Why is there water in the car trunk?

[EdwardDella]

Possible reasons for water in the trunk are as follows; Generally, two situations can cause water ingress in the trunk. The first is leakage from the trunk seal strip. You can try using a spray test, but this requires someone to spray water from outside while another person observes from inside the trunk. The second, less common scenario is damage to the negative pressure port, which allows tire splash to enter the trunk. This is relatively rare and requires careful inspection. Additional tips: 1. Self-check for water ingress: You can perform a simple leak test by simulating rainwater flow from the roof using a garden spray bottle to identify leakage points. 2. Common leakage causes to check include: inspecting for tail light seal issues, checking the rear windshield rubber seal for leaks, examining seal strips for cracks, looking for blocked drainage holes near seals, and checking for aging or cracked metal panels.