How to remove fogged windows in a car

Sudden fogging of the Lada Granta windshield not only reduces visibility, but also causes discomfort for the driver. Every second car owner is familiar with the problem.

The personal safety of the driver and passengers depends on how quickly the cause is eliminated.

Most often, car owners do not know the real reason why the glass on their Lada Grant fogs up. Wipe it again and again with a rag, but the problem does not go away.

The retail network offers to buy all kinds of glass coatings, special chemical compositions for processing, rags, etc., but the effect is not always guaranteed.

Reasons why car windows sweat

When the windows become covered with moisture, the driver is forced to take time away from driving the vehicle and periodically wipe the glass with napkins or rags.

Car windows sweat from the inside for the following reasons:

The difference in the temperature of the environment and the interior space of the cabin. Similar phenomena occur in the cold season or early in the morning, when the air has not yet warmed up. Moisture from the air settles on surfaces in the form of condensation.
Precipitation. During snowfall and rain, the humidity level inside the car increases. Dampness penetrates into the cabin through open doors, windows, and on the clothes and shoes of the driver and passengers. The fumes come from umbrellas and wet rugs.
Radiator malfunction. When coolant leaks, a large amount of steam is generated. At the same time, the windshield fogs up, on which oily inclusions appear. It is necessary to stop and check the condition of the cooling system.
The filter, which is part of the interior air conditioning equipment, is dirty. It may be clogged with dust or oil fumes.
Consequences of washing a car at a car service center. The interior may not have been properly dried after cleaning.
Incorrectly configured climate control system or its breakdown. In such cases, the space in the cabin ceases to be dried, and damp air is pumped in.
Passengers who have consumed large amounts of alcoholic beverages. During breathing, alcohol vapors are released and settle on the windows. Alcohol absorbs water molecules, resulting in condensation.

Reviews

№	Positive
1.	Valery, 33 years old: foggy windows remind me of the need to replace the cabin filter on the Lada Granta. It causes discomfort on the way, but I turn on the stove heater and ventilation. Within 2 minutes it was gone.
2.	Gennady, 41 years old: the car always spends the night in the parking lot, there is no garage. The humidity is high and the windows are fogging up. I found a solution in the form of an aerosol from a domestic manufacturer. It is not expensive, its effectiveness has been proven.
3.	Konstantin, 39 years old: I work as a taxi driver, often orders in bad weather, rain, windows fog up instantly. I use aerosols, stove heaters, and ventilation. Sometimes I do just one thing, other times I use all three methods.
4.	Vitaly, 34 years old: I work as a foreman at a service station, and I often see heavily fogged car windows. I recommend that owners change filters promptly and buy aerosols.
5.	Ivan, 44 years old: I have long ago dealt with the problem of windows fogging up. I have my own garage, every evening I open the windows slightly at night, the car is well ventilated.
6.	Sergey, 29 years old: the car is old, the seals on the doors are damaged in places, the windows often sweat. To quickly eliminate it, I use chemical reagents.
7.	Vladlen, 38, I use the stove heater and ventilation system the old fashioned way. It always helps and I recommend it to you.
Negative
1.	Kirill, 35 years old: I don’t trust advertisements and all chemicals. I use only my own prepared solution of ethyl alcohol and glycerin.
2.	Vasily, 31 years old: tried a lot of aerosols, money wasted. A friend advised me to use plain paper. Now I always have the latest issue of the press in my salon.
3.	Igor, 34 years old: I use regular lemon, which I rub on the glass, to prevent windows from fogging up. There is always a couple in the refrigerator in reserve.

How to remove fogged windows in a car?

There are various methods to combat fogging of car windows.

There are general rules for eliminating condensation:

Adjusting the air conditioning system. It is necessary to ensure that the windows are constantly blown with warm air.
Installation of several high-quality moisture absorbers in the cabin. Sorbents effectively absorb water from the space, drying it to the required condition.
Treatment of glass with special agents that have hydrophobic properties. Even water molecules do not linger on them. Such products are produced in the form of aerosols, liquids and impregnated wipes.
Opening windows a few millimeters. The resulting air circulation ensures the evaporation of condensation from all surfaces.
Ventilation (air ventilation) and preventive drying of the interior. This helps to dry the upholstery of chairs, rugs and remove liquid accumulated in the niches.
Regular vehicle maintenance. Timely replacement of filters, sensors and valves will prevent excess moisture.

In the rain

When it rains, water penetrates into the interior of the car, which, when heated, turns into steam, settling on windows, metal and plastic in the form of tiny drops.

You can get rid of glass fogging in inclement weather in the following ways:

After starting to drive, open the windows on both sides of the car. The resulting turbulence will ensure condensation is blown off the panels.
After finishing the trip, park the car in a heated garage. If possible, leave windows and doors open to dry out the cabin.
Before planting, shake off snow and water from clothes and shoes, pack wet umbrellas in plastic bags or covers.
Before the onset of the wet season, warm up the interior with a hairdryer to remove moisture from the upholstery. When damp air penetrates, the fabric plays the role of a sorbent.

During the winter season

During the cold season, the formation of condensation complicates the already difficult road situation. In addition, there is a risk of sweat freezing and ice crusts forming on the windows.

What you can do:

Set the maximum heating temperature by directing the air flow to the front panel. Heat in the cab can be eliminated by opening the side windows.
Use special preparations against condensation formation. Modern anti-fogging solutions for car windows allow you to get rid of this phenomenon without excessive heating of the interior.
Install electrically heated panels. This will require additional costs, but they are offset by the comfort and safety of travel.

Anti-fog films

A good result in the fight against condensation is obtained by covering windows with a special film. The basis of the material is polycarbonate - a polymer with high strength, abrasion resistance and hydrophobic properties. The reverse side has microscopic notches and is smeared with transparent glue. The outer layer repels water molecules, which roll down until a visible layer of perspiration forms.

The gluing process is not particularly difficult. You need to do the following:

cut a workpiece slightly larger in size than the panel being processed;
thoroughly wash and degrease the glass, wipe it dry;
Remove the protective coating from the film, apply it to the panel, and remove air bubbles with a spatula.

Prevention of glass fogging

To avoid condensation, you should follow a few simple rules:

Before boarding the cabin in conditions of heavy rainfall, place pieces of cellophane, old linoleum or unnecessary rags on top of the mats. They will collect water from the shoes, which can then be easily removed from the interior.
Before a long trip, pre-rub the glass with mastic, glycerin or another long-acting product. Always have a supply of anti-icing and de-icing agents on your windows.
Periodically dry upholstery and rugs. Dry things can act as a sorbent for a long time.

These methods will reduce the humidity in the cabin and reduce the likelihood of windows fogging in any weather conditions.

When the windows of a car sweat, this creates certain inconveniences for the driver associated with loss of time and with safe driving. Most often, glass sweats during rain and winter. Foggy windows are often the cause of all kinds of traffic accidents. Let's figure out why car windows sweat and what to do about it?

There are many reasons why car windows fog up, and we will look at the most common of them. And as a nice addition to the article, just below watch a video with the opinions of automotive experts about why car windows sweat and what needs to be done to avoid it.

Five reasons why car windows sweat

The most common reasons why car windows sweat are:

In winter, glass sweats due to the formation of condensation when warm indoor and cold outdoor air interact. Condensation settles on the glass surface, causing the windows to fog up.
Also, windows can sweat during rain due to excess moisture - wet clothes, rugs and car seats cause windows to fog up. The stove operating in the cabin dries things, and at this time moisture settles on the car windows.
Malfunctions or contamination in the cabin filter also lead to the fact that it does not absorb moisture and dust well, and as a result, the windows in the car sweat.
Fogging of windows is also caused by a breakdown of the valve that ensures clean air enters the cabin (or a breakdown of the sensor that regulates the operation of the valve flaps).
The presence of drunken passengers in the car can also very often be the reason why the windows sweat. This occurs due to the ability of alcohol vapor to absorb moisture.

After we have figured out the reasons why car windows most often sweat, it will be easier for you to understand what to do about it and how to avoid them fogging up.

The windows of the Lada Granta fog up from the inside. What to create

Unexpected fogging of the Lada Granta windshield not only reduces visibility, but also causes discomfort for the driver. Every second car owner is familiar with the problem.

The personal safety of the driver and passengers depends on how quickly the cause is eliminated.

Most often, car owners do not know the real reason why the glass on their Lada Grant fogs up. Wiping it again and again with a rag, but the problem is not eliminated.

In the retail network they offer the purchase of various glass coatings, special chemical compositions for processing, rags, etc., but the effect is not always guaranteed.

What to do to prevent car windows from sweating in winter

Since car windows sweat quite often in winter, when buying a car it is better to choose a model with a heated glass function. It will ensure quick drying of the windows in the car interior and will significantly save time on cleaning them. Fortunately, many modern cars are equipped with such heating.

It is also recommended to periodically check the operation of the stove and fan. To get rid of foggy windows faster, you need to turn on the car's heater at the same time as the ventilation system. That is, you do not need to “drive” warm air in a circle inside the cabin, but turn on its intake from the street.

Today you can buy a special film on sale (it is usually applied in the same way as tinting) or a glass defogger - an anti-fog agent. It comes in liquid or spray form. Before using it, the glass must be washed, degreased and thoroughly dried. Next, you can apply the product, which is enough for an average of two weeks of use.

You can make an anti-fog agent yourself by mixing alcohol (preferably denatured, but regular ethyl alcohol is also possible) with glycerin in a ratio of 20:1, i.e. For 1 part glycerin, add 20 parts alcohol.

The most convenient way to apply the anti-fog agent to the glass is with a spray bottle. For example, a spray bottle of window cleaner will do.

These are not all the ways to prevent your car windows from sweating in winter. Therefore, it would be a good idea to take advantage of recommendations that help prevent fogging, for example, during rain.

Heater or air conditioner?

Many people mistakenly think that the interior heater is the most effective way to dry the glass. They turn it on full, but the effect (in some cases) is zero or almost zero.

But as soon as you turn on the air conditioner, the windows are instantly cleared of fog! Why does this happen?

Everything is very simple. The stove drives hot but moist air, resulting in a double effect:

Firstly , if it’s cold outside, a greenhouse effect is created.

Secondly , if the air in the cabin is humid, it is not dried, but circulates in a circle

The air conditioner drives precisely cold and dry air; to put it in simple words, it dries out moisture from the glass, which immediately affects visibility.

But there is one “BUT”! The air conditioning system can operate down to -5, -7 degrees, and then will not turn on automatically. That is, it will help you in the fall, but not in winter.

That is why on some cars there is a so-called “anti-fogging” system (can be turned on by a separate button), and it forcibly turns on the air conditioning system.

What to do to prevent car windows from sweating in the rain

To prevent your car windows from sweating when it rains, you need to follow these rules:

To ensure proper drying of car windows, it is necessary to ensure good ventilation inside the cabin.
To better dry the rear window, you can use an additional fan or interior heater from the cigarette lighter.
It is also necessary to promptly check the operation of the cabin filter and, if any malfunctions are found, eliminate them or change the filter.
There is no need to leave wet things in the car. If you have such things, they should be dried.
Excess moisture in the cabin, for example, puddles on the mats, also needs to be removed in a timely manner.
In addition, it is recommended, simply for preventive purposes, to periodically dry the entire interior of the car (especially during the rainy season or on the eve of winter).
To prevent the windows from fogging up when driving in the rain, it is recommended to lower the side windows of the car slightly. And after the trip, it is advisable to open the doors for a few minutes to let fresh air into the cabin.

Common ways to eliminate fogging on Lada Granta

adjusting deflectors, increasing the speed of air flow from the stove heater. If you have a pre-installed air conditioner, this task can be completed in no time;
the use of special chemicals and anti-fogging agents. Among motorists they are called “anti-foggers”.

In auto shops and car markets, the choice is quite wide, both domestic and foreign manufacturers (liquids, spray bottle, napkins).

systematic drying, purging of the interior, especially after rain, washing, and other processing;
Carrying out comprehensive diagnostics and technical inspection strictly according to schedule. Violation of intervals causes a refusal of service at the service station.
install high-quality, original filters and cleaning elements;
simultaneous activation of the stove heater and ventilation. Separately, the air will circulate only inside the cabin. The problem will not be fixed.

Methods for cleaning glass from fogging

Below are five simple tips on how to clear fogged car windows.

To clean the windshield and side windows from fogging, you must first turn on the interior heating and then direct a warm air stream onto the windows. In winter, special care must be taken, since the sudden interaction of internal hot and external cold air can lead to cracking of the glass.
When it rains, it is better to blow on the car windows with slightly warm or completely cold air. Air temperature will not affect the result.
In order to prevent the rear window from sweating, it is necessary to turn on its heating immediately after starting the engine.
It is advisable to clean windows from condensation with a minimum number of people in the car, since the exhaled air contains moisture. In this case, glass cleaning will occur faster.
If your car has an air recirculation function, you should also use it on the road to prevent the windows from sweating in the future.

And one more useful tip. In winter, to clean frozen windows, you do not need to immediately turn on the wipers - this can lead to their breakage and scratches on the glass. It is necessary to use a special non-freezing liquid to defrost ice; after spraying it, after a couple of minutes you can safely use standard windshield wiper blades or a plastic scraper.

So, let's summarize. The windows of absolutely all cars sweat, the only difference being that in some models, automakers have provided systems to prevent windows from fogging up, and in some - not. To prevent the windows in the car from sweating, the car interior must be kept clean and ventilated in a timely manner - this will ensure a comfortable and safe ride in any weather and season.

Video: why the windows in the car sweat

Publication date: August 02, 2022. Category: Automotive equipment.

Foggy windows bring a lot of inconvenience to car owners. Visibility of the road deteriorates and the risk of getting into an accident increases. Most often, people encounter such problems in rainy weather and winter. To save drivers from headaches, many manufacturers have begun to produce cars with heated windows. However, most vehicle owners are still forced to solve problems on their own.

Cloudy windows on which condensation accumulates are not always the result of weather changes or the fact that there is a tipsy passenger in the cabin. There are many other factors that, by eliminating them, can improve visibility.

Heating system malfunction

There’s something interesting to say here, without further ado, let’s start right away:

A banal reason. The stove has broken down and is not working, either the engine itself or the fuse has failed. Needs to be fixed. Next, we will assume that everything in our electrical system is working properly.
The glass sweats a lot. There is a sweetish smell in the interior and in the mats of an unknown liquid. Here you are 100% either leaking the heater radiator or some pipes - hoses. Moreover, antifreeze or antifreeze penetrates into the cabin. You need to take everything apart and look. It is worth remembering that coolants contain either propylene glycol or ethylene glycol , in fact these are “simple” alcohols; they also evaporate quickly and your windows will simply SWEAT VERY MUCH, no stove or air conditioner will help you. YES, breathing ethylene glycol vapor (which is included in the composition of various antifreezes G11, G12 and ANTIFREEZE ) is unsafe - IT IS TOXIC. So you need to quickly eliminate the leak (by the way, this can also lead to overheating of the engine)

Reasons for fogging car windows

Of course, the most obvious reason lies in condensation. When the air temperature differs greatly from the temperature inside the car, water droplets form and settle on the surface of the glass. They are covered in perspiration. Visibility may also be impaired by:

Increased humidity in the car interior. When people get into the car with wet clothes and turn on the heater in rainy weather, this leads to rapid evaporation of moisture, which settles on the surface of the windshield and side windows.
Clogged cabin filter. If this device stops absorbing moisture and dust in the required volume, then condensation will also form on the glass.
Faulty clean air supply valve. If the sensor flaps stop functioning normally, the air circulation in the car interior is disrupted.

Also, the problem may lie in the system that is responsible for some kind of drainage in the car. If the holes for removing excess water are clogged with leaves and dirt, this often provokes the appearance of perspiration on the glass.

As a rule, solving technical problems in a car helps to get rid of fogging of car windows. But sometimes the car owner simply does not have time to carry out diagnostics, or the reasons for the appearance of perspiration are related to other factors. In this case, you must follow the recommendations that will help solve the problem.

Which tips are least effective?

There are several recommendations that should help get rid of perspiration. Some of the tips are ineffective, so there is no point in wasting time on them:

Get into the car only in clean shoes, so as not to bring excess dampness into the cabin. Anyone who has ever sat in a car in winter or during heavy rain understands perfectly well that it is simply impossible to completely clean your boots in such a situation. The only way is to wear galoshes or shoe covers outside. Agree, few people want to become such a “fashionist”, much less offer such solutions to car passengers.
Use rubber mats. All the water from the shoes accumulates on them, which can easily be poured onto the street. These products better protect the underbody of the car from corrosion. However, while the car enthusiast waits for the snow on the tread of the boots to melt and flow onto the mat, the moisture will evaporate and settle on the windows. Therefore, this also does not help to fully solve the problem.
Setting up the stove and ventilation. When it’s humid outside, many people advise simply switching the car’s standard fan to air circulation mode, which, it is believed, will become much drier after numerous runs through the stove. However, in practice, such manipulations with air recirculation lead to even more fogging.

How to get rid of perspiration

The first thing you should do is replace the cabin filter. Drivers rarely think about the fact that the service life of this element is no more than 20,000 km. Experts recommend buying new activated carbon filters. Such products perfectly purify the air and prevent chemical fumes from entering the cabin.

Other helpful tips to consider include:

There should always be clean, soft wipes in the car interior. If the windows suddenly fog up and there is no time to find the root cause of the perspiration, then you can clean the glass from the inside and point a fan at it. This will help temporarily solve the problem.

Trunk work. First of all, you should remove all wet things from the luggage compartment and generally make it a rule not to clutter it. Also, some car owners cut small openings in the side trim and cover them with plastic grilles. This drastic measure allows you to improve air exchange in the car interior.
Hood grille. If snow or dirt accumulates on it, then you should not be lazy to clean this part before each trip.
Warm up Before you start driving, especially in winter, it is recommended to first warm up the vehicle interior a little. This should be done gradually so as not to create sudden temperature changes. It is best to direct the heating to all the windows and turn it on to medium mode.

Sometimes there is no time for such manipulations. In this case, some people turn the stove on full blast and do not get the best results. To quickly get rid of perspiration, it is recommended to use special formulations.

Specialized anti-foggers

The easiest way is to purchase a special liquid and spray it on the car windows. The cost of the anti-fog agent ranges from 80 to 600 rubles, depending on the composition of the product. The cheapest drugs use glycerin. However, this liquid leaves rainbow stains on the glass.

It is better to give preference to mastic-based anti-foggers. They are more expensive, but much more effective. After covering the surface with such a product, drops of water will literally be repelled from it. The effect of such compounds is enough for several trips (up to 72 hours).

Important! Liquids of this type will only be effective if they are applied to clean, dry surfaces. Spraying anti-fog on foggy glass will not change anything.

In winter, it is more rational to use various anti-freeze and anti-ice products. They can not only be poured into glass washers, but also sprayed onto the windows from the inside of the cabin. These liquids contain alcohol, which keeps surfaces clean longer.

Some people make their own anti-foggers. To do this, just mix 20 parts of pharmaceutical alcohol and one part of glycerin. The resulting mixture is poured into a spray bottle and applied to the glass.

There are other methods, using the cheapest products, that help you forget about perspiration.

Duct system

There are also cheap folk ways to combat “fog” on glass. Ten parts of alcohol are added to one part of glycerin and applied to the glass. The old-fashioned method has a significant disadvantage. This composition leaves a greasy layer on the surface. At night, streaks greatly impair visibility and glare appears.

Some even wipe glass with tobacco.

There is also a special film that is glued on, just like when tinting a car. It is similar to the films that are used to cover the visors of motorcycle or racing helmets. But it is advisable to install it in a specialized service, otherwise bubbles will appear under the film, and the result will not please you.

In rainy autumn or winter, water or snow may enter the interior. During heating, the water evaporates and condenses on the glass. Therefore, removing moisture from the interior is very important. Shake off the snow from your feet before getting into the cabin. Clean the interior mats regularly.

Folk remedies

If there is no specialized liquid nearby, you can temporarily solve the problem using:

Shaving foams. The composition is applied in a thin layer to the glass and wiped with a clean cloth.
Lemon. For this method, you need to cut the fruit and rub it with glass pulp. After this, the surfaces are wiped with a soft cloth.
Salt. If you use this component correctly, you can achieve a good effect. Just fill a few paper bags with salt and place them next to the glasses.
Newspapers. This "grandfathered" product helps to temporarily clean glass and prevent condensation. Simply wipe the windows with thin paper.
Soap. Using it, you need to draw small squares at the four corners of the glass. After this, the entire surface is wiped with a dry cloth. This way, a thin protective film is formed on the glass, and visibility is not impaired.

The windows of the Lada Granta fog up from the inside. What to do