What is the function of the large knob in BMW?

[Cynthia]

The knob next to the gear shift in the BMW 5 Series is a multimedia selection button and volume control knob, used during media playback and unrelated to the vehicle's driving system. High-quality audio and video effects: Initially, car audio evolved from primitive mono to dual-channel output, from four-channel surround stereo to today's Dolby Digital. Audio processors have progressed from basic linear potentiometers to analog audio processors and now digital processors. The pursuit of sound quality in car audio has shifted from the system itself to the spatial sound effects tailored for specific car models, incorporating various car noise collection and noise reduction processes to achieve high-quality sound effects. Information system and high safety performance: Car multimedia is no longer limited to audio and video systems but has become a mobile multimedia terminal, essentially a mobile car PC (AutoPC).

[AlainaLee]

As a frequent driver, I particularly love the large knob in BMW cars—it's practically the central command hub of the infotainment system. Simply put, this knob allows you to effortlessly control navigation, audio, and vehicle settings: rotating it lets you browse menus, pressing it confirms selections, and tilting it left or right enables page-turning or function switching. Don’t underestimate it—the design is incredibly thoughtful. When I’m driving on the highway, I don’t need to constantly reach for the screen; just a light twist of the thumb brings up maps or switches playlists, reducing the risk of distraction-related accidents. Plus, paired with the large display, everything is clear and intuitive, making it easy even for beginners to get the hang of it. The first time I used it, I found it much more reliable than a touchscreen, with no accidental inputs. BMW’s user-friendly design also shines in the details—for example, it works flawlessly even with wet gloves on rainy days, avoiding button malfunctions. In short, this large knob makes the driving experience smoother and enhances overall enjoyment. Every time I use it, I feel it’s worth every penny—I highly recommend everyone test-drive it to experience it firsthand!

[AllieRose]

As an older car owner who sometimes finds tech features a bit unfamiliar, I must say BMW's large rotary knob is truly user-friendly. It's essentially your steering wheel companion—just a twist controls navigation prompts or adjusts radio stations, minimizing the need to glance down at the screen so your eyes stay mostly on the road. I often use it to set my home address and plan routes in advance, avoiding getting lost in the city. Plus, it's sturdy and durable, unlike smartphone screens prone to scratches, with just the right resistance to prevent accidental selections. Another perk? It integrates phone and voice controls—I've safely answered calls while driving using the knob. BMW's design team clearly understands users; this knob simplifies and enhances driving comfort, even for tech novices. It's a wise investment for stress-free commutes, and I'd recommend older peers prioritize models with such knobs when car shopping.

[DeKylie]

Every time I hit the road in my BMW, that big knob handles everything: selecting songs, setting navigation—just a few twists and it's done. This thing is like a magic wand, quickly pulling up music playlists or maps, saving me the hassle of poking around on the screen. The operation is super intuitive, easy for beginners to learn—my friend fell in love with it on the first try.