Can the engine be restarted after water ingress?

[NoraFitz]

After a vehicle has been submerged in water, it must not be restarted for the following reasons: 1. If the vehicle stalls during water submersion, it indicates that the engine has already taken in water. Since water is difficult to compress, the piston cannot reach its original top dead center position, resulting in a shorter piston stroke and a noticeably lower top dead center position. Restarting the engine under these conditions can cause the piston connecting rod to bend, and in severe cases, damage the cylinder block, leading to irreparable harm. 2. Restarting the engine after water ingress, which results in engine damage, will not be covered by any insurance compensation. Moreover, attempting to restart the engine after water submersion severely violates the principles of insurance claims, so the insurance company will not provide compensation. In such a situation, the first step should be to try to push the vehicle out of the water, then call for rescue or contact a nearby repair station to have the vehicle towed away for inspection and repair.