake discs should I put on the Priora? Reviews from motorists agree on one thing - it all depends on the driving style. If you prefer an aggressive style, with sharp acceleration and braking, the presence of perforations and grooves is simply necessary for you. But if the car is used for leisurely driving, there is reason to think about installing non-ventilated discs. A compromise option is to purchase ventilated discs without perforation, but with grooves.

This is the average price range - from 3 to 5 thousand rubles per unit. This way you will be confident that the system is working properly and ensure maximum driving safety by reducing the braking distance by several meters. Plus, if these are alloy wheels, these grooves will give your car more sportiness.

Adjusting the brakes

After replacing parts, it is worth adjusting the handbrake using the adjusting screw, and also bleeding the brakes.
Additionally, inspect the integrity of the mechanism parts, oil seals and seals. If necessary, replace. Before driving on public roads, check the functionality of the system and remember that the car will slow down worse at first, because the pads need to get used to the drum.

Original and fake

Now there are a huge number of fakes on the market, which are sold under the famous brands Zimmerman, ATE, Bosch and Brembo. It is quite easy to distinguish an original from a copy. First of all, this is the thickness of the disk. If it is less than one centimeter, most likely you have a copy in your hands. Reviews from motorists recommend paying attention to the junction of the two parts of the disk. The internal grooves should connect smoothly to the work surface.

If there is a strict 90 degree angle, such discs will simply crack. Well, the last factor is the price. It is two to three times lower than the original. Compare the cost of the same model at different retail outlets. If it is significantly different, and the disc has different weights, one of the stores is selling a fake.

What's next?

First, put the car on the handbrake and put the anti-roll bars back. Next, use a wheel wrench to remove the wheel bolts and jack up the front part. Remove the wheels and unscrew the brake fluid reservoir. Using a vacuum syringe, pump out some of it into a previously prepared container until the level in the tank drops to half. This way we will prevent it from getting on the pads when dismantling them. Next we need a thick minus screwdriver. We install it between the outer brake pad and the caliper and pull back the piston. It is important not to damage it - for this reason, work extremely carefully. Then we take the “13” key in our hands (you can take a horn or ratchet) and unscrew the lower mounting bolt. If there is a locking bracket, turn it with a screwdriver or bend it with a chisel and hammer. Using the “17” key, we tighten the rotary pin.

We lift the bracket, take out the pads, remove the two bolts going to the caliper and use the “7” key to unscrew the disc itself. Then you can install new brake discs on the Priora. Assembly is carried out in reverse order.

Priora with ABS sensor

If you received a Priora with additional options, then before you begin dismantling the rear pads, you must remove the ABS sensor. If you don't do this, you will most likely damage it during repairs. The sensor installed on the brake mechanism is held on by just one screw. It can be unscrewed using an E-8 star socket.

Unscrew the sensor using the ABS coupling head

Adviсe

When replacing a disc, new pads should be installed. This is a required step. Some manufacturers include a pair of new pads when purchasing a disc. Also maintain symmetry. Let's say your disk is cracked and you buy one standard “replacement” one. If you install a new one on only one side, there will be uneven distribution of braking forces and asymmetrical wear. The same goes for the pads. They only change in pairs. Also, when replacing, pay attention to the condition of other parts - caliper boots, guides. If there are any gaps or signs of deformation/wear, replace them. After the brake discs have been successfully installed on the Priora, add fluid to the reservoir and bleed the system. The presence of bubbles in it is unacceptable - braking on such a car becomes ineffective. The liquid simply boils from the compression of air.

Difficulties in selecting parts

Before you begin replacement, you must select a suitable set of pads. There are many options for the Lada Priora on the market. Conventionally, they can be divided into two categories - parts equipped with ABS and those without this system. It is not difficult to understand what type your Lada Priora is - the diagram of cars with an anti-lock braking system includes an ABS sensor and a wire connected to it.

The basic principles of selection are common to the two categories. The product must be well packaged, have protective holograms and quality certificates. When purchasing a whole set with release springs, it is advisable to check them. We often came across sets from China where the spring brackets were turned in the wrong direction.

There is no need to look for how much the cheapest kit for a VAZ will cost. It is better to give preference to original parts or famous analogues. Even at a higher cost, the pads will provide excellent service life and excellent braking dynamics.

Selection for cars with ABS

Below is a list of pad sets with the best price-quality ratio.

Selection for cars without ABS

If your Lada Priora is not equipped with an anti-lock braking system, then you should purchase special pads. The most popular sets are the following.

About the resource

The replacement period for this element directly depends on your driving style. The more often you accelerate and brake, the lower the resource of the node. Factory brake discs installed on Priora can withstand up to two hundred thousand kilometers. But with aggressive driving, this period can be less than one hundred thousand. If possible, brake in gear and switch to neutral in advance before a red traffic light. Use more “rolling” - this will not only preserve the discs and pads (the latter are changed every 25 thousand kilometers), but will also increase the service life of the gearbox. Fuel savings are also significant.

So, we found out how to choose the right brake pads and install them on a Lada Priora car with our own hands.

How to replace front and rear brake discs yourself

Replacing and installing new brake discs is a relatively simple process. But it has some subtleties and features. It is important to study all the nuances. And stock up on all the necessary tools.

Replacing front brake discs

Removing and reinstalling the front brake discs is not difficult. This algorithm includes the main stages:

• the car is raised on a jack or lift, the wheel must be removed;
• then the two caliper bolts are unscrewed so that it can be removed;

• two bolts are unscrewed using a Phillips screwdriver, after which the disk is removed from its seat;
• the new disk is installed and fixed;
• assembly is performed in reverse order.

Installing rear disc brakes

Selecting and installing rear disc brakes is not difficult. If you have no experience, you need to be well prepared. For example, watch a video. The installation process is as follows:

• the old brake mechanism is dismantled;

• a special shield is installed;

• a bearing and the rest of the mechanism are mounted on it and bolted;

• The brake disc is installed in its seat.

Installing disc brakes on the rear wheels can significantly improve handling and reduce braking distance by 1.5-2 times.
It is necessary to carefully consider the modification of the brake mechanisms on the rear axle. Making any mistakes is simply not acceptable. Otherwise, serious problems may arise on the road. It is advisable to purchase brake discs and pads from the same manufacturer. This will avoid installation problems and other difficulties. The composition of the friction linings is no less important. It is advisable to avoid purchasing pads that contain ceramics. Such pads can lead to premature wear of the brake disc.

There were bolts with non-standard star-shaped heads. I had to go to the broom and buy a spanner for it. This type of bolt has a different dimension! I bought it on 13. Be careful, look at your Priora for such a bolt or an old-style caliper.

I found the photo on the Internet, but I didn’t take a photo of mine.

Next we removed the brake disc, fortunately everything came off easily, we didn’t have to worry about anything)

We put on a new one, screwed the caliper back on and put new pads in there

Old pads compared to new ones -

We secured everything back, and did a similar procedure with the other front wheel)

Next came the matter of the drums -

They removed the wheel, removed the drum, removed all the springs and pads, only the brake cylinder remained -

Then we put the new springs back on, inserted all the plates and new pads

The next step was to attach the drum, problems arose with this, it did not want to fit on the pads. We pressed in the brake cylinder and loosened the handbrake as much as possible - it still won’t work.

There were two ways to solve the problem - either saw down the brake pads or the spacer plate. They did this and that, but with difficulty the drum fell into place.

Then they began to do a similar procedure on the other wheel and it became clear that one side of the brake cylinder simply did not work. And the other one is leaking. We decided to immediately change the brake cylinder on the spot, but were unable to unscrew the bolt that disconnects the brake fluid pipe. Tearing off the bolt was also not an option, so we postponed replacing the right brake cylinder until later and put an old brake pad on the non-functioning side.