Replacing brake fluid on a Toyota Corolla

Replacing brake fluid for Toyota Corolla (every cloud has a silver lining!) — DRIVE2

When replacing the boot (oil seal) of the rear brake piston (cylinder), on the advice of “experienced” people, it was necessary to pump the brake fluid.
As they say, suddenly air got in! Previously, when buying a “running” car, I understood that the mileage was not low. I have no faith in the speedometer))) I changed consumables, even sometimes antifreeze.

However, my hands did not reach the brake fluid. During the operation of the car, the brakes did not fail. Theoretically, I understood that it wouldn’t hurt to change the brake fluid. But on average, over the 3 years of operation of each car, the hands did not reach.

“Car owners” often believe that the brake fluid in their car is eternal and is filled once and for all, or they are simply too lazy to carry out the scheduled replacement of brake fluid provided by the manufacturer.

I was stupidly lazy((((( I have a Chinese device and when testing it, it always indicated that the brake was acceptable (on the verge) of operation. The device has been tested and works correctly.

On Aliexpress 218 rubles

In addition, according to the manual, the brake fluid is replaced after 40,000 km or once every 2 years

Zoom

Manual

Zoom

According to the DOT 4 manual

The first choice was the brand of brake fluid.
To do this, I turned to the Internet. After looking at various ratings of domestic and imported brake fluids, I first decided to contact a domestic manufacturer. I was satisfied with the price and quality. You can read the ratings in more detail at the following link: www.oil-club.

ru/forum/top…j-zhidkosti-iz-zhurnalov/
vint7
www.expertcen.ru/article/…a-tormoznaya-jidkost.html
vyboroved.ru/avtomoto/973…-tormoznye-zhidkosti.html I took 4 just in case of fire bottle of about 450 grams and began to change.

However, not everything is so simple! As it turned out from the Internet and YouTube, on cars with manual, automatic and CVT, the brake fluid changes differently. I'm just quoting Murzilka. What I read is what I write. Allegedly, even on automatic machines, people change in different ways. Initially, the replacement system is the same for everyone, i.e. 1.

The bleeder fitting is closed (twisted to the max), a tube is put on it, preferably transparent, the second end of the tube is lowered into a bleeder container (can, bottle, etc.), in which a little brake fluid is poured, and the end of the tube should be exactly in liquid.2.

The assistant presses the brake pedal all the way down several times, on the last press holds it in the pressed position and says to the performer: “I’m holding it.”3. The performer releases (unscrews slightly) the fitting, liquid under pressure flows out of it through the tube into the container (and it is necessary to ensure that the end of the tube is always in the liquid).

At the same time, the assistant's brake pedal lowers closer to the floor, but he continues to keep it pressed.4. The performer closes (tightens) the fitting and says to the assistant: “Let go.” The assistant releases the brake pedal.

Then, in this way, the complete pumping of the circuit continues. During bleeding, it is necessary to monitor the level of brake fluid in the expansion tank and add it in a timely manner. This method prevents air from entering the system.

The performer is the one who operates the pumping fittings.
An assistant is the one who operates the brake pedal and monitors the level of brake fluid in the expansion tank.

The hose needs to be transparent so that air bubbles and the degree of contamination of the fuel fluid can be seen

The first difference on an automatic with ABS is that it can be pumped with the engine turned off and with the engine running! Who is good at what. The second difference is that everyone pumps along different contours (in different directions). I did not disconnect anything and did this: a) Left front brake b) Right rear brake c) Right front brake d) Left rear brake

automn.ru/toyota-corolla/toyota-25515-10.html

Bottom line. Slowly it took about 1.5 hours (mainly due to removing the wheels). The old brake fluid was cloudy and a little dirty. I spent 4 bottles of 200 rubles each to replace it. It could have been three, but I downloaded it from the heart))))) Everything is fine and everything works. The car ran through the summer, the response from the brake pedal is excellent. Winter came, until frosts dropped above -18. All OK.

Source: https://www.drive2.com/b/489578169184027371/

Toyota Corolla Forum

Toyota Corolla maintenance reports, questions, problems and solutions.

48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

Post by 48RONIN » 10 Feb 2013, 01:11

The topic proposes to discuss the issues of replacing and using car brake fluid. Discuss options for using different types, brands and share your experience related to this vehicle maintenance operation.

SMERSH Honorary Toyota Driver Messages: 865 Registered: Jan 22, 2013, 2:15 pm Location: Omsk Thanked: 1 time

Post by SMERSH » February 10, 2013, 01:14

I changed it before last winter at OD, because...

We have a common clutch and brake circuit, so I didn’t take any risks and paid 400 rubles for a replacement!
I changed it to DOT 5.1, because what was filled there by default was very dull in the cold! One whole, not like there are two reservoirs in the basin, one for the clutch, one for the brakes, here it’s all one! I know that it changes to 40 thousand, but I changed it to 20 due to freezing in winter!

It tanns, but now the tanning line has shifted and it doesn’t tan as much!

48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

Post by 48RONIN » 10 Feb 2013, 01:17

There is one reservoir for brakes and clutch.

Look carefully from the end of the GTZ there is a black hose with the same fluid for the clutch cylinder in the pedal assembly, then under pressure (with the pedal pressed) through a metal tube to the working cylinder connected to the clutch fork, by the way, there is a fitting for bleeding the clutch on it (its you can see by opening the hood and looking between the block and the radiator in the area of the clutch basket).

It turns out that you can only replace the fluid for the brakes and clutch at the same time and pump everything separately.

They have special equipment, they will screw into the reservoir of the GTZ-ra (brake master cylinder), remove the air, creating the necessary pressure with new fluid and open the fittings on the working brake cylinders of the wheels one by one in the correct order until the new fluid completely displaces the old one, after which they will open the same fitting on the clutch slave cylinder, removing any remaining old fluid.

Perhaps the clutch is pumped first, then the brakes.
And additional pumping of systems for modern equipment for replacing operating fluids is usually not necessary. Something like that. I absolutely agree with SMERSH that it’s easier to do this with OD. PS rinat ravilovich we discussed somewhere on the forum and there was someone’s correct recommendation on selecting the type of new brake, pay attention this is important.48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Place location: Lipetsk Thanked: 39 times Thanked: 65 times

Post by 48RONIN » 10 Feb 2013, 01:18

All brake fluids except DOT 5 use polyethylene glycol in combination with boric acid polyesters as a base, while DOT 5 uses silicone as a base. DOT 3, DOT 4 and DOT 5 brake fluids.

1 have the same base and can interchange each other without any problems, at least within the same manufacturer. There is also a separate class of DOT 5 liquids.

1/ABS, designed specifically for cars with anti-lock wheels, which contains both glycol and silicone compounds, making this fluid incompatible with any other. When mixing glycol based fluids (DOT 3, DOT 4 or DOT 5.

1) with silicone-based DOT 5 fluid, a chemical reaction occurs, which results in a composition that does not meet any brake fluid requirements and is aggressive towards the seal material.

Replacing glycol brake fluid with silicone is possible, but this requires first cleaning and thoroughly drying the entire brake system of old brake fluid. So before deciding on any replacement, you need to carefully weigh everything and take into account what I wrote above.

KarpModerator Messages: 6287 Registered: 07 Jan 2013, 14:28 Car: Rav4, AWD, 14, comfort, 20996000 km., manual shift rolled: Corolla 08, comfort, 1G3, 100000 km Corolla 11, elegance, 1G3, 110000 km

manual switches.

Location: 51 RUS Thanked: 528 times Thanked: 132 times

Post by Karp » 10 Feb 2013, 01:23

When replacing the front pads, we poured this jar in, the remainder in it was a glass. 0.75 liters – 08823-80011

– BRAKE FLUID > REPLACEMENT

48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

Read also: The best cars in the world

Post by 48RONIN » 10 Feb 2013, 01:29

The old one will go away on its own, the new one will replace it, and it is important that the level in the reservoir is always above the minimum. For convenience, before the first pumping, it is necessary to “remove” the old brake fluid from the reservoir to the minimum.

First by color, the first one that will be downloaded will be “gray”, then two or three downloads on a new one and you can stop bleeding this cylinder and so on with each wheel. By the way, when replacing the brake fluid, it would be useful to bleed the clutch slave cylinder.

the manual rules page 242, Maintenance schedule: - every 10 thousand - inspection or 1 time in 6 months - every 40 thousand - replacement or every 24 months = 2 years * almost the same requirements for the domestic automobile industry, it is believed that two years is the maximum period for which the brake fluid will be saturated with moisture.

In general, it is useful to bleed the “dirty” brake fluid from the working cavity of the brake cylinders once a year through each cylinder by pumping two or three times.

48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

Post by 48RONIN » 10 Feb 2013, 01:34

When carrying out the replacement, the OD indicated 0.75 l in the work order, i.e. one iron can of DOT4 Toyota.SMERSH Honorary Toyota Messages: 865 Registered: 22 Jan 2013, 14:15 Location: Omsk Thanked: 1 time

Post by SMERSH » February 10, 2013, 01:34

I’ll add my 5 kopecks! Due to the fact that in winter at minus about -30 the clutch and brake freeze and the pedals become “wobbly”, it was decided to change it to 5.1 at 20 thousand (according to the regulations at 40). After the replacement it became “better”, but the desired effect was not felt.

Now in the spring, when I was undergoing maintenance 60, I made a scheduled brake replacement (changed after 40 or 2 years), I was present during the replacement at the dealer, they change it in the old-fashioned way by draining the old one from each brake cylinder.

The point is, when I told the mechanic that my clutch cylinder would also need to be replaced - to which he said no, I said, what about the reservoir! He says there is only one reservoir, but if you don’t drain the clutch cylinder with a specialist, the fluid itself won’t be replaced there.

I then tell me and there it is necessary! He didn’t mind and at the same time, under the hood from the clutch cylinder - he also drained the old one before replacing it with a new one! And then I realized that the last time when replacing it, they naturally did not displace it from the clutch cylinder. I don’t know how the device will be. Now, by analogy, I have 5.1 in the clutch, it will be cold, at least -25 – 30 it will be clear!

The entire replacement takes 1 liter, I took 5.1 Toyota for 273 re on existential.

ALEKS-2Moderator Messages: 925 Registered: 16 Jan 2013, 18:32 Car: November 2007. red.MMT-1.6 Location: Veliky Novgorod Thanked: 35 times Thanked: 34 times

Post by ALEKS-2 » 10 Feb 2013, 01:38

It's time to change the brake fluid, which one is better?
Toyota 08823-80011 Brake fluid dot 4, “BRAKE FLUID”, 0.75 l. RUR 326.49 (recommended by the manual) Or

Toyota 08823-80004 Brake fluid dot 5.1, “BRAKE FLUID”, 1 l. RUB 364.28 (new generation, synthetic based

November 2007
MMT.red TechdocmytoyotaClub Archivist Messages: 251 Registered: Jan 26, 2013, 10:13 pm Thanked: 6 times

#10

Post by mytoyota » 10 Feb 2013, 01:41

48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

#11

Post by 48RONIN » 10 Feb 2013, 01:46

This is a common system with a brake, a tank “one for two”, when pumping, if without special equipment, then according to the principle of brakes, only the clutch pedal does not need to be pumped, you slightly open the fitting on the clutch working cylinder and smoothly press the clutch pedal to the floor, without releasing it you tighten and etc. Until the fresh stuff drips.

TechDoc: CLUTCH SLAVE CYLINDER.ALEKS-2Moderator Messages: 925 Registered: Jan 16, 2013, 6:32 pm Car: November 2007. red.MMT-1.

6 Location: Veliky Novgorod Thanked: 35 times Thanked: 34 times

#12

Post by ALEKS-2 » 10 Feb 2013, 01:51

Front caliper fittings: ring wrench 8, rear wrench 10.

Renat I’m a robot, there’s no clutch cylinder, but I’ll try to help as best I can: pardon: A lift is not needed. The fitting is indicated by a red arrow, the clutch cylinder should be located somewhere on the box.

And HERE, from point 3 (third point), is the procedure for bleeding the clutch.
There is one brake fluid reservoir for the brakes and the clutch. So you will have to change it here and there, if you have already replaced the brakes, then just top up and bleed the clutch as indicated in the link to TECHDOC. November 2007. MMT.

red
Techdoc48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

#14

Post by 48RONIN » Feb 13, 2013, 11:42 pm

GanZ, all questions are answered in the topic above, here is the whole Maytoyota experience. One can is enough, factory filling DOT4, then choose.48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

#16

Post by 48RONIN » 19 Feb 2013, 20:06

It’s difficult for me to recommend anything from another manufacturer, and there’s not much information on the forum, but that jar from Toyota is a completely normal option, at least compatible with factory filling without problems.

I wouldn’t take it from OD, here in terms of the price tag the online stores we know rule the roost, but if replacements are under warranty from OD, then the only thing I would insist on is using brake fluid from just such a bottle. I don’t trust OD if they use large containers, be it oil or brake fluid.

GanZHonorary Kingkeeper Messages: 58 Registered: 07 Jan 2013, 21:06

#17

Post by GanZ » 19 Feb 2013, 20:14

What I don’t understand is, is there really a need to replace the brake fluid at 40,000 km? Isn't it too early for maintenance? I drive much longer and don’t notice any shortcomings in the brakes…

manual switches.

Location: 51 RUS Thanked: 528 times Thanked: 132 times

#18

Post by Karp » 19 Feb 2013, 20:16

If in terms of the price tag, then you need to google it... sometimes OD has a cheaper price tag for consumables than in online stores.

I changed it on the first one, but not on the current one.

48RONINModerator Messages: 2629 Registered: 07 Jan 2013, 17:42 Car: May 2007
1.6 manual transmission 17 Location: Lipetsk Thanked: 39 times Thanked: 65 times

#19

Post by 48RONIN » 19 Feb 2013, 21:13

As for the cheap price tag from OD, this is again only in the “barrel” version; commensurate packaging, IMHO, is unlikely to be in favor of OD for the money.

Slurry, as we know, is hygroscopic, draws moisture from the air, there is no need to explain what “water” is in the brakes, it is the boiling of the slurry at much lower temperatures in the summer, the oakiness of the system in winter - both options are a step towards unsafety and slightly (sometimes not even noticeable to the average person) worsen braking parameters. I would focus not on mileage, but on service life: 2-3 years and replacement. But I will make a reservation that within 5 years the fluid will contribute to braking, the question is how effectively and in what places it will then leak Messages: 6287 Registered: 07 Jan 2013, 14:28 Car: Rav4, AWD, 14, comfort, 20996000 km. , manual shifter rolled: Corolla 08, comfort, 1G3, 100000 km Corolla 11, elegance, 1G3, 110000 km

manual switches.

Location: 51 RUS Thanked: 528 times Thanked: 132 times

#20

Post by Karp » Feb 19, 2013, 11:19 pm

Not necessarily a barrel. In Belgorod, for example, oil and brake fluid and filters, etc. They were on shelves behind the “dorma” It is clear that this does not always happen.

Source: http://tc-club.ru/viewtopic.php?t=306

Toyota Corolla E150, Auris. REPLACING BRAKE FLUID IN THE HYDRAULIC BRAKE DRIVE

According to the manufacturer's recommendation, the brake fluid should be replaced after 40 thousand kilometers or 2 years of operation (whichever comes first).

WARNING

Brake fluid is very hygroscopic, absorbs moisture from the air, which, in addition to causing corrosion of brake system parts, lowers the boiling point of the fluid itself, and this can lead to brake failure during frequent heavy braking.

Replacing Toyota brake fluid

It's hard to imagine driving a car without a brake system. It allows you to stop the car, and therefore prevents you from crashing. The correct functioning of this system is impossible without brake fluid. Like any other working fluid in a car, it must be changed. We will certainly tell you when and how to do this in this article.

When you press the brake pedal directly, the brake fluid in the car's structure puts pressure on the brake cylinders, which slows the car down. When exposed to too high temperatures, the liquid can turn into vapor, causing the brake pedal to fail. This will render the system practically useless.

In this regard, the key parameters of brake fluid include viscosity and boiling point. High-quality products must comply with DOT - Department of Transportation standards. The boiling point is divided into two groups: for a “dry” liquid without water, and for a composition with 3.5 percent water content. All products comply with one of the standards:

DOT 3 (used in drum brakes);
DOT 4 (designed for disc brakes);
DOT 5 (used only on sports cars. As a rule, not used on regular cars).

They are based on polyglycols and their esters (from 93 to 98 percent). The remaining 7-2 percent are various additives. This type has excellent performance parameters. The only drawback is the property of hygroscopicity, when brake fluid absorbs water from the air. The more liquid, the higher the likelihood of corrosion of internal parts.

In what cases is it necessary to change

There are a number of cases in which a mandatory replacement of Toyota brake fluid is necessary. The first one is that you have discovered a leak. It is first necessary to carry out a complete diagnosis of the entire brake system in order to identify the cause of this incident. Once this is done, new brake fluid should be added.

The second case is when you find a high water content in the composition. This is done using a special tester. The higher the concentration of water, the lower the boiling point. It is recommended to regularly carry out such measurements to ensure compliance with the necessary requirements.

The third reason is that you had to mix a couple of brake fluids. This is an emergency when you simply need to get to the nearest service station or garage.

Mixing liquids is strongly not recommended, since, despite the same production standards, each manufacturer adds its own additives.

They can “conflict” and, accordingly, lead to breakdown of the entire system.

If you are going to mix brake fluids, be sure to read the information on the packaging. They must have the same basis. These may be products from various brands.

Toyota brake fluid replacement intervals

Drivers often ask the question of how often to change brake fluid. The first thing you should immediately look at is the technical manual for your vehicle. Usually this is where there should be information about what fluid to use and how often it actually needs to be changed.

If you cannot find this, experts recommend replacing it every 40 thousand kilometers. The second option is once every two years. These time limits must be observed if you do not find any leaks, the fluid in the reservoir always remains at the same level and the brake system functions properly.

What liquid to buy

For foreign cars with a service life of up to 5 years, it is recommended to use branded brake fluid from the manufacturer of the DOT 4 or DOT 5 standard. For older foreign cars, you should purchase DOT 3 fluid. If money does not allow you to buy a branded product, you can find a high-quality analogue.

Procedure for replacing brake fluid in Corolla, Camry, Rav4

The main question is how to replace brake fluid on a Toyota. Before the procedure, you must place the car on a lift or overpass. This will greatly simplify the replacement process. If this is not possible, you will have to remove the wheels and then put the car on jacks. You will also need an assistant, whose main task is to press the brake pedal to circulate fluid through the system.

The procedure is relatively simple. It includes:

1. First you need to remove the remaining old brake fluid. Unscrew the brake reservoir cap and then drain the remaining fluid. Then screw on the cap.

2. Fill with new brake fluid up to the “MAX” mark.

3. On one of the wheels, you need to open the drain fitting by placing a container.

4. Next, remove air from the system while pumping in new fluid. Place your partner in the car and tell him to press the gas pedal. When he does this, the system will pump the brake fluid and “squeeze out” the old one.

5. Perform similar actions until new fluid comes out of the fitting. Be sure to keep an eye on the level in the tank. It should stay around the “maximum” mark.

6. Tighten the fitting, and then follow steps 3-6 for the other three wheels.

This procedure will not take much time, and will save several thousand on car service costs. Replace them in a timely manner, since your life depends on the brakes.

If the material was interesting or useful for you, publish it on your social network page:

Source: http://jrepair.ru/to-toyota/zamena-tormoznoy-zhidkosti-toyota

Replacing brake fluid Toyota Corolla

Why do we need a braking system? Thanks to it, the car both slows down and stops altogether.

As long as this system is working properly, you can rest assured that you can safely drive your Toyota Corolla.

The performance of this system is very important, because it is its serviceability that will help protect the life and health of everyone in the car, and even other participants in a possible road accident.

What is brake fluid

What is brake fluid? This is a very important component of the vehicle’s hydraulics, equipped with drum and disc braking systems. Naturally, like any other fluid in a car’s structure, brake fluid also needs timely replacement.

Each car requires its own frequency of changing brake fluid; for Toyota Corolla it is recommended to replace it after the car has run 34 or 40 thousand kilometers or after 2 - 3 years of operation.

But if you have a rough and harsh driving style, your car may need to change the brake fluid more often. Replacing it does not imply anything supernatural or complicated, so doing it yourself is very easy.

There are two main ways in which you can change brake fluid in a Toyota Corolla.

The first way to change brake fluid

To replace this element in your car, you can contact a specialized automotive service.

But you can also use professional equipment yourself if you are either a qualified craftsman or a good amateur and have everything you need.

It is not difficult to replace the fluid thanks to special equipment; each device has instructions for use.

Second option for replacing brake fluid

This process does not include the presence of special professional and expensive equipment, but involves replacing the brake fluid yourself.

To begin, place your car on an overpass or inspection hole so as not to remove the wheels.
Purchase brake fluid specifically for the brand of your Toyota Corolla car, because another brand may not be suitable and may even lead to damage to some parts in the car.
It is best to change the brake fluid with an assistant. His duties will include periodically pressing the brake pedal. If you have no one to ask for help, the replacement process will take a little longer.
Let's start with the fact that you first need to remove the remaining used fluid from the brake system.
Open the brake reservoir cap, then put the required hose of suitable diameter and length on the rear wheel valve, and drain the unnecessary waste fluid into some kind of vessel or container.
Wait until the old fluid has completely drained and close the valve.
Now that there is no old fluid left in the tank, you need to pour in new brake fluid up to the “maximum” mark.
Now that the main work is done, you need to move on to removing excess air from the system. This is done by bleeding the brakes.
This is where the aforementioned assistant comes to the rescue, who has to press the brake pedal.
As the pedal is pressed, the valve on the wheels opens one by one. It is necessary to continue this work until the liquid begins to flow freely. Here you have the opportunity to independently control the level of fluid in the brake reservoir.
Be careful, if the liquid in the tank runs out, air will enter the system. Accordingly, the procedure will have to start again.
After you have completely bled the brake system, refill the brake fluid into the reservoir.
Check the functionality of the braking system by pressing the brake pedal. The pedal must be pressed with equal force.

After the work done, you can be sure that you have fixed the braking system of your Corolla car and now you can safely continue to use it.

A few warnings before work

Don't forget to check the brake fluid level in the tank. It should be located between the inscriptions “maximum” and “minimum”.
To get to the tank, you will face some difficulty. Its access is covered by the lining of the front panel. Remove this trim for convenience.
If the brake fluid begins to gradually disappear during the operation of the car, this indicates a leak, which most likely indicates that it is time to replace the pads.

Read also

Source: http://grandrepairauto.ru/zamena-tormoznoi-zhidkosti-toyota-corolla.html

Brake fluid for Toyota Corolla

The basis for safe driving is a properly functioning brake system; this truth is known to all vehicle owners. This system must always be in excellent condition. The main functionality of the braking system is to reduce the speed or completely stop the car as necessary when driving.

The process of the brake system is that the car's pads come into action under the pressure of the working cylinders. Brake fluid presses on these cylinders, and like any working tool, it periodically requires replacement; if the replacement is not done on time, brake failure may occur. This text will discuss Toyota brake fluid and its correct replacement.

Types of brake fluid

Brake fluid is divided into three types. And each of them has its own subtleties in application, composition, what you need to pay attention to when choosing.

The first type is called DOT3 brake fluid. Its peculiarity is the ability to corrode the paint covering the car body. When using this liquid, you need to be extremely careful and not damage your car. This type can also harm gaskets made of natural rubber, so owners of cars with such gaskets should avoid choosing DOT3 fluid.
DOT4 is the second type of brake fluid. Chemically, its action is also aggressive, like that of the first type, although the consistency is slightly different.
DOT5 is the third type of brake fluid. Its application concerns new developments in automotive technology.

In Toyota Corolla, brake fluid belongs to the third type, DOT4. Owners of these vehicles are recommended to choose original fluid, that is, developed specifically for brake systems of the Toyota Corolla brand.

Also, to avoid rapid wear and damage to the brakes, you must strictly adhere to the rule that different types of fluids cannot be mixed with each other. When replacing brake fluid in a car, you need to make sure that the used fluid is completely drained and the container is empty.

When to replace

There is a natural relationship between brake fluid consumption and vehicle mileage, that is, the more kilometers driven, the sooner the fluid needs to be replaced.

Each car has its own certain distance, after which it will be necessary to replace the brake fluid. The technical documentation attached to each car model must necessarily contain information of this nature.

The Toyota Corolla car, as indicated in the documentation for it, requires changing the brake fluid every 40-50 thousand km.

The need for regular replacement of brake fluid is influenced by its quality in absorbing water vapor floating in the air.

High-level hygroscopicity causes rapid accumulation of water in the brake fluid, which in turn reduces the boiling point.

For example, the accumulated 5% of water can lead to a drop in the boiling point to 50 degrees, this is very critical. When you press the brakes hard, vapor locks caused by water disrupt the braking process and slow it down.

Replacement process

The brake fluid replacement procedure needs to be done indoors, this could be a garage or a service station.

Then you need to lift the wheels using a jack; this must be done with each of the wheels. You need to lift the entire side of the car, then unscrew the wheel and remove it. Find a fitting for each wheel in turn.

It is through this that the brake fluid for Toyota Corolla is drained.

You also need to pay attention to the valves. These parts can wear out without a long fluid change, so they should be carefully inspected and, if worn, immediately replaced with new ones. Moreover, their cost is not high.

To facilitate the process of unscrewing the fitting, you can pour VD-40 on it, but do not unscrew it yet. Under the raised hood you need to find a container with brake fluid. Pump out as much remaining brake fluid as possible.

For this, various types of devices can be used, for example, homemade ones. There should be a maximum level mark on the fluid tank; when filling, do not exceed it.

There is no need to close the container at this time, but you can cover it to prevent dirt from getting in.

It is necessary to prepare a hose for draining the old fluid and a container for it. The next step is to unscrew the fitting. This usually requires two to three turns.

Then, using the drain hose, the draining process itself takes place, while you need to monitor the liquid, because when fresh liquid flows out, you must immediately tighten the valve. If the valve is worn out, it is recommended to immediately replace it with a new one.

This will help avoid another unscheduled repair in the future. Carry out the draining procedure with all wheels.

Source: https://drivemann.com/tormoza/tormoznaya-zhidkost-dlya-tojota-korolla.html