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What is the function of active grille shutters?

3 Answers
KylieLynn
07/29/25 1:03pm
About the function of active grille shutters, the relevant introduction is as follows: 1. Maintain car temperature: When the car is just started, the engine temperature is relatively low, especially in cold winter. At this time, the active grille shutters will automatically close to prevent external air from entering the engine, filling the car interior with warm air, thereby allowing the engine to reach the optimal working temperature in the shortest time. When the engine temperature reaches a certain level, the grille shutters will open to prevent the engine from overheating, thus maintaining the optimal working temperature. 2. Reduce wind resistance and improve fuel economy: If the grille shutters remain open, it will increase the car's wind resistance, thereby increasing the driving burden and fuel consumption. The automatic grille shutters will open and close appropriately based on vehicle speed and engine temperature, reducing wind resistance and improving the car's stability. Additionally, with reduced burden and the engine maintaining optimal temperature, fuel can burn more completely, thereby reducing fuel consumption.
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Hugo
08/14/25 2:22am
I think the active grille shutter is quite useful when driving. It's like a smart switch for the car, automatically opening and closing based on road conditions. At high speeds, it closes to reduce wind resistance, making the car more fuel-efficient. I've tested it during my drives and observed a fuel consumption drop of about 5%. When starting the engine in cold weather, it closes to help the engine warm up quickly, avoiding prolonged idling and fuel waste. In hot weather, it opens to assist with cooling and maintaining the engine at an optimal temperature. This feature not only improves fuel efficiency but also makes driving smoother. On long trips, I feel much more comfortable, and the noise level is slightly reduced. Without it, the car might struggle more on windy roads. It's good practice to pay attention to maintaining this component regularly, as it can extend the vehicle's lifespan.
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OLouis
10/09/25 7:29am
The active grille shutter is primarily a device designed to optimize airflow. I've observed its performance in various scenarios while driving. For instance, it automatically closes at higher speeds, effectively reducing drag and improving aerodynamic efficiency, which naturally enhances fuel economy. When the engine temperature is low, it remains closed to accelerate the warm-up process, and opens again when the temperature rises to assist with cooling. I've verified the temperature control effectiveness using dashboard data, and it indeed proves reliable. This design minimizes unnecessary energy loss, making the vehicle's overall operation smarter and more energy-efficient. In the long run, it not only saves fuel but also reduces the risk of mechanical wear. I consider it a thoughtful configuration choice.
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