How to Defog the Sylphy?
4 Answers
The methods to defog the Sylphy are: 1. Press the front defroster button. When the outside temperature is above -5°C, the air conditioner will automatically turn on to defog the windshield, and the air recirculation mode will automatically turn off; 2. Use a professional defogging agent. Apply it to the inner surface of the car glass and wipe it clean, which can prevent the formation of a fog layer caused by water vapor condensation on the glass. In addition, you can also make your own anti-fog solution by mixing dishwashing liquid with water or soapy water, applying it to the glass, and letting it dry to form a thin film that prevents fog from sticking to the glass, thus serving as an anti-fog measure. The dimensions of the Sylphy 2021 Classic 1.6XE Manual Comfort Edition are 4631mm in length, 1760mm in width, and 1503mm in height, with a wheelbase of 2700mm. It is a 4-door, 5-seat sedan, powered by a 1.6L inline 4-cylinder engine, with a top speed of 186 km/h.
When driving my kids to school, I often encounter fogging on the windshield and have figured out a few practical solutions. The easiest way is to turn on the air conditioning defogging mode. The Sylphy has a defogging button with a fan shape and waves—activating it automatically starts the AC compressor and external circulation, with cold air quickly dispersing the fog in just a few blows. If I'm in a hurry, cranking up the AC airflow directly at the glass works even faster. In winter, I make it a habit to start the car five minutes early, setting the temperature around 25 degrees Celsius and using warm air to slowly dry the windshield while leaving a small window gap for ventilation. Don’t forget to keep a dry cloth handy for emergencies—a quick wipe when parked is more effective than anything. Using windshield washer fluid with anti-fog agents and avoiding smoking in the car can prevent 80% of fogging issues.
After three years of driving the Sylphy, I've found that the key to defogging is controlling the temperature difference between inside and outside. Fog forms when warm, humid air inside the car condenses on the cold glass, so you either need to cool it down or heat it up. Cold defogging works quickly—press the fan-shaped button with 'MAX' on the center console, and the AC will immediately dehumidify at maximum fan speed, lowering the cabin temperature by about 5-6 degrees. Hot defogging is better for winter—turn the temperature knob to the red zone, set the vents to windshield mode, and wait patiently for five minutes. The crucial step is turning on the AC button—even though it's a cooling switch, its dehumidifying effect is amazing. Another tip: switch the AC to external circulation before parking and turning off the engine, and the chance of fogging up next time you start the car will be much lower. Also, remember to replace the AC filter regularly—a clogged filter can cut defogging efficiency in half.
Last week during heavy rain, I was driving my Nissan Sylphy on the highway when sudden fogging became extremely dangerous. I instantly hit the defog button (the one with the fan symbol), and within two seconds, the fan speed automatically maxed out while the AC light also turned on. Don't panic if the rearview mirror fogs up—just press the REAR button, and the electric heating wires will clear the mirror in three minutes. For light fogging, cracking opposite windows by three fingers' width for cross-ventilation works too. If temporarily parked, turn on hazard lights and quickly wipe the inner glass with a tissue. The safest habit is activating defogging along with wipers—keeping glass fog-free in rain is what truly matters.
