A/C drain clogged

Volkswagen Jetta Leaky Sunroof Wet Floors

Any chance it is connected to the drain for the air conditioner ? Usually a plugged drain will dump water on the passenger side floor.
There may also be a split in a seam in the firewall or cowl where water will seep into the interior over time from a previous rain.

on the passenger side? if it is the passenger side is your heat exchanger carrying the coolant that is used to regulate the cabin temperature. it is under the dash. Usually what happens is that the condenser (heat exchanger) the drain hose coming thru the firewall inside the engine compartment (passenger side) clogs not letting drain the water removed from the cabin during the AC cooling process. then the water start to bleed thru the joints of the box enclosing the heat exchanger. the solution is to blow or vacuum the protruding drain hose to clear the water path.

Now if the soaking carpet smell like coolant the problem is different.

I agree but just wanting you to understand a little better... If you park under trees with leaves or pine straw that's what it is...It's around your windshield arm openings.. Leaves and pine straw will fall into the holes and clog up small drain hole intended to drain water from when it rains. leaves and pine straw enters the space it clogs up a little rubber drain hose. Water starts to fill up the area and when it gets high enough it will soak through the paper filter and fall on the floor to the passenger side floor board. Take the vent cover off around the windshield wipers.. usually plastic..After you have them off you will see the paper filter down in the area...The water is not draining properly and water is going through that filter and falling onto the passenger side floorboard. Try to get as much Leaves or pine straw out. Then a long skinny screw driver or wire and push it down..It will fall down under your car..You can find the little rubber hose under the car and Push up...But make sure it's clear...Pour some water in there and make sure it's draining before putting back together...also make sure that air filter is ok also...That's where your heater and AC air comes in at...

Most likely the sunroof drains are clogged. It happened to mine, the floormats and floors were soaked, especially behind the drivers side. Volvo wanted to charge me $550 to clear them out and dry out the floors. Instead I took it home, rolled down the windows, parked it in the sun and let it dry out. Then I found a mechanic who blew out the drains with compressed air for only $20. He had originally quoted me $50-100, but ended up doing it for less. He said the two back drains are clogged. You can try sticking a small flexible wire down the front two yourself, then pour water down to see if it drains properly out the bottom of the car. When I looked I didn't see the two back sunroof drains, but my mechanic said they were clogged with leaves, you might be able to clear these yourself too. I would have never guessed that it was the sunroof causing this, because you don't see the water leak around the sunroof, you only see the water backing up on the floor. Don't take it to the dealership, it's a simple job and they will rip you off.

Most likely the sunroof drains are clogged. It happened to mine (and my friend who has the same car), the floormats and floors were soaked, especially behind the drivers side. Volvo wanted to charge me $550 to clear them out and dry out the floors. Instead I took it home, rolled down the windows, parked it in the sun and let it dry out. Then I found a mechanic who blew out the drains with compressed air for only $20. He had originally quoted me $50-100, but ended up doing it for less. He said the two back drains were clogged. You can try sticking a small flexible wire down the front two yourself, then pour water down to see if it drains properly out the bottom of the car. When I looked I didn't see the two back sunroof drains (they are smaller), but my mechanic said they were clogged with leaves, you might be able to clear these yourself too. I would have never guessed that it was the sunroof causing this, because you don't see the water leak around the sunroof, you only see the water backing up on the floor. It has to do with the way the sunroof drains drain down the side panels of your car. Don't take it to the dealership, it's a simple job and they will rip you off.

drill a hole through the floor as a quick fix ,if it gets in let it out ,then check for the leak ,try under the firewall where the AC drain pipe is ,it could be the same pipe for drain water coming in from air intake vents

HI. This will occur if the heater core has ruptured(leaking). This will allow for the transfer of coolant onto the passenger side floor. Replacing the core will solve this issue.

Generally, water on the passenger side is the A/C drain tube.
Driver side generally means widshield or sun roof seal leak.
Did you wash the Mazda or did it rain prior to puddling?
Before disassembling the windshield seal, test ... with a water hose (Remove floormat and place a towel on newspapers on the driver's side floor).
There is a "smoke" test" that can more accurately find the leak. See if you local AutoZone will rent one (maybe free) to you.

under the passenger side firewall at the bottom by the floor board youll see a rubber hose or nipple, shove a rod or coat hanger inside hose until you see nothing but clear water run out. you may even use the good old water hose to flush it out
good luck