If a car is submerged in water but the interior is not flooded, is the engine damaged?

[ThomasFitz]

If the vehicle is submerged but the water does not reach the engine, it only means the engine is temporarily unaffected. However, the extent of damage depends on the depth of the water and whether the engine was started after being submerged. How to check the engine: Generally, if the water level reaches the height of the engine's air intake, water will inevitably enter the engine's intake system. If the engine was not running while parked (static), the internal connecting rods may remain undamaged. However, if the engine stalls during driving, is restarted, or is started after being submerged while static, the engine is likely already damaged. Even if the engine is undamaged, other components may still be at risk, such as: The transmission: Water can enter through the transmission's vent holes, mixing with the transmission fluid. In mild cases, the fluid may need replacement and cleaning. In severe cases, lack of lubrication can accelerate mechanical wear and damage electrical components, requiring a major transmission overhaul. Interior components like upholstery and carpets: If not dried promptly, they may develop mold, odors, deformation, or other damage. Electrical components: Water can cause short circuits in sensors, control units, etc. Water in the wiring may lead to rust and corrosion over time, impairing functionality.