What to Do When There's Water Under the Car Floor Mats?

[OEloise]

The reasons for water accumulation under the car floor mats are as follows: 1. Check if the sunroof drainage pipe is clogged. Fully open the sunroof, and you will see a groove. Slowly pour water into the groove, which is the sunroof drainage pipe, to see if the water drains out or gets blocked. The outlet of this drainage pipe should be on the A-pillar or C-pillar of the car. 2. Inspect the door drainage pipes. Similarly, open the door, and you will find many small holes at the bottom of the door, which are the drainage holes. Check if they are clogged. 3. If the air conditioning system is damaged, it may leak water into the passenger side footwell.