
Under normal circumstances, the car will not get flooded in heavy rain. However, during torrential rains, if the car is parked in a garage or passes through deeply flooded road sections, it may get flooded or water may enter the car if the windows are not properly closed during the rain. Below is an introduction to car wading: 1. When the car is getting flooded: If the engine stalls during the car wading process, immediately turn on the hazard lights, turn off the engine, and close the ignition. Do not attempt to restart the engine, as doing so can easily cause fatal damage to the engine, and such damage is not covered by . 2. When the car is soaked in water: If the car is stationary in a basement or parking lot and gets soaked in water, lock the car and do not attempt to start the engine. Try to seal the car as much as possible.

Last time I drove home in heavy rain, the raindrops were hitting the windows loudly, but the inside of the car stayed completely dry. This was mainly because the door seals kept the water out. Over time, these seals can age, so it's important to check for cracks or looseness. If the rain is extremely heavy and causes flooding, once the water level rises above the door panels, it's inevitable that water will seep in. That time I encountered a flood on a rural road, the water almost reached the top of the tires, and the car started dripping inside. Fortunately, I managed to drive to higher ground in time. Now, during every annual , I always ask the mechanic to check the door seals and drainage pipes to prevent these minor issues from escalating.

From a safety perspective, driving in heavy rain usually doesn't cause water to enter the car. The vehicle's designed sill panels and sealing systems effectively block rainwater. During ordinary heavy rain, water is directly diverted by wipers and drainage channels. However, in extreme situations like urban waterlogging, if the water depth exceeds 30 centimeters, it can easily backflow into the cabin. In such cases, be cautious of stalling or flooding, especially when parked in underground garages or low-lying areas—it's better to choose higher ground. Regular should include clearing the drainage holes under the doors, as accumulated and clogged rainwater can flow back into the car, affecting electronic devices.

As a frequent long-distance driver, I've experienced countless heavy rains, but water ingress in the car is quite rare. Modern vehicles have reliable rain channels and sealing designs that direct rainwater away through the grooves. However, clogged sunroof drainage holes may cause leaks. It's advisable to clear leaves and debris before the summer rainy season. During heavy rains, avoid driving through waterlogged areas. If the water depth exceeds ankle height, refrain from forcing your way through to minimize the risk of accidental water ingress.

From a structural perspective, the likelihood of water ingress during normal driving in heavy rain is low. Door gaps and splash guards serve as natural barriers, preventing rainwater from entering the interior under impact. Only in cases of severe flooding or parking in low-lying areas can water accumulate and seep into the upholstery and carpets. Extra caution is needed during urban flood seasons, as minor cases may lead to damp seats, while severe instances could cause electrical wiring damage. Regular checks of tires and drainage systems are key preventive measures.

Living in the city, I commute by car every time it rains heavily, and I've hardly ever seen water get inside the car. As long as the sealing strips are intact, rainwater is kept outside. However, turning on the wipers quickly helps to see the road conditions clearly and avoid accidentally entering deep water areas. Once, a friend parked on a low spot by the roadside, and accumulated rainwater seeped into the floor mats, causing mold inside the car, which was troublesome to clean. Therefore, it's important to choose higher ground for parking to keep the interior dry and fresh.


