At what water submersion height should a vehicle not be driven?
3 Answers
Generally, it is recommended not to drive when the water level exceeds 20 centimeters or reaches more than half of the wheel height. Below are the recommended steps to handle a water-submerged vehicle: 1. Slow down or stop: When encountering uncertain water depths, promptly apply the brakes. Avoid hesitation while driving. Stop and observe the waterline when trucks or large vehicles pass to determine if it's safe to proceed. 2. Maintain slow and steady movement: If the vehicle is already in a deep water section, stay calm, maintain steady throttle control to avoid excessive speed, and refrain from shifting gears or stopping. Exit the area as quickly as possible. 3. Post-flood precautions: Even if the vehicle appears undamaged, it's essential to have it inspected at a repair shop to prevent potential hidden issues. After the weather clears, open the doors and place the vehicle in sunlight with a fan blowing nearby to accelerate the drying process and prevent mold growth through air circulation.
When the floodwater reaches half the height of the wheels, approximately 15 to 20 cm, I firmly stop driving. At this depth, water can easily enter the engine's air intake or exhaust pipe, potentially causing minor issues like stalling or major damage such as engine overhaul or even electrical short circuits. Waterlogged electronic components may be completely ruined. Having driven through rainforest sections, I've learned my lesson—now, I'd rather detour or wait for rescue when encountering floods. Remember, if the water level approaches the centerline of the tires, pull over immediately. Never force your way through—safety always outweighs saving time. Afterwards, promptly check the air filter and chassis to prevent hidden hazards from accumulating.
Last time I drove through a waterlogged area, the water level reached about one-third of the wheel height. I immediately stopped to assess the situation. When the water is around 10 cm deep, it can seep into the chassis, causing the air filter to get wet and clogged or leading to electrical issues, which may result in sudden engine stalling. My friend's car needed an 8,000 RMB repair after driving through deep water. Generally, the wading limit for sedans is when the water doesn't exceed the bottom of the door, while SUVs can handle slightly higher levels but still aren't reliable. When crossing water, it's advisable to proceed slowly and steadily through shallow areas. If the water level surpasses the midpoint of the tires, it's absolutely necessary to stop. Always pay attention to weather forecasts to avoid heavy rain routes.
