What are the problems with water-damaged BMWs?
1 Answers
Problems that may occur with water-damaged BMWs: Moldy interior: The most obvious and superficial issue with water-damaged vehicles is that the car's interior is highly susceptible to mold growth. Interior components are mostly made of water-absorbent materials, and rainwater contains numerous impurities and bacteria. The relatively enclosed and poorly ventilated interior space results in extremely high humidity after water exposure. In such an environment, the car's interior is prone to mold growth. If interior components are not promptly cleaned and dried, mildew spots may appear on fabric and leather surfaces, not only affecting appearance but also causing odors and increasing environmental bacteria. Engine damage: In reality, among car components, the engine has excellent sealing performance. Even if the vehicle is water-damaged, as long as the engine's air intake is not submerged, the likelihood of water entering and damaging the engine internally is minimal. However, many people may attempt to start the car and drive it out of the waterlogged area without confirming whether the engine has taken in water. If water has already entered the engine, forcing it to start can cause severe deformation of the connecting rods. Insurance companies often deny claims in such cases. Transmission failure: Unlike the engine, the transmission has numerous vent holes designed to relieve pressure from temperature changes during manufacturing, resulting in very poor sealing. If the water level rises above the engine compartment, the transmission is highly likely to take in water. Once water enters the transmission, the vehicle may experience issues like slipping, shaking, or rough shifting, potentially shortening the transmission's lifespan or even rendering it unusable. Electronic system failure: The electronic system is the most water-sensitive and widely distributed system within a car. Although most vehicles today have waterproof treatments for electronic circuits during production, the effectiveness of such treatments is very limited. When water remains above the engine compartment for an extended period, the wiring in the electronic system may gradually corrode, leading to short circuits. At this point, the failure of certain electronic devices or functions is normal. If damaged electronic system components are not replaced during repairs after a water damage incident, the vehicle may experience spontaneous combustion during subsequent driving, posing a threat to the safety of passengers.