Is the BMW's internal circulation A or M?

2 Answers
EstherAnn
07/25/25 5:03pm
BMW's internal circulation is M. Here are the specific details about BMW: 1. Configuration: The new model has added front seat heating, removed the in-car CD player, and the 9-speaker audio system is no longer optional. The xDrive28i series has added a sensor-activated tailgate, front seat heating, Harman/Kardon audio, and a 16-speaker system. The M Sport Design package also includes steering wheel paddle shifters. 2. Power: The 2020 X3 will continue to be equipped with the B48 2.0T engine. The fuel consumption is 8.9L per 100 kilometers.
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OGabrielle
08/11/25 10:03pm
When I first drove a BMW, I also thought the A or M buttons on the AC were for recirculation, but later realized I was completely wrong. The recirculation button is actually the one with a small arrow icon or labeled REC, usually located in the center of the control panel. The A button turns on the automatic AC mode, where the system adjusts fan speed and temperature automatically; M might represent manual fan control in some models, but it has nothing to do with recirculation. Using recirculation mainly prevents external dust and odors from entering the car, which is especially useful in traffic jams. However, I often advise friends to check their owner's manual for details, as BMW layouts vary slightly between models, and mixing them up can affect comfort. Additionally, in winter or heavily polluted weather, turning it on appropriately can improve cabin air quality, but don’t leave it on all the time to avoid stale air. It’s good to familiarize yourself with the button’s location to avoid fumbling in urgent situations.
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