How to determine a secure fording position of a car? Use the wheel. The one-second of the height from the ground to the wheel center is taken as the benchmark point. If the water is above the benchmark point, do not take the risk of fording. If the water is under the benchmark, refer to the following suggestions:
1) When you approach a flooded road and the water depth cannot be determined, you are recommended to find another route, or pull over to watch what happens to other vehicles as they drive through the water and then make your decision.
2) If the flood water does not exceed the wheel benchmark, you shall ford in the following way: before starting the car, turn off the air-conditioner and switch to the low gear, and then lightly step on the accelerator and hold it. Do not release the accelerator, or the water will be sucked into the engine due to the back pressure of the exhaust pipe, so that the engine will be severely damaged. Lightly step on the accelerator and pass through the flooded road at a steady and slow pace.
3) Keep at least one-car length of distance from the car in front of you during fording to prevent the splashing water from being sucked into the engine via the inlet. Do not drive too fast during fording. When you step heavily on the accelerator, the throttle will suck much air under big openness and the water is easy to get into the engine in this case and thus damage the engine. If the engine flames out during fording, do not try to start the engine again. At this point, the engine flames out for two reasons: improper operation or water inhaled into the engine. If you restart the engine, it will be severely damaged. The correct method is to immediately contact a professional service plant for help or find a tow truck to tow the car to the nearest 4S store.
After you pass through the flooded area, light brake applications will help the wet brake blocks and brake discs dry out quickly to ensure normal braking function.