How to properly vent the car antifreeze

Normally, there is no need to deliberately exhaust the air after circulation, and the air is discharged through the water tank mouth, and it is possible for the warm air to have air, and the warm air return pipe is loosened.

Exhaust the air.

1.First, loosen the auxiliary tank cover, exhaust bolts, drain bolts at the lower part of the water tank, and drain bolts from the middle cylinder to release the old coolant.

2.Follow the steps below to add coolant: Tighten the drain bolt at the bottom of the water tank and the drain bolt on the middle cylinder according to the specified torque: Loosen the exhaust bolt and thermostat on the auxiliary tank.

Breather bolt on the seat: Turn on the ignition, set the heating regulator of the air conditioner to the highest temperature, and turn the air conditioner fan.

Turn to low (open the heating valve and run the auxiliary pump), slowly add coolant from the outlet of the auxiliary tank, fill up the entire auxiliary tank and wait until the coolant spills out of the exhaust bolt hole but there are no bubbles Finally, close the exhaust bolt and breather bolt. Close the sub-tank lid tightly and warm up the engine until the thermostat is turned on: Finally, wait for the engine to cool down to room temperature (20 30) before checking that the coolant level is within the standard.

The top of the float in the black sub-tank should be flush with the end face of the cover of the sub-tank, and the white transparent sub-tank should be observed to see if the liquid level in it reaches the highest mark.

Method of adding coolant to exhaust (must be done while the engine is cold):

Loosen the sub-tank cover but do not remove it (to prevent too much coolant from spilling), turn on the ignition switch, set the heating regulator of the air conditioner to the highest temperature, and set the air conditioner fan to low (let the heating valve open and let the auxiliary water pump run); Luck ** motive, slam the accelerator pedal 3 4 times to come; Medium wash engine (4500 5000r min) However, the engine should not run for more than 30s to prevent the coolant from expanding due to heat: If the coolant level in the auxiliary tank drops at this time, fill the auxiliary tank with coolant to the highest specified mark: Close the auxiliary tank lid tightly and warm up the engine until the thermostat is turned on

Finally, wait for the engine to cool down to room temperature (20 30) and then check whether the coolant level is within the standard. The top of the float in the black sub-tank should be flush with the end face of the cover of the sub-tank, and the white transparent sub-tank should be observed to see if the liquid level in it reaches the highest mark.

YesGenerally, the water temperature will drop significantly after half an hour after the hot car has just been driven, and the work of replacing antifreeze can be carried out at this time, and the specific operation steps for replacing antifreeze are as follows:

1. Start the engine to work to 90 degrees Celsius.

2. Wait until the engine is cool, then pull the hood wrench.

3. Open the hood.

4. Firmly support the hood.

5. Open the lid of the small kettle, if there is a lack of cooling water, add it to the MAX line.

No, after adding antifreeze, let the engine run, wait for the fan to turn, and then turn off the fire and open the water tank cover to check the liquid level.

Changing the antifreeze is a three-step process:

1. Inspection. Before completely replacing the antifreeze, it is necessary to do a comprehensive inspection to see if there are traces of leakage in each pipe and whether there are cracks, the key is to check the five-way water pipe, the five-way pipe is named because there are five interfaces connecting various parts, and the antifreeze is distributed to different parts of the car after flowing through the five-way pipe. If there is a leak of antifreeze in this section, the water pipe should be replaced or the connection should be re-fixed according to the situation.

2. Drain water. Drain the old antifreeze and wash the liquid passage with clean water. Clean water is added to the antifreeze refill tank, which is then filled with clean water to continuously flow through the engine cooling system, and then idling for 3 to 5 minutes to circulate the water. The water that starts to flow out of the pitcher is a little pink, and continue to pour in clean water until the water that comes out is clean.

Don't forget to remove the warm air water pipe and drain the water from the warm air tank.

3. Change the new solution.

After draining the water for about 1 hour, a new antifreeze is added through the water pipe of the tank (radiator), which is a method to allow the antifreeze to flow into the tank quickly. Then add another bucket of antifreeze to the antifreeze tank, add it until the antifreeze tank is almost full, and drive for about 10 minutes, at this time, the cooling system has removed part of the air, the liquid level has dropped, and then add the antifreeze to it, and fill the highest mark of the storage tank "maxt".

Question: Is it right to make up for the cold car?

Asked a question, got it. Thank you.

Does it make a difference if you ask a little more?

Yesterday I changed the antifreeze and there was a problem. Yesterday I changed the antifreeze, and I bought Honeywell (Honeywell) AF21 million universal long-lasting antifreeze imported from the United States) on Excellence.com), which feels good. It's enough.

However, when the worker screwed on the drain nut, he said that the washer was aging and there was no suitable washer to replace, so he got some red glue and did it for a long time. I don't know if this gasket is sold, buy a few next time, and replace it when you replace the antifreeze in a few years.

Theoretically, the antifreeze is in a confined space, it will not be reduced, if the freezing point is not good, it is recommended to replace, and it needs to be gradually exhausted when changing, it can be cooled down and discharged one by one with a small water tank cover!

When I changed it, I changed a bucket and it was still below the minimum line, do I still need to add it? If you don't have a small keg, if you want to buy a big keg, will it hurt the engine if you don't add it? But the tank is already full.

There is a water drain under the car water tank, which can be unscrewed to vent normally.

After replacing the antifreeze, start the vehicle, idle it, and wait for the cooling fan to run, because at this time the thermostat in the cooling system is fully open, then you need to open the water tank cover, and check the scale of the antifreeze after opening.

If it's missing, you'll need to add it to the standard scale. After 2 repetitions, the air in the cooling system is drained. At the same time, antifreeze needs to be added to the standard scale.

Some models do not have an opening for filling antifreeze on the water tank, only filling antifreeze from the mouth of the water tank. To exhaust the cooling system, simply open the lid of the refill box and allow the coolant to circulate normally in the system.

The continuous flow of antifreeze from the return pipe for replenishment is a sign that the air in the coolant system has been drained. Then add the antifreeze to the top dead center and the bottom dead center, cover the water tank lid, and the whole antifreeze replacement work is completed.

Exhaust after replacing with a new antifreeze: Exhaust can be done by loosening the exhaust bolt. Open the lid of the tank to vent, which requires a professional to do; It is possible to exhaust naturally by driving naturally, but it is not very likely that it will be exhausted in this way.

The following is how to vent after replacing the antifreeze:

1. Add antifreeze to the calibration position first.

2. In the upper corner of the water tank, there is a special exhaust valve, open the exhaust valve after adding coolant, if there is no exhaust valve, you can open the lid of the cooling water tank. The car idles for 3-5 minutes to observe the liquid level, and if it is reduced, the fluid will be replenished to the calibration position.

3. Buckle the coolant cover, drive normally for about 5 minutes, and check the liquid level.

4. After that, the examination time can be extended, and the fluid can be rehydrated if it is reduced.

Precautions: Different types of antifreeze must not be mixed, so as not to cause chemical reactions, precipitation or bubbles, because the consequence of this is that it will cause damage to the rubber seal, usually causing water leakage at the water pump and welds. Therefore, after the leakage of antifreeze, the same brand of antifreeze should be replenished in time, and distilled water or purified water can be temporarily replenished when there is no antifreeze of the same brand.

Photo by Lai Choi Ying) @2019

After the replacement, you need to exhaust, because you don't have exhaust to cause local gas blockage, so high temperature, just deflate it, provided that.

Yes, if.

If it's broken, it can't be opened, and it must be hot.

The Kia Smart Run SUV is deflated at that position by changing the antifreeze.

Hello, what kind of car are you.