Why is there water under the car spare tire?
2 Answers
Water accumulation in the spare tire compartment of a sedan may be caused by poor sealing of the trunk rubber strip or clogged drainage pipes, allowing water to seep into the trunk during car washing or rain. If the trunk rubber strip is poorly sealed, replace it with a new one; if the drainage pipes are clogged, they need to be cleared. Here are some additional details: Solutions for trunk seal leakage: Poor sealing of the rubber strip. The waterproofing of various parts of the car body is ensured by rubber sealing strips. These rubber materials have a certain degree of strength and hardness, and under normal conditions, they do not deform. However, prolonged exposure to air will inevitably cause aging, and frequent use leads to wear, making the sealing strips fragile.
I've been driving this old car for five years and have encountered the issue of water under the spare tire several times. It's usually because the trunk's sealing rubber strip has aged or cracked, allowing water to accumulate when washing the car with a high-pressure hose. Another common cause is a clogged sunroof drain pipe, which can let rainwater flow into the backseat or directly seep into the spare tire area. Over time, the water can rust the spare tire's steel rim and even promote mold growth, leading to unpleasant odors inside the car. My suggestion is to first soak up the water with dry towels, then remove the spare tire to thoroughly dry the trunk floor. After that, carefully inspect the sealing rubber strip for cracks and replace it if necessary. Additionally, pay attention to the humidity inside the car after heavy rain and address any issues early. Regular maintenance of the sealing system can save you a lot of trouble.
