Washing the engine compartment is quite an ordinary event, and there is nothing harmful in it if you follow certain rules. Even though the official manuals of automakers do not provide this procedure, it does not pose a danger. All components and assemblies located in the engine compartment, including electrical and electronics, are sufficiently protected from penetrating moisture because thick wet fog and abundant splashes of water are normal when driving a car in rain and slush. If washing the motor was dangerous, we would regularly encounter countless malfunctions from ordinary driving in rain. However, this, fortunately, does not happen. What does a typical engine compartment wash look like?