Can a Flood-Damaged Car Be Used? What Should Be Noted?

[StAnnie]

If a vehicle has been flood-damaged, it is recommended not to drive or use it. Below is extended information about the hazards of flood-damaged cars: 1. Electronic control systems inside the car: The mixed rainwater is highly corrosive and can affect the functionality of electrical components, especially future usage. Since most cars are equipped with electronic control systems (e.g., engine ECU, ABS system, SRS system, GPS navigation, etc.), if they encounter water ingress, it can cause short circuits in the ECU's internal IC circuit board and rust spots on connector terminals. This gradually leads to rusting of metal parts, poor contact in circuits, and even short circuits that may cause burning. 2. Engine: The engine connecting rod may deform, resulting in shortened piston stroke and incomplete gas compression. The piston rings may lose elasticity or fail to seal properly, causing gas leakage. Compressed gas may leak into the crankcase. If the intake and exhaust valves do not seal properly when closed, compressed gas may leak into the intake and exhaust manifolds.