
The drainage hole of the Tiida chassis is located near the rear wheels. The drainage outlets on the chassis are generally the air conditioning drainage outlets. If the air conditioning drainage outlet is blocked and the air conditioning water cannot be discharged, pay attention to whether the area under your feet is soaked with water, as this may indicate a blocked air conditioning drainage hole. Drainage outlets on a car can be categorized based on their locations, including door drainage outlets, sunroof drainage outlets, air conditioning drainage outlets, fuel filler drainage outlets, and drainage outlets under the front windshield. Although the door glass is tightly connected to the sealing strip, some water may still seep through the gap between the sealing strip and the glass during rain, flowing into the door. The sunroof drainage holes are usually located at the four corners of the sunroof and can be seen when the sunroof is opened. Each drainage hole is connected to a hose that directs water to the bottom of the car for discharge. If these four drainage holes are blocked, water can seep into the interior, and if the amount is large, the entire interior may be soaked. Regularly check these areas and clean them promptly if any blockage is found. The engine compartment drainage hole is generally located near the air conditioning intake, but this area is prone to being blocked by fallen leaves, causing poor drainage. There are many wiring harnesses in the engine compartment, and if they are exposed to water for a long time, it poses a significant hazard. Additionally, accumulated water may backflow into the car through the air conditioning intake. Therefore, fallen leaves accumulated along the lower edge of the windshield should be cleaned promptly.

The drainage holes of the Tiida chassis are typically located at several key points. Based on my experience with the cars I've driven, the most common locations are along the bottom edges of the front doors and beneath the trunk lid, where small holes are designed to prevent water accumulation. I've noticed that after every car wash or rain, it's essential to check these areas. Otherwise, water can seep into the cabin, causing the carpets to mold and produce unpleasant odors, which affects driving comfort.
To locate these holes precisely, you can crouch down and use a flashlight to inspect near the door seals or the edges of the car's underbody—you'll spot the small openings. Cleaning them is straightforward; just use a thin, long rod or an air blower tool to clear any blockages.
It's important to perform regular checks, especially if you park in areas with lots of leaves. I learned this the hard way when I neglected it once, and it took me quite some time to clear the accumulated water and prevent rust issues.

As an automotive enthusiast, I've noticed the Tiida's chassis drainage holes are quite meticulously designed, primarily located beneath the front door sills and near the rear wheel arches to efficiently drain rainwater and car wash water. During my regular maintenance routines, I find these holes easily accessible - just crouch down to inspect the undercarriage and the visible apertures are apparent. If clogged with leaves or mud isn't cleared promptly, accumulated water could corrode metal components and accelerate aging. I make it a habit to clear these holes during every maintenance session using compressed air cans - a quick blast does the trick. This simple practice saves repair costs and prevents potential issues in the long run, keeping my beloved car in showroom-fresh condition.

After using our Nissan Tiida for a long time, I noticed that the chassis drainage holes are located below the doors and near the trunk. I found that kids often bring mud home on their shoes, which can easily clog these small holes. You can simply check the lowest points under the car to locate them, and clean them regularly to prevent water accumulation and rust. Otherwise, excessive moisture inside the car can affect family health, such as causing unpleasant odors from the AC vents. As a daily routine, it's recommended to check these holes by hand after driving home to ensure they're clear. Flushing them with some water occasionally can help prevent major issues.


