What causes water accumulation in the trunk of the Ford Focus sedan?

3 Answers
Lilah
07/29/25 9:49am
The following are the reasons for water accumulation in the trunk of the Ford Focus sedan: 1. Blockage: The sunroof or trunk drainage pipes are blocked; the rear drainage outlet is blocked. 2. Aging: The sunroof or trunk sealing strips have aged. 3. Damage: The trunk clips are damaged. 4. Collision: The trunk has dents from being hit. 5. Leakage: The trunk ventilation grille is leaking. The car trunk is the place where spare items and cargo are stored. 6. Functions of the car trunk: Storing miscellaneous items: Usually, large items and miscellaneous things can be placed here. Storing essentials: Generally, it includes the car's spare tire, emergency kit, onboard tool kit, warning triangle, fire extinguisher, car refrigerator, emergency fuel tank cap release cable, etc.
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StMaximus
08/13/25 11:37am
I've driven a Ford Focus sedan for several years and encountered the issue of water accumulation in the trunk. The main reason was aging or damaged sealing strips. Over time, the rubber strips harden and crack, allowing rainwater to seep through the gaps during wet weather. Clogged drainage holes are also quite common—leaves, mud, or debris can accumulate in the small drainage holes designed under the car, preventing water from draining and causing it to pool in the trunk. Another possible cause is body corrosion or poor sealing after accident repairs, leading to cracks and leaks. Prolonged water accumulation can damage the interior, cause odors, and even lead to rust affecting the car's structural integrity. At the time, I regularly checked the condition of the sealing strips and cleaned the drainage holes, such as using a small brush to clear the channels under the car, which helped a lot.
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BenjaminDella
10/06/25 8:01am
I'm the car owner, and once while washing the car, I noticed water stains in the trunk. Thinking back, water accumulation in the trunk of a Focus is often due to sealing strip issues, where the rubber becomes brittle and leaks over time. The drainage holes at the bottom of the car can easily get clogged with leaves or mud, causing water to accumulate if it can't flow out. Gaps caused by body rust or improper repairs can also lead to leaks. Standing water can cause the mat to mold and may also pose a risk of rust. I usually make sure to clean the drainage holes and check the trunk after rain to promptly dry any water stains.
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