Will a Car Take in Water If It's Submerged?

[McNicole]

If a car is submerged in water for half an hour, it will take in water. The water mainly enters through the throttle, windows, and trunk. Here's how to handle water ingress in a car: Turn off the engine: If the engine stalls due to water ingress during driving, immediately turn off the ignition and do not attempt to restart the engine. Move the vehicle to a safe location, preferably with the front higher than the rear, to allow water in the exhaust pipe to drain out and avoid damaging the catalytic converter and muffler. Remove the spark plugs: If it's determined that water has entered the engine, remove the spark plugs, manually cut off the fuel supply and ignition systems, and then crank the engine to expel the water. Also, check the fluid conditions in all vehicle systems; if foaming or cloudiness is observed, replace the fluids promptly.