【This column is jointly planned by Tencent Automobile and the old single car】
2684 words Duration to read 5 minutes.
"Simplex! This week, some netizens left a message, to this summer, a turn on the air conditioner has a great odor, or a lot of dust should be done? Also said"I haven't turned on the air conditioner for a year, why do I feel that the air conditioner is not cold?" "Why do other cars burn oil in the winter, and when my car burns oil in the summer, does it turn on the air conditioner?"
That issue will answer for everyone one by one, teach you how to maintain your car in summer and daily precautions, so that when you face the heat, you have the ability to judge on your own, not only to save money, but more importantly, to raise the car well, as far as possible to make the car not repair.
What is the reason why the air conditioner is not cool and smelly?
The problems faced when the air conditioner is turned on for the first time in summer are mainly divided into two, one is that the air conditioner is not cool, and the other is the smell of the air conditioner.
There is a difference between vehicle air conditioning and household air conditioning, so the air conditioner is not cold, don't just change the refrigerant, it is best to check the compressor, refrigerant pressure and heat dissipation before, these three places can directly affect the air conditioning refrigeration, replace the refrigerant may be good for a while, but may not solve the essential problem in the long run.
The air conditioner odor generally comes from the evaporation box, the interior space of the evaporation box is cold and damp, and the microorganisms reproduce after several months of idleness. The sour smell and even the bad smell of the air conditioner when the air conditioner is turned on also comes from this, not only that, but the microorganisms floating in the air can also have an impact on health. Simple steam cleaning alone does not cover the entire evaporation box, as long as there is a residue, the reproduction of microorganisms will reproduce the odor back into the air conditioner within a few days at an alarming rate of reproduction. So be sure to use special equipment to clean every corner, before opening the air conditioner in the summer, it is best to go to a qualified repair shop to do an air conditioner cleaning, and replace the filter element of the air conditioner by the way. In use, there is also a way to reduce the production of bacteria, that is, to turn off the compressor of the air conditioner, that is, A/C, before arriving at the destination, and at the same time adjust the air volume. This allows the remaining moisture in the evaporation tank to be blown dry. Dry evaporation chambers are less likely to multiply bacteria.
Visualize the equipment to clean up the evaporation box
The heat dissipation in summer is not only the temperature, but also the cotton willow wool helps
The heat dissipation problem just mentioned is the culprit of various small problems faced by the car in the summer, every year when the season changes, the willow flying in the air will not only bring sneezing continuously, but also attach to the condenser in the air intake position of the car layer by layer, if there are several rains, it will be sealed like mud, so that the efficiency of the heat dissipation system continues to decline, and finally the heat dissipation problem caused by the willow silk into our repair shop is countless, The general water flushing or compressed air blowing is difficult to attach to the condenser yang shu clear, so it is necessary to dismantle the condenser to expose a part, in order to completely clean the foreign matter above, such a cleanup is best to do once every six months, because the north in addition to the face of occasional wind and sand dust. It is best to maintain the habit of cleaning once a year or once a time to extend the life of the engine in areas where the southern willow is not serious.
If the cleaning is not timely, the defects of the heat dissipation system in the short term are difficult to show immediately, but due to the overheating and deterioration of the oil, the formation of coke and carbon deposits will continue to accumulate on the piston ring, blocking the piston ring, which is also the piston ring stuck in our industry, and the direct phenomenon is burning oil or pulling cylinder. Owners of their car after burning oil will often suspect that it is the cause of oil or gasoline, choose better performance, or even racing grade oil, but often the life of racing grade oil is not long, delayed replacement coupled with the lack of heat dissipation system will lead to more serious phenomenon of burning oil, and finally can only be overhauled to adjudicate the problem.
To ensure the normal operation of the heat dissipation system, on the one hand, it is to wash the water tank frequently, on the other hand, to use the standard oil and replace the oil on time according to the instructions. This is because in addition to lubrication, the oil also has an important role in balancing the internal temperature of the engine and helping to dissipate heat. That is to say, the oil is not only a part of the heat dissipation system, but also the first object when the heat dissipation system has problems.
In summer, if you are afraid of the sun and damage the paint, should you cover the car clothes?
Although many car owners will worry that the summer sun will burn the paint, so use the car clothes for protection. But in fact, the high temperature resistance of modern industrial car paints has been very strong, and the high temperature resistance performance has reached more than 120 °C. Although strong UV rays in summer still affect the organic composition inside the paint, in general, there is no need for additional protection for the exterior paint. If you use a car suit, the most important function is to prevent shellac from various insects. However, one is that the hidden car clothes should be cleaned, and the time of washing the car cannot be saved, and the clothes will be repeatedly rubbed by the wind, and some inferior car clothes that are not wear-resistant may cause certain damage to the paint surface, which may do more harm than good for the paint.
Usually when parking in the car sunscreen can also use the sun visor used in the car, it is best to choose a white non-reflective sun visor, which can prevent ultraviolet rays from aging the interior of the car, and will not cause light pollution to other vehicles.
The biggest risk in summer is the heat in the car
Due to the sealing of the space, the temperature of some positions in the car in the summer when the temperature is more than 30 degrees can even reach up to 70 ° C, so the high temperature not only makes the steering wheel hot, but also accelerates the aging of the interior, while releasing some formaldehyde that is not completely released. As soon as the sunburned car goes in in the summer, it smells, that is, the smell of various chemical raw materials emitted from the interior. The best way to prevent these smells is to stop in a cool place as much as possible, often open windows for ventilation, and use activated carbon adsorption. The other methods mentioned on the Internet are either to cover up with car flavor or to kill eight hundred self-inflicted white vinegar and other greater cleaning methods.
The high temperature in the car is also extremely dangerous for people, after the car is parked in the sun for 1 minute, the temperature inside the car will rise from 19 ° C to 30 ° C, and after seven minutes to reach a high temperature of more than 40 ° C. Considering that the child's respiratory system and blood circulation system have just begun to develop, and there is no ability to resist the sudden rise in temperature, in such a "stuffy tank truck", the child's body temperature will rise rapidly, the body water will soon be lost, which will soon cause heat stroke, and the closed and narrow space in the car is also easy to cause children's lack of oxygen, which may lead to suffocation in serious cases. Therefore, you must not leave your child alone in the car, even if it is only a few minutes away with the window open.
Is it easy to puncture tires in summer, just because the temperature is high?
The frequency of tire bursts in summer is often higher than in other seasons, and the reason is often not because of the temperature directly caused, modern tires work normally under high temperature conditions of 90 ° C -110 ° C and the rate of punctures does not change significantly due to the increase in temperature. Instead, the owner's friends reduce the tire pressure of the car in order to avoid high temperature punctures or because of negligence and do not notice the tire loss, the tire that is deflated is more prone to puncture than the overcharged tire, which is due to the fact that when the car is driving along the road, the side wall of the tire will bend and rub in contact with the asphalt road, thereby generating heat. If the tire pressure is correct, the heat generated is minimal. But if the tire pressure is low, then the sidewalls have to do more bending, creating a larger contact area and generating more heat. Driving on the high temperature road under the summer sun, the local temperature of the under-inflated tire is eventually too high, the air pressure is unevenly broken, and the phenomenon of puncture occurs.
If a puncture occurs, do not panic, hold the steering wheel with both hands steadily, maintain the direction of the vehicle, even if the vehicle is rocking, try to avoid hitting the steering wheel as much as possible to prevent the pendulum effect from causing the vehicle to lose control, which is the gyroscope phenomenon often encountered in racing. Secondly, do not slam on the brakes, the braking logic of different models is not exactly the same, some models have a simple braking structure, slamming on the brakes will cause several tires without punctures to be much more braking force than the puncture tires, and the uneven force of the vehicle will also be deflected. Some vehicles have several built-in safety functions, which can assign braking force to different tires in such extreme cases, and pressing the brakes to the end can reduce the braking distance. Therefore, the correct thing to do after a puncture is to hold the steering wheel tightly, slowly press the brakes, and pull over as soon as possible.
Simplex summary
The above is the most important point to pay attention to in the summer car, in short, the car is like a person, it will be afraid of cold and heat, and it will catch a cold if it is not well taken care of. So don't wait for the problem to repair, there is no place to find the loss that has been eaten, the water tank evaporation box that should be washed before the summer is washed, and the refrigerant tire pressure that has been checked has been checked. In this way, when driving, you can cool down and spend the summer in peace.
If your car encounters problems such as car use, car maintenance, maintenance, etc., please leave me a message in the comment area below, and I will answer it for you.