Why 4S is not recommended to change the brake fluid

The 4S shop does not recommend changing the brake fluid, because the process of changing the brake fluid is cumbersome and hard, and one person needs to step on the brakes, one person to check whether the brake tank is bubbling, and another person is responsible for replenishing the brake fluid. You must know that the car has 4 wheels, and it is very hard to toss like this. What's even more tiring is that the old brake fluid must also be drained clean.

Another point is that changing the brake fluid is very important, if the quality of the brake fluid used is not good enough, it will corrode the plug in the brake oil pump, but lead to the weakening of the braking effect, and the brake oil of the original car is not low. Brake fluid with bad oil will weaken the braking effect, and once there is air left in the oil pipeline during the replacement process, it will bury a great safety hazard.

A brake fluid change requires the cooperation of more than two technicians. One person needs to put oil and another person to step on the brake pedal, in fact, pedaling is a very tiring job, generally need to be pedaled dozens or even hundreds of times.

Brake fluid, also known as automobile brake fluid, was used in early automobiles to use drum brakes for mechanical braking. With the development of hydraulic technology, safe and reliable hydraulic brake systems are widely used in automobiles. Brake oil in the car brake system plays a transmission role, we step on the brake pedal with our feet, through the assistance of the vacuum booster, push the brake master cylinder, the brake master cylinder pushes the brake oil, the power under the feet through the brake oil to the brake cylinder to which the four wheels belong, the brake cylinder pushes the brake pads, and the brake pads squeeze the brake disc to form a braking force.

If the brake fluid is not changed in time, it will cause the brake fluid to be turbid, the boiling point will drop, and the effect will deteriorate, resulting in brake failure! Because the brake fluid system will always be worn, and the low-end brake fluid impurities will lead to the brake pump accelerated wear and brake system oil blockage, expired brake oil brake effect is not ideal, just because the owner has been adapting to his vehicle for a long time, so it is not noticed. In order to drive safely, it is recommended to replace it immediately.

Now basically in the maintenance manual of every vehicle, you will be told that the brake fluid has a number of kilometers to change, basically at 40,000 kilometers or should be replaced in two years.

1. The replacement process is hard and not profitableBecause brake fluid is very important, the quality of brake fluid must be passable and better, and the quality of brake fluid itself is very low. The ** that is too low makes the 4S shop unable to get less profit from it, and it is also very laborious, so the 4S shop does not recommend changing the brake fluid.

2. The replacement process is cumbersome and difficultChanging the brake fluid requires three professional technicians, one to apply the brakes, another to check whether the brake tank is bubbling, and one person to add new brake fluid. Repeat this procedure for all four tires in turn.

3. Pay attention when changing the brake fluidBecause in the process of changing the brake fluid, no bubbles are allowed in the oil pipe, which requires the care and attention of the staff. Once there is air in the pipes, there will be a big safety hazard.

Because it's not cost-effective.

Main features: 1) The freezing point of automobile brake fluid is very low, and it has good fluidity at low temperature.

2) The boiling point of automobile brake fluid is extremely high, and there will be no gas resistance in the state of high temperature.

3) When the car brake fluid is used, you will find that its quality changes very little and will not cause the erosion of metal and rubber.

There is no such wisdom as rolling socks, and the brake fluid needs to be changed.

The maintenance tips given by the manufacturer are generally replaced every 2 years or 40,000 kilometers. Then the fluid level of the brake oil pot should be checked regularly, keep the fluid level between the max and min markings, and the brake fluid can be replenished when the fluid level is low.

In order to ensure its effect, the brake fluid needs to be replaced regularly, otherwise it will bring hidden dangers to the driving if it is not replaced for a long time, and there may be problems such as insufficient brake pressure and corrosion of the brake system.

Precautions for changing brake fluid:

1. Brake fluid can not be mixed with air: change brake fluid is most afraid of mixing into the air, if mixed with the air will be abandoned, at this time can not be too troublesome, for safety it is necessary to re-deflate, until there is no air in the system for good service.

2. The oil drain bolt should be tightened to prevent oil leakage: the oil drain bolt at the brake cylinder is not tightened, which is caused by carelessness. Once the bolts are not tightened, the consequences of brake fluid leakage can be imagined, and it will be a dangerous hidden danger if it is not discovered in time when driving.

So when you change the brake fluid, it's a good idea to check if the bolts are all tightened. Moreover, brake fluid is very corrosive and can affect other parts of the car.

It needs to be replaced, and the brake fluid will deteriorate after a long time, which will lead to a decrease in the braking effect.

Hello dear, <>

I'm glad to answer for you, the 4S shop does not recommend replacing the brake oil, this is mainly related to the 4S shop to replace the brake fluid to give the man-hour fee is too low, so the maintenance personnel are reluctant to replace, first, the brake oil, this must be replaced in a fixed delay, because the brake oil is too long, there will be an increase in water content, affecting the braking performance. Second, under normal circumstances, the replacement cycle of brake fluid is two years or 40,000 kilometers, and third, the choice of brake fluid must choose the model that matches the original vehicle, and now most models are dot 4 type code vertical age number.

Summary. Hello I'm honored for your question, the 4S shop does not recommend changing the brake oil, because the process of changing the brake fluid is cumbersome and hard, and one person needs to step on the brake and check whether the brake tank is bubbling or not. In addition, one person is responsible for refilling the brake fluid.

You must know that the car has 4 wheels, and it is very hard to toss like this. What's even more tiring is that the old brake fluid must also be drained clean.

Hello, I'm honored that your question 4S shop does not build a return to discuss changing the brake fluid, because the process of changing the brake fluid is cumbersome and hard, and one person needs to step on the brakes and check whether the brake tank is bubbling. In addition, one person is responsible for refilling the brake fluid. You must know that the car has 4 wheels, so it is very hard to toss it like this.

What's even more tiring is that the old brake fluid must also be drained clean.

Precautions for changing brake fluid 1 Brake fluid can not be replaced with or at will, after all, the brake system has a relatively large impact on the use of the car and driving safety, when changing the brake oil, you must go to a professional car repair or maintenance agency and 4S shop to replace. 2. When changing the brake fluid, in addition to the selection of the mechanism is very important, the quality of the selected brake fluid is also very important, if the quality is not good, it will not only reduce the brake effect of the jury beat, but also corrode the leather plug of the brake oil pump. It is more recommended to replace the brake fluid of the original car of the original digging factory, of course, the ** of replacing the brake fluid of the original car is also relatively high.

But for the sake of driving safety, you still shouldn't care too much**.

Summary. Hello, dear. 2. The cost of the original brake fluid is high, and the risk of replacing other brake fluids is a bit large.

Changing the general brake fluid can easily cause problems in the car, but if you change the original brake fluid, the cost is still high. Therefore, in order to avoid unnecessary trouble, the 4S shop does not recommend changing the brake fluid. 3. The replacement process of brake fluid is very troublesome, so there are many replacement processes in this way, so that the 4S shop does not want to take such a replacement list, so they do not recommend replacing it.

Hello, dear. The reasons why it is recommended to change the brake fluid for 4S are as follows: 1. Because replacing the brake fluid is not only time-consuming and laborious, but also less expensive.

You must know that when the brake fluid is replaced, it is necessary to replace all the old ones, and then you can replace the new brake fluid. Such a process not only takes a lot of time, but also is very troublesome.

Hello, dear. 2. The cost of the original brake fluid is high, and the risk of replacing other brake fluids is a bit large. It is very easy to cause problems in the car by replacing the general brake fluid, but if the original brake fluid is replaced, the cost of the chain rubber is even higher.

Therefore, in order to avoid unnecessary trouble, the 4S shop does not recommend changing the brake fluid. 3. The replacement process of brake destruction car oil is very troublesome, so there are many replacement processes in this way, so that the 4S shop does not want to take such a replacement list to be shipped, so they do not recommend replacement.

Hello, dear repentance! First of all, the work of changing the brake fluid is tedious, time-consuming, and easy to get dirty hands and the ground; The second is that the profit of changing the engine oil is not high, and for the maintenance personnel, the investment and income are disproportionate; Finally, it is a multi-person operation, which requires more manpower to cooperate, and in addition, the disposal of waste engine oil is also an investment for merchants. Then for the car owner, if the oil is in the change cycle, it must be replaced.

The owner must change the brake fluid regularly in the car, especially the car with automatic transmission, because when stepping on the brake, the gearbox will change gears, so the demand for mechanical lubrication and heat conduction is relatively large, so the brake fluid ablation speed is fast, and the brake fluid aging is fast. Especially after the brake fluid is used for a long time, the water content of the engine oil will increase, and when braking, the temperature of the brake fluid will rise, which will cause the water to boil, form bubbles, and reduce the braking effect. Therefore, it is not recommended to change the brake fluid in 4s!

Summary. Dear, glad to answer for you! 4S does not recommend changing the brake fluid for the reason: it is because the process of changing the brake fluid is cumbersome and hard, one person needs to step on the brake, one person to check whether the brake tank is bubbling, and another person is responsible for replenishing the brake fluid.

Dear, glad to answer for you! 4S does not recommend changing the brake oil reason: because the process of changing the brake oil is cumbersome and hard, the mold wax needs a person to step on the brake, a person to check whether the brake tank is slippery bubbles, and a person is also responsible for replenishing the brake rolling oil.

Extended information: Another point is that changing the brake fluid is very important, if the quality of the brake fluid used is not good enough, it will corrode the plug in the brake oil pump, but lead to the weakening of the braking effect and the original bend and the original car of the state factory The price of the brake oil is not low. Brake fluid with bad oil will weaken the effect of brake shed, and once there is air left in the oil pipeline during the replacement process, it will bury a great safety hazard.

Summary. Hello friends, the 4S shop does not recommend that car owners change the brake fluid because the brake system is one of the most important parts of the car's safety performance, and the quality of the brake fluid directly affects the performance of the brake system. If it is not replaced properly, it will lead to serious safety problems such as brake failure

Hello friends, the 4S shop does not recommend that the owner change the brake fluid because the brake system is one of the most important parts of the car's safety performance, and the quality of the brake fluid directly affects the performance of the brake system. If it is not replaced properly, it will lead to serious safety problems such as brake failure

Hello friends The following are some extensions of vehicle knowledge for your reference 1Engine: The engine is the power source of the vehicle, which converts fuel into energy to drive the vehicle's motion.

Common engine types include gasoline engines, diesel engines, electric engines, etc. 2Gearbox: The gearbox is the core component of the vehicle's transmission system, which controls the speed and power of the vehicle by changing the transmission ratio so that the torque output from the engine is transmitted to the wheels.

Common types of transmissions include manual transmissions, automatic transmissions, CVT transmissions, etc. 3Chassis: The chassis is the skeleton structure of the vehicle, which is composed of the frame, suspension system, steering system, braking system and other components, which carries and supports the body and power system to ensure the stability and safety of the vehicle 4

Braking system: The braking system is an important guarantee for the safety of the vehicle, which can quickly reduce or stop the speed of the vehicle. Common types of braking systems include disc braking systems, drum braking systems, anti-lock braking systems, etc. 5

Suspension system: The suspension system is the part that connects the body and the wheels, which can alleviate road vibrations and make the vehicle ride more stable and comfortable. Common types of suspension systems include independent suspension systems, non-independent suspension systems, etc. 6

Tires: Tires are the parts of the vehicle in contact with the ground, which have an important impact on the traction, brake force and dissipation, and handling of the vehicle. Common tire types include ordinary tires, low-pressure tires, high-performance tires, etc. The above is an extension of some vehicle knowledge, I hope it will help you