What does AC/ECO mean?

2 Answers
DeAubree
07/24/25 12:20pm
The following is the relevant introduction about AC/ECO: 1. AC: AC is the compressor switch of the car air conditioner, which is the cooling switch. To turn on the air conditioner for cooling in summer, you need to turn on the AC switch. The car air conditioner refers to the air conditioning device installed in the car, which can cool, heat, ventilate, and purify the air in the compartment, providing a comfortable riding environment for passengers, reducing the driver's fatigue, and improving driving safety. 2. ECO: ECO is the economy mode of automatic transmission cars. The ECO mode is derived from the synthesis of ecology, energy saving, and optimization. The main principle is: during the vehicle's movement, it comprehensively judges and analyzes conditions that affect fuel consumption, such as automatic transmission gear, engine speed, vehicle speed, braking, and transmission oil temperature. The ECU control unit calculates the optimal fuel amount to provide to the engine for work, effectively reducing fuel consumption compared to the normal driving mode.
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DiJasmine
08/11/25 6:27am
When I first started driving, I didn't understand these buttons either. AC is the air conditioning switch - you only get cool air when it's on. ECO is the economy mode, which makes the AC work more gently. Although it cools slower, it saves a lot of fuel. My old car burns half a liter less per 100km in city driving with ECO on. Once when stuck in a three-hour traffic jam on the highway, ECO mode noticeably extended the range. But don't use ECO during the hottest summer days - after half an hour you still won't feel cool. In that case, turn off ECO and crank up the AC for instant relief. Now I switch between them based on weather and road conditions - using AC to defog on humid rainy days, and ECO in spring/autumn to save some maintenance costs too.
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