What to Do When Driving Through Water
2 Answers
When driving through a waterlogged section, first assess whether it's passable. Always check the water level marker before entering a tunnel. Do not enter blindly without checking the water level marker. Drive slowly at low speed; never speed through. High speed can easily cause water to splash into the engine or other components. Starting the car in a large area of standing water will directly cause water to flow into the engine, and even continuously enter the cylinders through the intake pipe, causing the cylinders to fail.
When encountering a waterlogged road, my first instinct is safety first—never force your way through deep water. If the water level exceeds the midpoint of the wheel hubs, your wheels could get stuck or the engine might take in water. If crossing is unavoidable, always shift to a low gear, maintain a steady speed, and avoid stomping on the accelerator to prevent splashing. Should the car stall, never attempt to restart the engine—flooding the cylinders could destroy the entire engine, leading to costly repairs (often thousands) and serious hazards. Immediately pull over, turn off the engine, exit the vehicle, and seek higher ground while awaiting rescue. Staying inside risks drowning. Afterwards, have a professional mechanic inspect the air filter and electrical systems for water damage or corrosion. Before rainy seasons, routinely check tire tread and exhaust pipe seals. Investing in a roadside assistance membership adds peace of mind. If trouble strikes, stay calm—composure is key.
