The car does not leak when it rains, not because of its good sealing performance, but because of the reasonable design of the drainage hole. Because the location design of car drain holes is relatively hidden, many car owners have been driving for several years, and they still don't know which drain holes there are, let alone its importance.
Once the drain hole is blocked, water leakage and seepage will occur in the car. If it is light, it will damage interior panel, and if it is heavy, it will cause damage to mechanical components and engine circuit system. Therefore, today, I will introduce the location of car drain holes and daily cleaning methods, hoping to attract the attention of car owners.
1. Skylight drain hole
The skylight drain has one at each of the four corners of the skylight. It is easy to see when opening the skylight. There are four small holes, each of which is connected with a hose, connect to the front and back of the car respectively. If the drainage holes in the four corners are blocked and the accumulated water cannot be discharged smoothly, it will penetrate into the interior. If the accumulated water flows along the roof to the sunroof motor in the car, once the sunroof motor is powered on, it will often be burnt out due to short circuit.
Cleaning method: the initial blockage of the skylight drain hole will be at the entrance of the drain hole. Open the skylight and you can see it. At this time, it is better to clean it up. Just clean it yourself. After a long time, it may enter the drain hose and walk inward along the drain hose. At this time, it is not very easy to dredge. It is better to go to the 4S shop and be dredged by a professional master.
2. Engine compartment drain hole
The engine compartment drain hole is at the rear of the engine compartment, the lower edge of the windshield, and the air conditioning inlet. Engine compartment because there are many parts and less cleaning, the drainage holes are designed very wide, making it easier for sundries to enter. Because it is very close to the air conditioner air inlet, bacteria can easily breed in the stuffy cabin and affect the air quality in the car through air filter elements. In severe cases, it will flow into the car along the air inlet of the air conditioner and cause floor water accumulation.
Cleaning method: the upper cover plate needs to be removed for dredging, which is slightly more complicated.
3. Door drain hole
There are generally 1-2 door drain holes located at the lower part of the door panel. Most of the drainage holes under the door panel do not have hoses to guide, and rainwater flows directly through the door panel after rust prevention treatment. Due to the low position of the drainage hole, the drainage hole is easy to be sealed by silt for vehicles driving on the muddle Road for a long time. The owner should pay attention to the inspection. Once the drainage hole of the door is blocked, the water residue will be lifter to the window in the door panel, sound and remote control lock bring damage.
Cleaning method: the drain hole of the door can be dredged by hard objects such as iron wire, and special attention should be paid when cleaning the drain hole hidden in the rubber sealing strip to avoid damage to the sealing strip.
4. Drain hole of fuel tank cap
Open the cover plate of the fuel tank filler, and you can see that there is a drain hole in the lower part of the fuel tank cover. The seal of the fuel tank cap is not strict, and the inside is concave inside, so a drainage hole is designed. Because the vehicle is used outdoors, wind and sand will pass through the gap of the fuel tank cap and accumulate around the fuel tank cap. If the drain hole is blocked, it may be thought that the water in the fuel tank will be accumulated in the car wash or rainy weather, resulting in damage to the fuel tank.
Cleaning method: you can blow it with a high-pressure air gun or dredge it with hard objects such as iron wire.
5. Air conditioning drain hole
The air conditioning drain hole is located under the chassis. For its exact location, there are differences between different models. The water pipe of condensed water generated by automobile air conditioner in the refrigeration process is just below the chassis. After passing through sediment and water accumulation in rainy season, the drainage hole will also be blocked, and the consequences will be the same as that of the cabin drainage hole, water will flow back to the car, causing floor water.
Cleaning method: it can be done with fine iron wire when drilling under the chassis, and the dredging work is relatively simple.
6. Trunk drain hole
The trunk spare tire is so low that the vehicle body wades too high or the water will flow to this position along the interior of the vehicle body after seepage in the gap of the vehicle lamp. Due to the low efficiency of the drainage hole and the high probability of rain pouring into the car, most manufacturers will block the drainage port and unscrew or stab it when using it.
