Moisture in the car: how to get rid of it? The best ways to deal with a damp car interior

Tips

Artur Owczarek

Brand Product Manager Moje AutoHe has been involved in the automotive industry for years. He is passionate about cars and detailing. On his blog, he shares his knowledge and experience, offering tips on how to effectively care for your car and extend its life.

In this article, we explain where to look for the causes of dampness and whether there is anything you can do to prevent its appearance in advance. We will tell you what to do if your car's windows fog up, when it is worth using chemicals and when to go to a mechanic.

Where does moisture in the car come from?

There may be many causes of moisture, but due to their origin, they can be divided into three groups: those resulting from operation, design errors and negligence of the vehicle user.

The worst to remove, but at the same time the easiest to diagnose, are the causes related to structural irregularities. It may be a weak point in the car, incorrectly calculated by the designers, or extremely susceptible to degradation. Then the problem becomes massive and sooner or later affects all owners of a given model and year of car. The issue is always known among experienced mechanics, so it is worth taking the car to a good specialist who will quickly neutralize the inconvenience.

The second group includes things not directly related to design defects, but to the natural process of material wear. In this case, we are usually talking about two elements: the body and any seals. Corrosion sheet metal, as well as the fact that the rubber swells, affect the possibility of water getting into the cabin. In this case, the only solution is to replace the old seal or insert a well-selected seal in the corroded place.

The third cause is, of course, human negligence. The most serious problem is the failure to monitor the patency of drainage channels, which allow excess water to be effectively drained outside on rainy days. A particularly sensitive place is the one under the windshield, where dirt and leaves collecting can cause real problems. Other, equally bad practices include neglecting to replace the cabin filter and the resulting leaks, leaving many unnecessary items in the car - e.g. clothes, and constant dampness around the carpets. In many cases, this is related to an extreme lack of care for the interior of the vehicle, especially about the upholstery and general order within it.

Moisture in the car

What can cause moisture in a car?

Each of the above groups of reasons most often has its primary cause in the failure of a given element or its susceptibility to creating moisture in the car. Places worth paying close attention to are:

• The floor, especially in the areas of the carpets - both on the passenger and driver's sides, and also for the rear rows of seats. If the floor rots, water enters the car directly from the outside.
• Frameless doors - here the fault most often lies with poorly fitting seals or windows that do not close properly. Any damage to the rubber also causes moisture to appear in the car.
• Lamp housings - this is an element unrelated to the interior of the car, but also very susceptible to moisture. If the lampshades become unsealed, water gets inside, which can cause a lot of damage to the electrical installation.
• Drain channels – both clogged and simply malfunctioning, e.g. due to a design defect of the car.
• Sunroof and roof in a convertible - it is quite obvious that when one of these elements stops functioning properly, most often in the area of ​​​​gaskets and joints, water has better access to the interior of the cabin.

Which elements influence the humidity in the car depends mainly on the shortcomings typical of a given brand. In Japanese cars, for example, it is the bodywork that needs to be taken care of first.

A preparation that prevents windows from fogging. Moje Auto Nano Anti-fog

What are the best ways to get rid of moisture?

There is no one good way to get rid of moisture. Please remember that some ad hoc methods only remove the effects, but do not change anything about the causes. They could be an example car covers, which protect the vehicle against precipitation when parked outdoors, but will not guarantee the efficiency of the seals during operation or washing. A car moisture absorber works in the same way, not solving the problem at its core, but only eliminating some of the consequences.

First of all, you need to start the fight against moisture by thoroughly airing the car, cleaning it of unnecessary things and replacing any elements that have already become damaged. It is a good idea to refresh the upholstery, change the carpets, and check the floor in the trunk. The remaining leaves must be removed from the pit. The seals in the doors and sunroof can be checked by pouring plenty of water on these places, and to check the floor, it is a good idea to go to a workshop and make a full bodywork inspection - from the floor to the doors and sills.

Moje Car Antibacterico 3in1 upholstery cleaner

Where to buy View product

Moje Auto Upholstery cleaning foam with odor neutralizer

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Moje Auto Nano Anti-steam – a preparation that prevents windows from fogging

Where to buy View product

Preparations that will help reduce moisture in the car

One of the most persistent and difficult to remove moisture-related problems is: fogging of windows in the car. To prevent this, you can use a special chemical agent applied directly to the surface of the windows and mirrors. Its effect is appreciated especially in winter, during sudden temperature changes or during rain. A similar, but slightly less effective solution for fogging windows is a window cleaner with appropriate ingredients. It is also worth mentioning that in addition to liquids, glass cleaning foams are also a good solution. Their properties are related not only to protection against evaporation, but also against appearance persistent streaks.

Fogged car window

It is essential to fight against moisture in the car. It may have a negative impact not only on the car itself, but also on the health of passengers and drivers who use it on a daily basis. You can start with cleaning and using specialized chemicals, but the best idea is to eliminate the deeper causes, if any. Finding a way to get rid of moisture in the car should become one of your priorities at the latest when you first notice that something bad is happening.