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Does the air conditioning turn off automatically after the car is turned off?

1 Answers
BriannaFitz
07/30/25 9:26am
After the car is turned off, the air conditioning will automatically shut down. The air conditioning compressor only operates when the engine is running. When the car is turned off, the compressor stops working, and the air conditioning naturally turns off. Here is some relevant information about car air conditioning: 1. Introduction: The car air conditioning system (air-conditioning-device), commonly referred to as car AC, is used to regulate and control the temperature, humidity, air cleanliness, and air flow inside the car cabin to an optimal state. It provides a comfortable environment for passengers, reducing travel fatigue, and creates good working conditions for the driver, playing a vital role in ensuring safe driving. It generally includes cooling, heating, and ventilation systems. This integrated system makes full use of the limited space inside the car, featuring a simple structure and easy operation, making it a popular modern car air conditioning system internationally. 2. Turning off the air conditioning: It is recommended to turn off the air conditioning one or two minutes before parking and turning off the engine. This helps dry the air vents, prevents bacterial growth inside the AC system, and protects the engine. If the air conditioning is not turned off before shutting down the engine, the next time the vehicle is started, the engine will have to bear the load of the air conditioning. The best practice is to start the vehicle and wait two to three minutes until the engine is properly lubricated before turning on the air conditioning.
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What is the actual height of a 2-meter height limit on highways?

Highway height limits marked as 2 meters are actually a safe clearance height, with the actual height being around 2.2 meters. Therefore, slightly taller vehicles may barely pass, but this is not recommended as getting caught by traffic cameras will result in fines and penalty points. Typically, small balls are suspended from height limit gantries as safety warnings—if a vehicle touches these balls, it cannot pass. The purpose of setting height limit barriers is often due to bridges, tunnels, or underpasses ahead. More details are as follows: 1. A 2-meter height limit is only a safety clearance: Height limit barriers are commonly seen at highway entrances and exits, usually marked with the height limit (e.g., 2 meters). According to relevant data, the 2-meter limit is a safety clearance, with the actual highway height slightly higher, generally around 2.2 meters. 2. Height limit standards vary by road type: For first- and second-class highways, the clearance height of barriers should be 5 meters; for third- and fourth-class highways, it should be 4.5 meters. The primary purpose of height limit barriers is to ensure the safety of drivers and infrastructure.
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Why does 12123 show a transferred vehicle?

12123 may display a transferred vehicle due to software update delays. Simply wait a few days until the system update is complete, and it will return to normal. Vehicle transfer refers to changing the ownership name of a vehicle. Completing the transfer process legally ensures the transfer of vehicle ownership and guarantees the legality of the vehicle's origin. Documents required for vehicle transfer: Original owner's ID card, new owner's ID card, original and duplicate vehicle license, purchase tax certificate, proof of paid vehicle and vessel tax, vehicle registration certificate, vehicle inspection report from criminal investigation department, and insurance policy (all original documents required). Vehicle transfer process: 1. Issue a transaction invoice and pay the used car transaction tax (1% for private owners, 4% for corporate owners). 2. Vehicle inspection: Drive the vehicle to the inspection site for external inspection, tracing the VIN, removing license plates, and taking photos. Attach the vehicle photo to the inspection record form. 3. Enter the transfer hall to complete filing procedures. 4. License plate selection: Take a number from the dispenser and queue with relevant materials to pay transfer fees. 5. Transfer-out procedure: Required materials include the Application Form for Vehicle Registration/Transfer/Cancellation, Transfer-in Application Form, Inspection Record Form, original vehicle title certificate, original license, original owner's ID card, original license plate number, vehicle photo, and transfer invoice from the trading market.
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Is It Safe to Sit in a Car During a Thunderstorm?

It is safe to stay in the car during a thunderstorm. The reasons are explained in detail below: 1. The principle used for lightning protection is equipotential bonding: This means connecting metal objects with wires or other metal objects. When a high-voltage lightning strike occurs, the potential of the metal objects becomes approximately equal, preventing the formation of a potential difference and thus no current flows. 2. It is very safe to be in the car during a thunderstorm: Because the metal shell of the car forms an equipotential surface, the potential of the people inside the car and the car itself is roughly equal. When lightning occurs, no current will be conducted to the people inside the car. Therefore, it is safe to be inside the car during a thunderstorm. 3. The car is a metal object: However, its enclosed structure makes it a 'Faraday cage.' The wet tires serve as the key component connecting the car body to the ground for conduction. Even if the car is struck by lightning, the current can pass through the car's outer shell and tires to the ground, causing no harm to the occupants inside.
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What Are the Reasons for the Car Radar Not Beeping?

The reasons for the reversing radar not beeping are as follows: 1. The reversing radar switch is turned off: Most cars have a control switch for the reversing radar on the central control panel inside the vehicle. If it is turned off, the reversing radar will not work. Solution: Turn on the reversing radar switch. 2. Reversing radar circuit failure: When the reversing radar circuit ages or breaks, the reversing radar will not function properly. 3. Check if there is current in the main unit's power line: When you find that the reversing radar is not beeping, first check if the main unit's power line is properly connected and if there is current; then check if the radar main unit line is loose. If neither of these is the issue, the problem may lie with the radar itself. 4. Buzzer damage: If the problem is confirmed to be with the reversing radar, the first possibility to consider is that the buzzer is damaged. In this case, you need to purchase a new buzzer and install it; additionally, recall if your car has undergone any recent modifications. If so, it is possible that the reversing radar circuit was damaged during the modification process, and you will need to take the car to a repair shop or 4S store for inspection. 5. Check if the circuit connection at the bumper is intact: When you find that the reversing radar is not beeping, you can also check if the circuit connection at the bumper is intact, then check if the reversing light turns on when you shift into reverse. If it doesn't, check if the reversing light's connection switch is damaged. Also, check if the computer displays any fault codes. If none of these issues are present, inspect the reversing radar itself for any problems.
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How to Deal with Faded and Dull Black Car Paint?

Glazing is an ideal method to restore faded and dull black car paint. The principle involves applying a glaze to the car body, which fills in the cracks on the paint surface, thereby restoring the paint's shine. After glazing, the car's glossiness can even surpass that of the original factory paint. Additionally, the glaze has characteristics such as high-temperature resistance, water resistance, corrosion resistance, and good sealing properties, allowing the effects to last for a relatively long time. More related information is as follows: 1. When the car paint is faded and dull: Many people opt for cheaper solutions like polishing and waxing. Although polishing and waxing are inexpensive, their effects are not as good as glazing. 2. Polishing: This involves fine grinding of the paint surface to remove the aged parts of the paint, followed by applying a clear coat to enhance glossiness. However, since there is no protective layer on the exterior after polishing, the effects do not last long. Moreover, polishing affects the thickness of the clear coat and can cause some damage to the paint. Excessive polishing can lead to the clear coat being worn through, so it's best to limit polishing to no more than five times. 3. Waxing: The process of waxing is similar to glazing in principle, but the effects differ significantly. Since wax is an oily substance, it can be quickly washed away by water. Unlike glazing, waxing does not offer high-temperature resistance, water resistance, corrosion resistance, or good sealing properties, resulting in shorter-lasting effects.
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How to Handle Leaving the Scene After a Minor Vehicle Collision?

If a minor vehicle collision occurs and the driver fails to immediately report the accident or stop to handle the situation after becoming aware of the incident, it is considered hit-and-run. Based on the description, this behavior already constitutes hit-and-run. To prove that one did not commit hit-and-run, it is necessary to demonstrate that the driver left the scene unknowingly, primarily proving that the departure was not to evade legal responsibility. More relevant information is as follows: 1. "Road Traffic Safety Law of the People's Republic of China": Article 70 states that in the event of a traffic accident on the road, the driver must immediately stop the vehicle and protect the scene; if there are casualties, the driver must immediately rescue the injured and promptly report to the traffic police on duty or the traffic management department of the public security organ. If the scene is altered due to rescuing the injured, the positions should be marked. Passengers, drivers of passing vehicles, and pedestrians should assist. 2. No casualties: In the event of a traffic accident on the road that does not result in casualties, and if the parties involved have no disputes over the facts and causes, they may leave the scene immediately, restore traffic, and negotiate compensation for damages on their own; if they do not leave the scene immediately, they should promptly report to the traffic police on duty or the traffic management department of the public security organ. In the event of a traffic accident on the road that only causes minor property damage and the basic facts are clear, the parties involved should first leave the scene and then negotiate the settlement.
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