How to Check if Water Has Entered the Car's Chassis?
2 Answers
Lift the car using tools and inspect the chassis for any signs of rust, as water ingress can lead to rust formation. The car's chassis has numerous sealing ports, primarily for connecting actuators and control components with wiring. If the sealing adhesive deteriorates, water can enter the chassis.
I've been driving for many years and often encounter issues with water entering the chassis during rainy seasons or after driving through water. The inspection method is quite simple. The most direct way is to get down, use a flashlight to check chassis components, such as the front and rear axles, exhaust pipes, and underbody guards, looking for obvious water stains, rust, or accumulated water. After driving on rainy days, park for a while and touch the metal parts of the chassis—if they feel wet or have a musty smell, it’s a sign of water ingress. Damp carpets are another indicator, especially under the front and rear seats; just lift a corner to check. Don’t underestimate water ingress—it accelerates rust and affects the suspension system, which over time could lead to accidents. I always remind myself not to drive through water deeper than half the wheel height and to check the engine bay and chassis drainage holes for blockages after washing the car. Prevention is key, and if anything seems suspicious, take the car to a repair shop as soon as possible.
