What Causes the Sound of Water Sloshing When Driving a Sylphy?
2 Answers
Here are the reasons for the sound of water sloshing when driving a Sylphy: 1. Blocked drainage outlets: Accumulated water due to blocked air conditioning drainage, sunroof drainage outlets, or internal drainage outlets of the four doors can cause the sound of water flowing while driving. It is recommended to first clean the drainage outlets of the doors after opening all four doors. The drainage outlets are located at the lower inner side of each door. If no abnormality is found, it is advisable to lift the original car carpet to check for any accumulated water inside the car. If there is accumulated water, it is necessary to return to the dealership promptly to handle the water accumulation and inspect for leaks. 2. Other factors: The sound could also be caused by water bottles or beverages stored inside the car. You can check under the seats, inside the glove compartment, below the rear windshield, and in the trunk for any related liquid containers.
I also encountered the sound of water sloshing while driving my Nissan Sylphy. This is most commonly caused by the accumulation of condensation in the air conditioning system. When the AC is running, moisture condenses in the evaporator box and is supposed to drain outside through a tube. However, if the drain tube is clogged or improperly positioned, water can accumulate in the box. When driving, the movement causes the pooled water to slosh around, creating a splashing sound. This issue is more likely to occur after using the AC in summer or during humid weather. I recommend checking the AC drain outlet, usually located under the chassis. If it's clogged, clearing it with a thin wire should solve the problem. Additionally, regular AC maintenance can prevent this issue and avoid potential corrosion of internal components from water accumulation. Sometimes parking on an incline can also cause poor drainage and lead to noise, so it's best to park on level ground. The Nissan Sylphy's AC system has a minor design flaw, and many owners have shared similar experiences on forums. Addressing it promptly can save you a lot of hassle.
