How to Solve Water Accumulation in the Car Spare Tire Compartment?
2 Answers
First, drain the water. There is a rubber drainage plug at the bottom of the spare tire compartment in the trunk; remove it to drain the water. Close the trunk properly, use a sponge soaked in water to pour water from top to bottom to identify the leakage point. Check if the trunk lid is deformed or if the rubber seal is aged. If the car body rubber seal is leaking, simply pull it outward slightly. Use a sponge soaked in water and gently insert a small wooden strip under the rubber seal. While pouring water, lightly scrape to remove accumulated mud inside, as this mud blockage is often the cause of the leak.
Last time I washed my car, I noticed severe water accumulation in the spare tire well, likely due to clogged drain holes. First, I removed the spare tire and all tools, then used a dry towel to soak up the water. Next, I took a wire and slowly poked it into the drain holes behind the rear bumper, clearing out lots of leaves and mud. After cleaning the drain holes, I checked the trunk seal and found some deformation at the edges, so I applied silicone-based lubricant to restore elasticity. Finally, I now use an air gun to blow out the drains monthly for prevention, and before rainy seasons, I lift the spare tire mat for inspection. Don't underestimate this water accumulation - prolonged exposure can rust through the frame.
