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What are the roles and functions of an automotive fresh air system?

2 Answers

LaJulia

07/24/25 3:40pm

Here are the roles and functions of an automotive fresh air system: 1. Role of the fresh air system: The fresh air system refers to a specialized device that filters outdoor fresh air and delivers it indoors while simultaneously expelling indoor polluted air outdoors. This achieves system balance and replaces the air in the compartment, creating a scientific air convection in a confined space, effectively adding a respiratory system to the vehicle. 2. Functions of the fresh air system: Ventilation function supplies fresh air needed for breathing; deodorization function quickly removes unpleasant odors caused by various factors; dust removal function expels floating dust and bacteria from the indoor air; moisture removal function effectively eliminates problems caused by humidity such as condensation, mold, and decay; and it also helps regulate indoor temperature.

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OEmmett

08/11/25 8:42am

When I first started driving, I was fascinated by the car's fresh air system. Its main function is to automatically draw in outside air, filter it clean, and then circulate it into the car, keeping the interior air fresh and free from dust, odors, or exhaust pollution. Functionally, it comes with a bunch of sensors that monitor particulate matter and harmful gases in the air in real-time. If it detects pollutants, it automatically increases the airflow for better filtration. It’s especially useful during traffic jams or smoggy days, helping to prevent motion sickness or allergies from prolonged driving. When I drive in the city, the system kicks in as soon as I close the windows in heavy traffic. It feels healthier than a regular AC, avoiding stuffiness while also deodorizing and sterilizing the cabin—saving me the hassle of manual adjustments. Overall, it’s a great helper for improving driving comfort and health, especially for the elderly and children.

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Can a Regular Battery Be Used to Replace the One in a Vehicle with Auto Start-Stop?

For vehicles equipped with an auto start-stop function, it is not recommended to replace the battery with a regular one. The specific reasons are as follows: 1. Using a regular battery may lead to insufficient working current for the starter: When a vehicle has an auto start-stop function, the starter requires a larger working current during operation. A regular battery cannot support such a high current, so only an auto start-stop battery capable of delivering a higher current output should be used. Due to the higher cost of such batteries, many car owners opt for regular batteries to save money during replacement. However, this practice can damage the starter. 2. Impact on power management: If a regular battery is installed in a vehicle with an auto start-stop function, it may cause abnormal power management. For example, some car owners who switch to regular batteries and disable the auto start-stop function still experience issues such as the battery not charging fully, mismatched power management systems, or the car failing to start. 3. Health risks for passengers: Auto start-stop batteries have relatively weaker heat resistance, so they are usually placed in the trunk or inside the cabin to avoid exposure to high temperatures from the engine. If a regular battery is installed, it may produce acid mist and other harmful gases during charging and discharging, posing health risks to passengers.

Must the owner go in person for the first maintenance?

No. But the owner's driver's license and maintenance manual need to be brought. Additional information: 1. The first maintenance, also called the initial maintenance, refers to the first maintenance after the running-in period of a new car. The so-called running-in period refers to the process in which various parts of a new car (especially the engine parts) continuously rub and mesh with each other during operation. Only after running-in can the parts cooperate seamlessly and the vehicle can perform to its full potential. 2. During the running-in process, the engine of a new car usually produces more metal shavings, oxidized engine oil, carbon deposits and other impurities. Although the oil filter can filter out most of the impurities, some may inevitably be missed. Once there are too many impurities in the engine oil and they are not cleaned in time, it will lead to high fuel consumption and excessive engine wear. Therefore, after the running-in period of a new car, the first maintenance is required.

Is Engine Cleaner Useful?

Engine cleaner is useful, but its effectiveness is relatively limited. Engine cleaner can remove residual sludge from the engine oil passages and, to some extent, clean carbon deposits from the piston rings and ring grooves, providing practical maintenance benefits for the engine. However, due to its short retention time in the engine lubrication system and the inherent limitations of this no-disassembly cleaning method, the effectiveness of engine cleaner is relatively limited. Additional information: Reasons why the engine lubrication system requires regular cleaning: During engine operation, wear caused by the relative motion and friction of various moving surfaces, as well as the combustible gas mixture entering the crankcase from the cylinders, can affect the performance and quality of the engine oil. When the performance and quality of the engine oil decline, its ability to clean the engine oil passages also decreases, eventually leading to sludge buildup in the engine lubrication system and, in severe cases, even clogging the oil passages. Therefore, the engine lubrication system needs to be cleaned regularly.

Will the Car Lock Automatically If the Key Is Inside?

For models equipped with a "keyless entry" feature, the car can detect the presence of the key inside and the onboard computer will prevent automatic locking. For models without the "keyless entry" feature, if the vehicle is turned off and the doors are closed without the key, both the doors and trunk will automatically lock after a few minutes. Additional Information: Solutions for accidental locking are as follows: 1. The most direct and effective solution is to use the spare key. Consumers receive a spare key when purchasing a car, typically a mechanical key. Locate the mechanical keyhole on the driver's side and use the spare key to unlock the door. 2. For vehicles equipped with telematics, calling customer service can enable remote unlocking of the doors. 3. Contacting a professional locksmith is another option. It's important to note that legitimate locksmith companies will require the owner to provide valid identification and proof of vehicle ownership, among other documents.

Does Stepping on the Accelerator in P Gear Damage the Car?

Here is an introduction about whether stepping on the accelerator in P gear damages the car: 1. If the car is in a parked state, stepping on the accelerator in P gear has no impact on the vehicle. This is because P gear is the parking gear, and stepping on the accelerator in this state is equivalent to revving the engine in neutral, causing no substantial harm to the car. P gear only adds a lock to the output shaft compared to neutral, and in P gear, the power is not transmitted to the output drive shaft—the internal gear mechanism is merely spinning freely. 2. After shifting into P gear, no matter how much you press the accelerator, the power will not be transmitted to the automatic transmission. This also does not harm the car. 3. However, if you shift directly into P gear while the vehicle is moving and stepping on the accelerator, it will cause catastrophic damage to the transmission.

Do small cracks on the side of car tires require replacement?

Small cracks on the side of car tires do require replacement. Because the structure of a car's tire sidewall differs from that of the tread, the presence of small cracks increases the likelihood of tire blowouts and similar incidents. Therefore, timely replacement is necessary to reduce the risk of such failures. Below is an introduction to the functions of car tires: 1. Support the entire weight of the vehicle, bear the car's load, and transmit forces and moments in other directions. 2. Transmit traction and braking torque, ensuring good adhesion between the wheel and the road surface to improve the car's power, braking, and passability; together with the car's suspension, they cushion the impact encountered during driving and dampen the resulting vibrations. 3. Prevent severe vibrations and premature damage to car components, adapt to the vehicle's high-speed performance and reduce driving noise, ensuring driving safety, handling stability, comfort, and energy efficiency.

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