What Causes Water Leakage in the Mazda 6 Trunk?

[CamilaFitz]

Reason: Fuel tank opening blockage; negative pressure port damage causing water to be splashed into the trunk by the tires. This scenario is unlikely, but it is recommended to check. Fuel tank opening blockage: The fuel tank cap has a drainage hole. Many cars have fuel tank openings facing upwards. If designed this way, the fuel tank cap is prone to water accumulation. Therefore, the drainage hole is essential. This is a key area to clean, as neglecting it can cause damage to the fuel tank cap and door panels. Bottom drainage hole blockage: This is an area many people tend to overlook. Since it is not frequently used, the drainage hole here is usually sealed during design and can be opened when needed.

[LeAmir]

As a Mazda6 owner, I've experienced water leakage in the trunk multiple times, primarily due to aging sealing strips. The rubber seals around the trunk harden and crack over time, especially allowing water infiltration during car washes or heavy rain. Additionally, drainage holes are prone to clogging, where accumulated leaves or dust prevent water from draining properly. The sealing rings on the taillights may also wear out, leading to water seepage—all of which require thorough inspection. If left untreated, water can soak the carpet, create musty odors, and even damage electrical wiring in the trunk. I recall discovering water stains during my last trunk cleanup and immediately checked the drainage holes, confirming debris blockage. A timely visit to the repair shop for affordable seal replacements can prevent major issues. Don’t overlook trunk edge maintenance during routine care.

[ChristianLee]

Years of experience driving a Mazda6 have taught me that there are many reasons for water leakage in the trunk. The most common issue is failed sealing strips, which develop gaps as they age. Drainage holes often get clogged with debris, causing water to back up. Additionally, improper welding or panel gaps in the body seams can let in car wash water. I recommend starting with the simple fixes: open the trunk to check if the sealing strips are soft and intact, then clear the drainage holes to prevent blockages. Neglecting these repairs can lead to rust and mold, shortening the car's lifespan. Once, during a long trip, I found my trunk soaked—turned out the rear windshield seal had loosened, letting rainwater seep in. It took just half an hour to fix. Regular checks of these small areas keep your car safe and trouble-free for years.

[StKeira]

I noticed obvious water stains in the trunk of my Mazda6, which is usually caused by aging sealing strips or clogged drainage holes. Leaks can also easily occur due to issues with body gaps or tail light seals, especially during the rainy season. It's crucial to inspect water marks early to prevent further damage, and keeping the drainage holes clean and unobstructed is key.