What Are the Effects of Rainwater Leaking into the Engine Compartment?

[Roland]

Rainwater entering the engine compartment may cause brake failure, battery short circuits, engine oil deterioration, sensor damage, and other issues. Below are the corresponding solutions and daily maintenance measures: Solutions: Disconnect the negative terminal of the battery to prevent electrical short circuits in various vehicle components due to water ingress. Inspect the engine, first checking whether water has entered the engine cylinders, as this can bend the connecting rods and damage the engine. Also, check if water has mixed with the engine oil, as this can cause the oil to deteriorate and lose its lubricating properties, leading to excessive engine wear. Additionally, inspect the transmission for water ingress, as this can contaminate the gear oil and result in gear wear. Daily Maintenance Methods: If the vehicle has been exposed to water, avoid immediately turning off the engine. Instead, let it idle for a while to evaporate any moisture from the engine, transmission, clutch, and exhaust system to prevent rust. Ideally, drive for a short distance to also dry out any water in the brakes. Regularly inspect the engine compartment for signs of water ingress.