
Generally, if a car is parked outside during heavy rain, there is no major issue as normal cars have good sealing. However, parking a car outdoors during heavy rain depends on the location—avoid low-lying areas to prevent flooding. It's also important to regularly check if the vehicle's drainage channels are clogged. Places to avoid parking during heavy rain: Low-lying areas: The biggest concern during heavy rain is urban waterlogging, which can lead to vehicle flooding. Therefore, parking location should not be chosen carelessly. First and foremost, avoid parking in low-lying areas, as these are often prone to water accumulation. There are many low-lying areas, such as underground parking lots, under overpasses, downhill roads, and potholed areas, where parking could pose safety hazards.

Driving in heavy rain is such a headache. Last time I encountered a downpour, the windshield was completely blurred by the rain, and the wipers couldn't keep up, forcing me to slow down. It felt like the whole car was shaking. The tires hydroplaned several times, nearly causing a rear-end collision. Water seeped into the chassis, and since I didn't deal with it in time, the metal rusted and corroded, costing me thousands in repairs. Water getting inside the car is even more annoying—the carpets got soaked and moldy, emitting a pungent, unpleasant smell. The electrical systems also suffered; the wiper motor short-circuited once, leaving me stranded until help arrived. In short, heavy rain can accelerate a car's aging and make driving extremely dangerous. It's advisable to check the seals after rain, avoid flooded areas, and always prioritize safety.

Heavy rain can cause significant long-term damage to vehicles, as I've personally experienced as a seasoned outdoor driver. During downpours, rainwater seeps into the gaps of the car paint, easily leading to rust and peeling, especially around door seams and wheel arches. If the undercarriage gets soaked and mud isn't thoroughly cleaned, corrosion can spread to the suspension system. Once, my engine stalled due to water ingress, costing thousands in repairs. Faulty wipers can dangerously obstruct visibility. Moisture inside the car causes carpets to mold and breed bacteria; I've even dealt with moldy AC filters that were a nightmare to clean. Regularly check tire treads to prevent water accumulation. Frequent car washes during rainy seasons to remove mud and sand can significantly extend your vehicle's lifespan.

Driving in heavy rain is most feared for blurred vision and skidding issues, which I've helped a friend deal with in a similar accident. Raindrops hitting the windshield reduce visibility to just a few meters, and worn-out wipers become useless. Wet roads extend braking distances, making it easy to skid or lose control when braking, especially during high-speed lane changes. Once entering flooded areas, water entering the engine can immediately paralyze the car. Inside the vehicle, moisture may leak into electronic components, causing headlights or sensors to short-circuit and fail. For safety, slow down, maintain distance, and use fog lights—never rush or drive through deep puddles. After the rain, don't forget to check the brakes to avoid water rust buildup. A few simple steps can prevent major troubles.

From a technical perspective, heavy rain has significant impacts on vehicles, as I've tested in several cases. Water seeping into electronic circuits can cause short circuits, leading to failures in headlights, GPS, or parking sensors. Poor body sealing can result in rainwater leaking through window gaps, staining interiors and corroding audio systems or dashboards. Mechanically, water entering the engine intake can cause severe damage, requiring expensive repairs. I've also noted that when the wiper system fails, it becomes nearly impossible to see the road conditions. It's advisable to use waterproof car covers for outdoor parking, clear drainage holes in advance, regularly lubricate door locks to prevent sticking, and always dry important circuit connectors after heavy rain to reduce failure risks and extend electronic component lifespan.


