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Can a Car Be Driven After Being Flooded?

2 Answers
VanNatalie
08/30/25 7:22am

It is advised not to drive or use a car after it has been flooded. It must be inspected and repaired before use. If the vehicle is flooded while stationary, the engine is generally not damaged. However, attempting to start and drive the vehicle out of the flooded area may cause engine damage. Vehicle Water Damage Inspection: Engine Inspection: Check whether water has entered the engine cylinders, as this can cause the connecting rods to bend and damage the engine. If it is determined that water has entered the engine, the spark plugs should be removed first, manually cutting off the fuel supply and ignition systems. Then, use the starter motor to crank the engine, allowing the water inside to be expelled. Check Fluid Systems: Inspect the condition of the vehicle's fluid systems to ensure that no foaming or contamination occurs due to water ingress, which could degrade the oil and reduce its lubricating properties. Additionally, water may carry sand particles, leading to excessive engine wear. In such cases, the relevant components should be cleaned promptly, and the affected fluids should be replaced. Remove Interior Items: If the water level rises above the doors, water is likely to enter the cabin. Rainwater is not clean and contains many impurities. The post-flood interior becomes an extremely humid environment, ideal for mold growth. If the vehicle is not dried promptly, mold can damage the fabric and leather upholstery.

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OLukas
09/12/25 4:20am

The moment I saw this question, it reminded me of the disastrous scene after the last heavy rain. If your car has been submerged in water, never attempt to start and drive it away directly—that's practically playing with your life. Once the water level exceeds the chassis, the electrical wiring will short-circuit due to water ingress. Even if you forcibly start the engine, water will be sucked into the cylinders, bending the connecting rods and destroying the engine. A friend of mine ignored this and insisted on driving, only to end up spending nearly twenty thousand yuan on repairs. Even after the water recedes, sand and silt can get stuck in the braking system, causing brake failure. Moreover, the interior of a waterlogged car is prone to mold and foul odors, making it particularly troublesome to deal with. The safest approach is to immediately contact your insurance company and call for a tow truck, allowing professional mechanics to thoroughly inspect the electrical system, fuel lines, and engine.

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