Updated at: 23-07-2022 - By: Lucas

A car with water leaks is a real pain in the rear whether it’s raining or you’re washing it. Leaks can be as minor as puddles on your windshield or as serious as large pools of water that damage your car.

In addition to the unpleasant odor and fogged windows caused by water leaks, the material in the car’s interior, mainly the substance under the floor mat, might decay. The biggest problem here is that locating the source of the leak might be difficult at times. Furthermore, getting a hold of them can be a challenge.

What are the places where water can leak into the car?

Water Leaks In Car When It Rains

Leaks can occur in almost any car due to flaws that are readily apparent. After a rain, water can appear in one or many cabins at the same time. However, if you’re not attentive or the materials you’re using wear and tear, other areas can appear over time.


In the event of a heavy downpour, the most typical cause of water intrusion is a leaky roof. In the corners of the sunroof frame, drainage holes allow rainwater to escape to the ground via hoses attached to the vehicle’s roof.

Dirt and other detritus can plug these drain holes. Water will seep inside the cabin since there is nowhere else for it to go. Depending on where the sunblind is mounted, this can occur either at the top or at the bottom of the car, in the pillars and under the glove box.

Windshield seals

Windshield seals that are cracked or worn might allow water to leak inside the car even if there is no sunroof or other water leakage issues.

Less frequently but still a possibility, it can be the cause of a windshield that has been improperly replaced or installed from the factory.

Cabin Filter

Depending on the model, cabin filters may be mounted right under the dashboard, in front of the windscreen. Automobile cabin coverings and seals must be correctly installed or broken or worn to prevent water from getting into the air duct and into the interior of the car.

Doors and windows seals

When it rains, water seeps in between the seals on the cabin’s windows and doors and ends up inside. Moisture can infiltrate the interior of a home if these aren’t correctly placed or dry out over time.

Door drainage holes

Drain holes in the road allow any water that gets in through the door’s window seal to be channeled away. It’s an issue since these openings can also become blocked, allowing water to seep in and cause damage to the structure. If the drain holes in your automobile doors are clogged, you can attempt to clean them by checking the underside of the doors.

Clogged bodily drainage pores also fall under this category. Each automobile has its own set.

Windshield drainage

The engine compartment’s windshield drainage system is prone to blockage as well. Most of the time, leaves and other large items can go in at the top, while dirt and debris collect at the bottom.

As a result, the car’s interior will become saturated with moisture. Therefore, it is recommended that it be checked and cleaned regularly on a regular basis.

Heater radiator

The heating system can experience a similar issue. The coolant from the heater radiator can leak into the cat. Antifreeze’s signature sweet smell makes it simpler to locate a leak. The heater radiator valve on earlier autos also leaks.

Air conditioning drainage

Drainage can be found on the AC evaporator, which is often located on the passenger side of the dashboard. It’s a great way to keep the car dry while you’re driving. Condensation will leak into the vehicle’s interior if the evaporator drainage system becomes clogged with debris.

Water from the evaporator may be visible on the passenger-side window sill. Drain hoses can shift position and cause water to run into the vehicle rather than out, therefore they need to be checked and fastened from time to time.

Anti-corrosion hole plugs

For anti-corrosion treatment and body painting, certain cars have unique holes drilled into the underneath of the vehicle. They have been there since the car was built, and they have been plugged.

However, over time, these plugs can shift position, allowing water to enter the car through these holes, which can lead to water accumulating and leaking into the interior.

Trunk drain holes

The spare tire storage compartment often has one or two drain holes. Your trunk is guaranteed to be soaked if they become clogged.

Hood cable plug

A rubber plug seals the passageway from the car’s cabin to the engine area. Water might seep inside if the rubber seals are torn or worn out.

Body corrosion

When rust creates holes in the car’s body, this is a rare occurrence known as body corrosion. Older cars are more likely to have these little holes.

How do you eliminate the causes of water leaks inside the car?

Water Leaks In Car When It Rains-4

Rubber seals that have been placed incorrectly or that have worn out are frequently to blame. Replace them with new ones. A sealant, such as the ones listed below, could also be used to repair the windshield seal.

You can use compressed air to blow out the drains and water channels, or you can use a brush to clean them. If a component like the heating radiator is damaged, a replacement will also be necessary.

How to deal with the water inside the car?

Because cloth and paper towels are superior at absorbing water, you’ll need to utilize them for this task. The space in between the seats, the console, and the armrests is crucial. In order to ensure that all of the inside components are dry, it is best to thoroughly disassemble the interior.

Multiple heat fans can speed things up, but it’s better to use something more powerful than a hair drier for this. The heated air should be blown across the floor and seats of the car from side to side.

In order to avoid overheating, leave the doors open and the heat on for as long as possible. You can leave them for extended lengths of time if they are protected from overheating. This should get rid of any moisture that might be left.


It’s not a good idea to keep water in your car. Even though the root reason is difficult to pin down, the sooner this issue is addressed the better. Leaks, on the other hand, can go unnoticed for years before anyone realizes there’s a problem.

Leaving your car in the rain can cause major damage, as well as the growth of mold, which can be harmful to your health. In addition, wiring errors and electrical system failures are widespread. Aside from the unpleasant odor, the carpet on the floor will deteriorate, which is bad for your health.