What are the impacts of driving through water on a car?

[LaSara]

Driving through water can affect the car's interior and powertrain, among other things. Below is a partial introduction regarding car insurance: Components: Car insurance generally includes basic coverage and additional coverage. Basic coverage is further divided into vehicle damage insurance and third-party liability insurance. Coverage details: Vehicle damage insurance compensates for the loss of your own vehicle; third-party liability insurance covers damages to objects outside your own vehicle, such as people and public property you hit, the other party's car, etc.; passenger liability insurance compensates for injuries and property loss of people inside your own vehicle; theft insurance covers compensation when your own vehicle is stolen; zero deductible ensures 100% compensation in case of an accident. If zero deductible is not purchased, you bear 30% of the deductible for each accident.

[FranciscoDella]

Speaking of driving through water, I learned my lesson the hard way when I took my SUV through a big puddle. If the water level rises above half of the wheel, the engine's air intake can easily suck in water, causing the engine to stall immediately. My car almost bent the connecting rods that time. The key issue is that the chassis tends to rust after being submerged, especially the exhaust pipe and suspension components, which start creaking when driven. The cabin can also leak—last time, the carpet under the passenger seat was completely soaked and took three days to dry out. Electronics are even more at risk; the ABS sensor in my car failed after getting wet, and the mechanic said the circuit board had turned green. The worst part is the transmission—water can seep in through the vent holes, mixing with the gear oil like porridge. So when driving in the rain, you really have to take it easy and avoid water if possible. Repair bills can really hurt your wallet.

[VanAaliyah]

I remember last year during the rainy season, I suffered a lot when I forced my car through a waterlogged section. When the water was deep, the wheels would slip, and it felt like I had no control over the steering, which was really scary. Afterward, I took it to the repair shop for a check-up. The mechanic said there were hidden branches and stones in the water, which could easily scratch the car's paint and underbody protection. My air filter had sucked in dirty water, and the air blowing out smelled musty. The most troublesome issue was the electrical problems after the waterlogging. The mechanic spent a long time testing with a multimeter and found several sensors had poor contact due to short circuits caused by impurities in the water. He also warned me that waterlogged cars are particularly prone to various minor issues after six months, like windows sticking or headlights flickering. Now, whenever I encounter waterlogged roads, I obediently take a detour.

[VonVivienne]

Driving through flooded areas can cause significant damage to your car, and I've experienced it firsthand. The water pressure can be so strong that it washes away your license plates—my old car's front plate is still lying somewhere underwater. Water seeping into the cabin is the most annoying; the leather seats get soaked underneath, leading to mold and foul odors over time. The braking system also takes a hit—mechanics say rainwater mixed with mud and sand can get stuck in the brake discs, causing strange noises while driving. The biggest risk is the engine; if it sucks in water, it's done for. Once, I saw a stranded car in the suburbs with a mechanic dismantling the engine for major repairs. My advice? Keep a hammer in your car—it could save your life by breaking a window if you're ever trapped in floodwater.

[OMolly]

After driving through floodwater last time, the repair bill was heartbreaking. First, the air filter was completely soaked, the mechanic said it was like a waterlogged sponge and completely unusable. The most expensive part was the engine cleaning fee, because muddy water got into the intake manifold, requiring a full disassembly and cleaning. The electrical fault was the most hidden issue—the center console screen was intermittently working, and inspection revealed the BCM module was corroded from water ingress. The rust on the chassis was also troublesome, with rust spots all over the exhaust pipe connections. The mechanic showed me the transmission with an endoscope, saying water had seeped in through the vent hole and emulsified the oil, requiring a full replacement. A used car dealer even warned me that flood-damaged cars lose 30% of their value when resold. Let this be a lesson to everyone.

[OVivienne]

My neighbor's car turned into a mobile fish tank after being flooded. Water seeped in through the door gaps and soaked the floor mats, and even after half a month, you could still step on them and squeeze out water. All the car components suffered—the soundproofing material inside the door panels absorbed water and became dead weight. The mechanic said it's nearly impossible to fully drain the water trapped in the frame gaps, and over time, the metal inside rusted. The AC system was the worst—the evaporator was clogged with sludge, and the air it blew out reeked of fish. The generator bearings also got waterlogged and seized, requiring a full replacement. The transmission fluid emulsified like yogurt, and the repair costs shot up to five figures. Even after repairs, the flood-damaged car kept having issues. Now, his car always has dehumidifier boxes inside, and in summer, the AC still blows out a musty smell.