How to Drive Through Flooded Roads?
3 Answers
Specific methods for driving through flooded roads: 1. Enter the water at a slow and steady speed, and do not stop while in the water. Avoid easing off the throttle; maintain a lower speed to prevent water from rushing in at the front. If the water is not too deep, use a simple low gear with slightly more throttle to pass through. 2. During heavy rain, if the windshield wipers cannot provide sufficient visibility, it is generally advisable to choose a relatively safe spot to park, turn on the width lights, and wait for the rain to lessen before proceeding. The most important thing is to determine the depth of the water; typically, the water level should not exceed two-thirds of the tire height.
After driving for so many years, I've learned to be extremely cautious when crossing waterlogged sections. First, assess the water depth—I usually eyeball it or use a branch to test. If the water reaches the exhaust pipe height or halfway up the wheels, I absolutely detour. Maintain a steady speed while driving, shift to a low gear, and proceed slowly. Keep the throttle stable—no sudden acceleration or braking—to avoid water backflow. If the current is too strong, I'd rather wait for the water to recede before proceeding. After crossing, don't rush to turn off the engine. Get out and check the engine bay and exhaust pipe for water ingress, especially the air filter—moisture there could spell trouble. Regularly inspecting the vehicle's sealing is also crucial. Before the rainy season, it's best to visit a repair shop to check the underbody protection, preventing minor issues from turning into major repairs.
As someone who frequently assists others with driving safety, I emphasize the importance of assessing risks before crossing waterlogged roads. Key points include ensuring the water depth does not exceed the height of the wheels by measuring it after getting out of the car or using tools to confirm a safe range. When driving, maintain a speed below 20km/h, keep the throttle steady to prevent stalling, and turn off the auto start-stop function to avoid unintended restarts. Absolutely avoid crossing if the water flow is too rapid. Afterwards, check electronic systems such as the ECU for any signs of water ingress. Regular maintenance of the vehicle's drainage system is also crucial, such as periodically clearing debris from chassis gaps, which can significantly reduce the risk of water ingress.
