It could be a leak that allows rainwater into the cabin or a leaking component inside the car that s causing water to leak from behind the dashboard.
Passenger side car mat soaking wet.
Passenger side carpet wet why is passenger side carpet wet.
Either way you ll want to have such a leak stopped right away to protect your car s interior.
Either the windshield seal is leaking or the condensation drain from the a c evaporator coil is plugged.
A wet floor mat or carpet can develop mold mildew and other odorous issues.
But it could be due to a bad heater core.
Causes of a wet passenger side floor mat 3.
You d be surprised how much water comes out.
That vapor condenses on the surface of the cold evaporator core and exits a drain.
This black cover is about 2 x6 in size.
When you are running your car s air conditioner in high humidity hot weather there is a whole lot of water vapor in the air.
Since this carpet has a thick foam padding the water never showed up in the carpet.
By design water can get into the inside of your car s doors either from rain or from splashing by passing cars on wet roads.
When you have an issues where you find the passenger side carpet wet that water can come from only two places.
The heater core is a small auxiliary radiator located just behind the passenger s side dashboard.
Normally any water that gets into the door will drain out onto the road but the door s drain holes can become clogged too.
The drain is generally on the engine side of the dash panel directly in front of the passenger.
This problem can seem extra mystifying when your passenger side floor mats are soaking wet and it hasn t even been raining.