What does AQS in cars mean?

2 Answers
MadelynDella
07/30/25 1:03am
Automotive AQS is an air quality module, an automatic device capable of sensitively detecting the turbidity and humidity of the outside air and promptly switching between air recirculation and fresh air modes. AQS is highly sensitive to vehicle exhaust. For instance, during traffic congestion in urban areas, if the vehicle ahead suddenly emits a large amount of exhaust, the intelligent air conditioning system can detect it within seconds and immediately switch to the recirculation mode, ensuring the cabin remains filled with fresh air. AQS has a moderate response to road dust. When driving on roads with light dust, AQS will not switch immediately. It only rapidly switches to recirculation mode when the road dust becomes severe. This is why frequent cleaning of the air conditioning filter is necessary for vehicles often driven on sandy or dusty roads.
Was this review help?
16
4
Share
DiRemington
08/15/25 6:33am
As a seasoned driver who navigates city streets daily, I've found that the AQS (Air Quality Sensor) acts like a little assistant, keeping an eye on both indoor and outdoor air quality. Every time I start the car, it automatically kicks in, detecting external pollutants like heavy dust or excessive exhaust fumes, then switches to recirculation mode, filtering fresh air before delivering it into the cabin. This feature is particularly handy during traffic jams, sparing me the hassle of manual toggling. On smoggy days, it helps reduce my exposure to PM2.5—a health boon, especially for allergy-prone individuals like myself. In fact, AQS has become a standard feature in modern car air conditioning systems, even offering slight fuel savings by minimizing external air resistance. Routine maintenance, such as keeping the cabin air filter clean, ensures optimal AQS performance. All in all, it's a smart function that enhances driving ease and safety. I highly recommend opting for this system when purchasing a car—it significantly elevates comfort levels.
Was this review help?
4
3
Share
Expand All
More Forum Discussions

What brand is Horizon tires?

Horizon is a tire brand from the American company Horizon, which is registered in the United States as Qingdao Coast Tire Co., Ltd. It primarily serves the U.S. replacement tire market, offering services such as tire sales, warehousing, logistics distribution, U.S. product design technical support, product development, and market information. Tires are circular elastic rubber products assembled on various vehicles or machinery to roll on the ground. They are typically mounted on metal rims to support the vehicle body, cushion external impacts, ensure contact with the road surface, and maintain driving performance. Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and high and low temperatures during operation. Therefore, they must possess high load-bearing capacity, traction performance, and cushioning performance, along with high wear resistance, flex resistance, and low rolling resistance and heat generation.
2
0
Share

What current should be set when charging a car battery?

When charging a car battery, the charging current should be determined based on the battery's capacity. Generally, car batteries range from 36AH (smallest) to 80AH (largest) for passenger vehicles (truck batteries are even larger). The charging current is typically set between 0.1C to 0.2C (where C is the capacity value). For a 36AH battery, a charging current of 4A to 8A is appropriate, while an 80AH battery requires 8A to 16A. Under normal conditions, a charger can fully charge the battery in 4 to 5 hours. Avoid frequently overcharging the battery. Although the current generated by the charger is not high, prolonged boiling of the electrolyte can cause fine particles on the surface to detach, potentially leading to oxidation and loosening of the active material from the grid framework.
12
0
Share

What does Volkswagen 230TSI mean?

Volkswagen 230TSI indicates that the model is equipped with a TSI engine with a maximum torque of 230 Newton-meters. The Volkswagen brand classifies its engine torque values into several "torque categories," such as 180, 230, 280, 330, and 380 Newton-meters. The vehicle's rear badge system displays the "torque category mark value in Newton-meters" plus the "engine technology type" on the right rear of Volkswagen passenger brand and light commercial vehicles equipped with TSI and TDI engines. Volkswagen is an automobile manufacturing company headquartered in Wolfsburg, Germany, with models including Touareg, Tiguan, Tiguan L, and Teramont.
2
0
Share

Why are the steering wheels of foreign cars on the right?

The reason why the steering wheels of foreign cars are on the right: Different countries have different traffic systems. 66% of the countries in the world drive on the right, while 34% drive on the left. Countries that implement left-hand traffic include: the United Kingdom, Ireland, Malaysia, Nepal, Pakistan, India, Indonesia, Singapore, Australia, New Zealand, Japan, etc. Therefore, the steering wheels of cars in these countries are on the right. In continental Europe, North America, China, and most countries around the world, the right-hand traffic rule is adopted, and many countries have steering wheels designed on the left.
20
5
Share

Why is the engine noise loud in the Cruze?

The reasons for loud engine noise in the Cruze: 1. If you hear a popping sound from the exhaust pipe when pressing the accelerator pedal, the sound is not very loud, and the car does not drive abnormally, but fuel consumption increases, it is recommended to check the muffler and inspect the exhaust pipe for any damage; 2. If there is a rattling sound during acceleration, it is advisable to check the ignition timing settings, as it may be due to engine overheating, carbon buildup in the engine, or poor fuel quality, requiring higher-grade fuel; 3. If there is abnormal noise from the engine, it may be due to contaminants inside the engine, and it is recommended to change the engine oil, oil filter, and clean the engine. The Chevrolet Cruze is a compact model designed by General Motors, with body dimensions of 4666mm in length, 1807mm in width, and 1460mm in height, and a wheelbase of 2700mm. The vehicle is equipped with two engines, a 1.5L and a 1.4T, with maximum power outputs of 114 horsepower and 150 horsepower, respectively.
3
1
Share

How Long Does Car Window Tinting Last?

How long car window tinting lasts depends on the material and manufacturing process of the film. The lifespan of low-quality and high-quality films can differ by more than ten times. Automotive films can be categorized into three types based on manufacturing process: 1. Dyed film: This involves directly applying dye to the base film or adhesive. Its characteristics include strong light-blocking properties but no heat insulation capability, and it typically fades within about one year. 2. Vacuum metallized film: Metal is heated to high temperatures to form vapor and evenly coated onto the base film, with a lifespan of two to three years. 3. Magnetron sputtered film: Examples include multi-layer composite metal films and ceramic films, which belong to this category and can last over 10 years. Method to determine if tint needs replacement: Observe the color of the window film - if the color fades, it indicates the film has reached the end of its lifespan and needs replacement.
6
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.