What is the circular vent in Volkswagen interiors?
3 Answers
The circular vents in Volkswagen interiors were featured in early models of the Jetta and Lavida. Shape and function of the vents: The shape of the vents used in motor vehicle interiors, whether circular or square, can function normally without any impact on their usage. The primary role of the vents is to output airflow and adjust its direction. Methods for adjusting vent direction: Based on the principle that cold air sinks and hot air rises, when controlling the air conditioning vents, it is advisable to point the vents upward when using the air conditioner and downward when using the heater. Avoid directing the vents toward people and ensure they are not obstructed.
I've been driving a Volkswagen for several years, and that small round thing on the interior is the air vent adjustment knob. You can rotate it to control the airflow direction, directing it upward, downward, left, right, or toward the center. I find its design very user-friendly—simple to operate and easy to adjust with just one hand, so it doesn’t distract me while driving. Sometimes when the airflow feels uneven, I just twist it a few times, and the comfort improves immediately. For example, in winter when my feet are cold, I direct warm air downward, and in summer, I direct cool air upward to avoid blowing directly on my face. Its round shape is smooth and doesn’t poke my fingers, and the material is usually a mix of plastic and metal, making it durable and resistant to breaking. However, dust can accumulate over time, so I wipe it with a damp cloth every month to keep it smooth. This design has been consistently used across many Volkswagen models, which is quite hassle-free.
That circular component is actually the airflow adjustment knob. Based on my analysis of its internal structure, it connects to small deflectors or vanes that can alter the airflow direction angle when rotated. When you need to focus airflow on the windshield for defogging or direct warmth to footwells, simply turning it does the trick. Made from lightweight yet durable materials to prevent noise or sticking issues. I recommend avoiding forceful twisting - gentle rotation prolongs its service life. This classic Volkswagen design has remained largely unchanged for decades, embodying their function-first philosophy. Compared to complex button layouts in other brands, it offers more intuitive operation that even beginners can master. Additionally, when coordinated with the climate control system, adjusting airflow direction can improve fuel efficiency - for example, reducing upper-body airflow minimizes cold air waste, making it both eco-friendly and cost-effective.
