How are vehicle wading levels classified?
2 Answers
The six levels of waterlogged vehicles are as follows: 1. Just reaching the vehicle chassis: The water just reaches the vehicle chassis, and the vehicle floor may become damp, but the likelihood of significant water ingress is low, with minimal impact on the electrical equipment inside the vehicle. 2. Halfway up the wheels: The water reaches halfway up the wheels. Due to the vehicle's incomplete sealing, water will begin to enter the interior. For lower-bodied sedans, the water level inside may affect the seat adjustment motors and electrical components such as heating and ventilation. 3. Completely submerging the tires: The water almost completely submerges the tires. At this point, the water level inside the vehicle will fully submerge the seat cushions and the central armrest area, affecting a large number of electrical devices. 4. Reaching the engine hood: The water reaches the engine hood, and the water level inside the vehicle rises to the dashboard. Additionally, the headlights and the engine intake pipe in the engine compartment begin to take in water. 5. Submerging the engine hood: The water completely submerges the engine hood, and at this stage, almost all electrical equipment inside the vehicle will be affected by the water. 6. Submerging the roof: The water submerges the roof, affecting the vehicle's headliner and sunroof module, with no component inside the vehicle spared.
I remember that during off-road adventures, wading depth is categorized into three levels based on depth: Light wading (200-300mm), suitable for most urban SUVs to pass through small puddles—no worries if the ground clearance is high enough. Medium wading (400-500mm), common in vehicles like Jeeps or Haval H9, features higher air intake designs to prevent engine water ingress. Heavy wading (600mm and above), such as the Mercedes-Benz G-Class, includes additional sealing and waterproof systems. Vehicle grading depends on ground clearance, air intake position, and body sealing. Personally, I think it’s wise to check the manual for your vehicle’s wading rating before driving in rain—don’t exceed the limit to avoid electrical damage or stalling. After wading, wash the undercarriage to prevent rust and extend vehicle lifespan. Knowing these tips ensures a safer trip.
