Is It Harmful for a New Car to Be Exposed to Rain Continuously?

1 Answers
LauraLee
07/30/25 9:14am
It is not harmful for a new car to be exposed to rain continuously. Many components of a new car are waterproofed, and new cars undergo rain tests before leaving the factory. Only those that pass the test can be delivered. However, it is important to wash the car promptly after rain exposure. In areas with severe pollution, the air contains a lot of sulfur dioxide, nitrogen oxides, and dust particles. When these rise to the clouds, they condense and form acid rain, which falls on the car body. If the car is not cleaned after prolonged exposure to rain, the paint can be damaged. Here are some maintenance tips for cars after rain exposure: Wash the car promptly: Rainwater in cities is usually acidic and may carry sticky substances. When the rainwater evaporates, these sticky substances can adhere to the car and become difficult to remove. It is advisable to take the car to a 4S shop or a professional car detailing service as soon as possible. Pay special attention to cleaning the gaps under the doors and the sludge inside the wheel hubs, ensuring these areas are kept dry. Also, clean any dirt on the car's chassis. Paint care: Rainwater often contains acidic substances that can corrode the outer glossy layer of the car paint. Additionally, rainwater carries invisible dust particles that can oxidize when exposed to sunlight. Therefore, it is best to perform a paint treatment after rain. A simple and effective method is waxing. Brake system maintenance: Most cars use a dual-circuit vacuum-assisted hydraulic braking system, and the brake fluid, which transmits braking force, is highly absorbent. If rainwater enters the brake fluid, it can cause brake failure or even complete loss of braking. During maintenance, it is crucial to check the brake fluid and any water traces on the brake discs to ensure the safety of the driver and passengers.
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