There is some kind of leak on the passenger side of the car. The carpet is always wet. What can this be?
The most common reason for the passenger floor to be wet is a leaking heater core. Check your coolant level to see if it is getting low. Another reason, that is not so common, would be if the HVAC box drain is clogged. This would be from the air conditioning system running. If you don’t see it drip on the ground when the air conditioning has been running for a while than this could be the reason. Simple unplug the the drain with a pencil or screw driver.