Is it a problem if the windows are left open during heavy rain?

[MaryMarie]

If the car windows are left open, light rain generally doesn't cause significant issues, but heavy rain may lead to water accumulation inside the vehicle. Typically, small amounts of rainwater entering the car or even larger-scale water ingress won't damage the vehicle's internal wiring systems or affect its mechanical components. This is because automotive electrical systems are protected by sheathed wiring, making them less prone to problems. However, if you notice abnormal headlight behavior or other functional issues while driving, it's advisable to have the vehicle inspected promptly. Additional information: 1. Disinfection: After addressing water accumulation, it's recommended to perform a thorough disinfection of the interior to prevent lingering odors. If there's water on the floor mats or if moisture has seeped beneath them, or if a musty smell persists after drying, this indicates that moisture has reached the floor lining and underlying materials like foam. 2. Disinfectants: After cleaning and drying the carpets, using specialized disinfectants or alcohol for interior sanitization can help prevent bacterial contamination. If odors persist after treatment, consider using odor eliminators inside the vehicle.