How to Deal with Water Accumulation Under Car Mats?

[DelLorenzo]

Check if the sunroof drainage pipe is clogged. Fully open the sunroof and pour water into the groove (the sunroof drainage pipe) to see if the water drains out. Inspect whether the door drainage pipe is blocked. Check if the air conditioning is damaged, as a faulty air conditioning system can leak water into the passenger compartment.