What is the cause of the foaming of the BMW kettle

Go to the 4S shop to check it, this will have a lot to do with the condition of your car, and the situation of new cars and old cars will not be the same. If it is broken suddenly, the possible problems will be more complicated, such as the fan does not rotate and does not dissipate heat, the water pump is broken and does not rotate and does not circulate, which will lead to high engine pressure, and water leakage and lack of water may also lead to too high boiling pressure, which can easily lead to high pressure in the water system.

Water on the ground (seawater, river water, etc.)

river water, etc.).

And evaporate. In the air, the temperature at high altitude is much lower than on the ground, sometimes even below freezing. At.

of the environment, water vapor.

into small. The clouds in the sky are formed by the aggregation of these small water droplets.

These small water droplets are driven by the movement of the air and collide with each other, making their own.

It's getting bigger and bigger. The water droplets, which gradually grow larger, freeze due to the action of low temperatures.

Xiaoice beads (actually snow), small ice beads collide with each other or their appearance continues to condense water vapor in the air, so that their volume continues to increase, too large ice beads because they are too heavy, so that the updraft can not support and fall to the ground, in the fall, the ice beads heat up due to air friction and the high temperature effect of the ground in summer gradually melts into water droplets - raindrops; If the ice beads are too large (they can actually be called "

Before it falls to the ground, it doesn't have time to melt into rain, the smaller ones that fall to the ground can melt before they have time to become rain, and the slightly larger ones can only remain before they melt.

Floating in the air seems to be soft.

Target. The air flow is always in a violent motion, and this vigorous movement causes the clouds to constantly move up and down, forming a like.

Thick clouds of mushrooms (a type of cloud that is common in summer). Because the clouds are located in extremely low temperatures, the larger the ice balls form, the more they fall to the ground, the more they melt into rain. Therefore, there is a lot of hail in the summer. Winter due to.

The lower falling snow and ice also can't melt into rain halfway through, so it will only snow in winter.

Hello, if there are bubbles in the antifreeze kettle during the start time of the car, the reason is that the water inside has boiled, the principle of thermal expansion and cold contraction, so it will bubble.

1. There is air in the cooling system, and the engine vibration causes bubbles to escape when starting.

2. The cylinder gasket is damaged (the cylinder gasket is broken), and the high-pressure gas in the cylinder enters the waterway to form bubbles.

3. There are cracks in the body of the cylinder head, or the process hole leaks, and the gas enters the waterway to form bubbles.

2 and 3 are often accompanied by oil stains.

There are two scenarios! One is that there is air in the water tank, and the coolant added is not enough! The second is that the engine gasket is broken! The airways and waterways are connected! Thus causing the tank to bubble! Hope it helps!

In the operation of the car, the water from the water tank cover upwards and bubbling is mainly due to the poor sealing of the combustion chamber and the high temperature combustion gas of the diesel engine entering the cooling water cavity, so to solve the problem of water bubbling in the water tank, the sealing problem of the combustion chamber should be solved first, and the following phenomena are the main reasons for the sealing failure of the tender burning chamber:

1. The cylinder head is warped and deformed, and the bottom plane of the cylinder head is uneven.

2. The top plane of the cylinder block is uneven.

3. The torque of the cylinder head fastening bolt is not enough, and the fastening bolt is not evenly tightened according to the symmetrical cross several times.

4. The residual slag in the bottom hole of the cylinder head bolt on the top plane of the cylinder block makes the torque of the cylinder head bolt insufficient, and the phenomenon of "false tightness" occurs.

5. The threaded hole and threaded tapping of the cylinder head bolt on the cylinder block are not in place (the effective length of the threaded hole is not enough).

Hello, bubbling is generally caused by gas in the water tank, it is recommended to check if there is any water leakage, or the gasket is blown due to high temperature. Check it out. Have a great day!

If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello car owner, generally there is air in the waterway is not discharged, or the engine cylinder gasket is damaged, thank you for using the car master, I wish you a happy life. If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The water will bubble, most likely because the mattress has flushed the airway and caused the water tank to bubble [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, it was originally normal air pressure inside, as soon as the temperature was high, the thermal expansion and cold contraction, it expanded, and the natural pressure was high. Isn't it boiling? It stands to reason that there are no bubbles inside.

What is your water temperature? I hope it can help you [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

The bubbling of the automobile water tank is mainly due to the poor sealing of the combustion chamber and the high-temperature combustion gas of the diesel engine entering the cooling water cavity, so to solve the problem of water bubbling in the water tank, the sealing problem of the tender burning chamber should be solved first.

Treatment method: 1) Adopt machining (milling, grinding) or manual grinding of the bottom plane of the cylinder head and the top plane of the cylinder block to eliminate unevenness.

2} Eliminate the residual slag in the bottom hole of the cylinder head bolt on the top plane of the cylinder block to ensure that the tightening torque of the cylinder head bolt meets the specified requirements.

3) Tighten the cylinder head bolts in 3 times and in order according to the regulations.

4) Re-clean the threaded hole of the cylinder head on the cylinder block with taps with the same thread diameter and accuracy level as the cylinder head.

5) Replace the broken cylinder liner.

There are two reasons for this; One is that there is air in the waterway; the second is that the cylinder head gasket has been broken, so that the gas in the cylinder has been stringed into the waterway; If this is confirmed, the vehicle must be stopped for repairs immediately.

In this case, will there be a problem with the water tank pump, you should go to the repair shop to check.

The bubbles in the water tank are generally caused by the high-pressure gas in the cylinder channeling into the cooling water channel. The causes of blow-in and how to eliminate them are as follows. 1. The cylinder head nut is not tightened according to the specified torque.

If the torque is too small and the cylinder head is not compressed, the high-pressure gas will escape into the waterway. The cylinder head nut should be tightened according to the prescribed torque and re-tightened periodically. 2. The cylinder gasket has been used for too long, and it has been washed out or burned, and the sealing has deteriorated, resulting in air leakage.

To replace the cylinder head gasket with a new one. 3. The plane of the cylinder head is uneven or deformed, resulting in air leakage. The cylinder head plane should be ground or the cylinder head should be replaced.

4. Improper assembly, resulting in fracture and blow-in at the shoulder of the cylinder liner table. Replace the cylinder liner with a new cylinder liner in accordance with the prescribed method. 5. The height of the shoulder of the cylinder liner is not enough or the depth of the shoulder hole on the body is too large, resulting in the cylinder sleeve being inserted into the body, the plane height of the protruding body is not enough, or even sagging, and the gas will flow into the waterway from the shoulder.

Therefore, it should be tested before assembly, check the amount of protrusion, and ensure that it is within the allowable range.

Whether your secondary kettle is round or square can be changed with a kettle lid.

If it is rhythmic, it should be a punch, that is, the cylinder gasket is aging, and the waste of the cylinder burning ** runs out of the water tank in the waterway.

The fan is broken, and there is a new reason for the high temperature and lack of water, and after adding water, it bubbles.

There must be a broken head gasket and a mixture of oil and coolant. Pull out the dipstick to see if it's cloudy. If the oil is normal, then it may be that the tank return wheel is broken.

Is it boiling? It's too hot.

Or is it foaming? Good antifreeze should not foam by replacing the antifreeze.

Look for any water squirting out of the exhaust pipe, and if possible, the head gasket is out.

Recall if you have ever committed a high temperature before, if so, it may be that the head gasket has burned out.

It is possible that the cylinder head is. The cylinder head is corroded or has a crack.

Antifreeze expires, please replace, remember!

There is air to bubble, and there is air when it leaks.

Hurry up and stop, your engine cooling system has a problem, quickly contact the 4S shop or other repair shops, if it is not serious, your loss is limited to changing the small accessories in the cooling system, if it is serious, you have to overhaul the engine!

Hello: It is recommended to change the water tank cover first, this part has pressure requirements, and it will rust and stagnate after a long time;

You go check the cylinder pressure, it's less than 85% of the original car. Just do the dismantling;

You've changed so many things, all that's left is to check the inside of the engine;

Hello friend copy told you that this year's model of water circulation.

The pipeline structure of the bai ring system is more complex, and it is often caused by the air circulation system in the water circulation system, which requires a thorough and careful discharge of the water circulation system and air, which can be used to manually exhaust the air operation, friends, first open the key door, turn on the low beam of the vehicle, and prevent the vehicle from entering a dormant state. Then all of them must be connected to the car in the stabilized power supply, because the next operation will lead to serious discharge of the vehicle battery, affecting the service life of the vehicle battery. The next operation is to turn on the air conditioner, adjust the temperature to the maximum air conditioner temperature and adjust the air output to the minimum, and then, press the accelerator pedal three times, and then hold it so that the electronic water pump will work, then the corresponding emptying and operation will begin, at least for about fifteen minutes of time repeatedly, step on the accelerator pedal.

This is an electronic way, you can also follow the general way, remove the corresponding water pipe at the highest position of the water level to leave a certain analysis, and you can also operate the emptying machine, I hope my answer can help you if you have any questions, you can contact me at any time.

The electronic water pump and thermostat are broken.