Can the engine compartment of a car be washed with water?

Actually, it is not recommended that you wash the engine with water. If you must use a high-pressure water gun to clean, you must pay attention to the following points:

1, avoid washing with water when the car is hot.

The engine temperature is too high in the hot car state. If the engine is suddenly washed with cold water, the cylinder block will be deformed and cracked, and a large amount of water vapor will appear when the engine is washed with cold water at high temperature, resulting in excessive water in the engine compartment and affecting the circuit system.

2. Keep away from the fuse box outside the engine and the driving computer.

The fuse box in the engine compartment of most models will have a prompt to remind the owner to avoid spraying water with a forced water nozzle. Although sufficient waterproof treatment has been done, the pressure of the high-pressure water nozzle is too high to flush the driving computer and fuse box area.

3, non-original headlights should pay attention to

Refit the headlights, pry open the whole headlight assembly of the original car, and then put on various high-brightness headlights. The sealing performance of the auxiliary factory headlights is often not as good as that of the original factory headlights, and fogging or water ingress occurs when the auxiliary factory headlights are installed. Therefore, the owner should try not to clean the headlight assembly position with water, and be careful not to splash water on the modified headlight when cleaning the engine compartment, so as to avoid the headlight becoming a "goldfish bowl".

4. Spark plugs

Spark plugs must not touch water. When the vehicle leaves the factory, the spark plug will be wrapped tightly, and it is generally impossible to get water. If a spark plug that is not specified by the factory is replaced, there may be some small gaps around the new spark plug. If the engine compartment is cleaned with a high-pressure water gun, the chances of water or steam entering the spark plug will be much greater. What was the result? You know that.

Therefore, the safest way is to blow the engine compartment clean with high-pressure gas. If you think there is too much dust on the engine surface, you can go to the 4S shop to find professional technicians to clean it.