How to Defog a Car in Winter?

2 Answers
LaKevin
07/25/25 6:30am
Methods to defog a car in winter include: 1. Open both side windows; 2. Turn on the air conditioning's external circulation; 3. Adjust the air vents to defog mode; 4. In winter, use the air conditioning's cooling and dehumidifying function to reduce air humidity; 5. In summer, use methods to reduce temperature differences for removal; 6. Wipe with a cloth dipped in dishwashing liquid or soapy water. The reason for fogging on the interior glass in winter is: The large temperature difference between the inside and outside of the car causes the higher temperature inside the cabin to condense moisture on the inner windshield, forming fog. Methods to prevent fogging on car interior glass include: 1. Wipe with an anti-fog cloth; 2. Spray anti-fog agent in advance.
Was this review help?
3
3
Share
StAdaline
08/10/25 6:11pm
Driving in winter with foggy windows can be really annoying. I find that using the warm air to blow on the front windshield is the most effective method—turn up the temperature and increase the fan speed, while also turning on the AC for dehumidification. The defog button is a lifesaver; just press it and it’s done. For prevention, regularly clean the windows and apply anti-fog spray to reduce condensation points. Avoid placing wet clothes or hot drinks inside the car to prevent adding moisture. On cold days, warm up the engine for a few minutes before driving; when the glass temperature rises, it’s less likely to fog up. Safety first—if the fog is too thick, don’t drive; clear it completely first. Sharing years of experience, I always keep a bottle of anti-fog spray in the car, which comes in handy during business trips or long drives. Remember to switch between recirculation and fresh air modes: use fresh air to expel moisture and recirculation to retain warmth. Keep the wipers clean to prevent clogging.
Was this review help?
14
4
Share
Expand All
More Forum Discussions

What does the auto start-stop function in cars mean?

The auto start-stop function in cars refers to a system that automatically shuts off the engine when the vehicle comes to a temporary stop (such as at a red light) and automatically restarts the engine when it's time to move forward again. The core of this system lies in its ability to automatically control engine shutdown and restart, thereby reducing unnecessary fuel consumption, lowering emissions, and improving fuel economy. The auto start-stop function is primarily designed for urban traffic situations, such as waiting at traffic signals or during traffic jams, to minimize engine idling time. Additionally, when the engine is shut off, the vehicle's electrical system can take over to power the engine cooling fan and the air conditioning system, replacing the traditional belt-driven mechanism.
17
5
Share

How to Check the Water Level in a Car Radiator?

Method for checking the water level in a car radiator: Open the engine compartment when the car is cold, locate the radiator for inspection. There are MAX and MIN indicator lines on the side of the coolant reservoir. When the car is cold, if the liquid level is below the MIN line, you can add coolant until it reaches the middle between the MAX and MIN lines. The car radiator is a key component in the cooling system, with the following functions: 1. Absorb heat from the engine block to prevent overheating; 2. Use water as a heat transfer medium in the cooling circuit to conduct heat, dissipating it through large cooling fins via convection to maintain the engine's optimal operating temperature. The radiator in the engine's water cooling system consists of three parts: the inlet chamber, outlet chamber, main plate, and radiator core.
9
4
Share

Is the inspection at a 4S dealership free of charge?

Normally, inspections at a 4S dealership will incur labor fees. Below is a detailed introduction to the charges at 4S dealerships: 1. Labor fees: Automotive repair labor fees refer to the time and cost required for the repair work. As the name suggests, these fees are the labor service charges incurred due to the working time spent by the repair workers on inspecting and repairing the vehicle. Therefore, the main component of labor fees should be the cost of human labor. 2. Maintenance fees: During maintenance, only maintenance fees are charged, and incidental vehicle condition inspections are free of charge. For safety reasons, it is recommended to have inspections done at a 4S dealership. This is because the inspection items at a 4S dealership are more thorough, and accordingly, the inspection time is also longer.
18
3
Share

Can a Used China 5 Vehicle Be Licensed?

Whether in regions where the China 6 standard has already been implemented or in areas where it has not yet been enforced, used vehicles meeting the China 5 emission standards can be normally transferred and licensed. The import policies of various cities across the country have not changed, and the national policy trend is gradually lifting restrictions on used cars. Some cities have already lowered their import standards, so cross-regional transfer of China 5 used vehicles is also possible. Precautions for purchasing used cars: 1. When buying a used car, first walk around the vehicle to check if all four tires are properly inflated. 2. Observe whether the tire brands are consistent. 3. Inspect the front wheels. 4. Check the wheel bearings of the used car. 5. After the used car transaction is completed, require the buyer to promptly submit the relevant documents.
9
2
Share

Why don't original equipment manufacturers use steel braided brake hoses?

Brake steel braided hoses are constructed by replacing traditional rubber tubes with high-strength steel wire wrapping, plus an additional outer layer of wear-resistant material. During installation, the length of steel braided hoses must be appropriate—too short and they won't fit, too long and it can affect brake fluid delivery. Additional information: 1. Installation notes: Avoid sharp bends or twisting during installation, and leave sufficient length to accommodate front wheel turning. 2. Pros and cons: Standard brake hoses only have a single oil-resistant rubber layer. Steel braided hoses offer advantages like higher pressure resistance, firmer pedal feel, and improved efficiency; however, their metal braided layer is prone to metal fatigue requiring regular replacement, has poor heat dissipation, and needs to be used with aluminum multi-piston calipers or ventilation systems.
11
5
Share

Under which brand is Infiniti a product?

Infiniti is a luxury car brand under Nissan. Here is a related introduction to Infiniti: 1. Brand Introduction: As a luxury car brand under Nissan, Infiniti has been known for its unique and avant-garde design, excellent handling performance, and top-tier customer service since its inception. 2. Logo Explanation: Infiniti is also referred to as "Infinite." The Infiniti logo is primarily composed of lines. Among them, the elliptical curve represents an infinitely extending road, symbolizing infinite expansion and also signifying "the world." The two straight lines represent the path to the pinnacle, symbolizing endless development. 3. Service Features: All Infiniti products are sold and serviced through a uniformly standardized dealer network, providing consumers with an extraordinary experience of top-tier modern luxury cars.
5
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.