The driver's floor area in my 2005 S60 keeps getting wet. I've checked (and had checked by a very reputable indie volvo shop) the sunroof drains and and the windshield seals. I've also checked the drainage of the cowling under the wipers. Everything seems fine.

This morning, the floor was soaking wet - but here's the catch - it hasn't rained here in about 5 days and my car has been parked under a roof at all times. I am utterly baffled as to where this water is coming from. The water also seemed to be in the center of the floor. The perimeter of the carpet is pretty dry. It is almost like someone poured a glass of water on it.

The only exposure to water that the car had was about a week ago when I drove through a fairly large puddle (it splashed on the hood). But this water just showed up today.

Open to any suggestions. This is ruining my happy relationship with my volvo!

 

Clogged drain on the A/C evap? Have you had hot weather and been running the A/C when driving?

 

Yes - have been running in fairly warm weather (north carolina) - but this problem started in the winter.

I just lifted the carpet and there is a lot of water there - several cups full! I am wondering if it was overflowing the trough around the sun roof into the headliner, then pooling there, then all flowing down suddenly when I went on a slope or something.

There really seems no other explanation why so much water would get there in such a short period of time when it hasn't been raining!!!

I am thinking of pulling the headliner tomorrow to see if it is wet inside. If it is, I might just silicone seal the sunroof shut and be done with it!

 

OK just checked the headliner - pulled it down around the sun roof - bone dry. No sign of water.

So - where is the AC evap drain located?

 

I've figured it out.

The evap drain hose is located behind the gas pedal. You have to remove a lower plastic panel to see it. The hose is black about about 6 inches long. It has a right angle curve. One end plugs into a white plastic box which houses the evaporator. The other end goes through a flexible panel to the metal of the fire wall.

My hose wasn't blocked - but the end of it that went to the fire wall had broken off. So instead of the water flowing through the hose out throw the fire wall it flowed down the interior side of the firewall into the footwell.

I have ordered a new hose. In the meantime, I just won't run the AC.

It is part #30 on this picture. Climate unit V70, V70XC, L.H.D, -2001. Fits: Volvo | Volvo Parts Webstore

The part number is 31332400. I also ordered a connector that seems to go with it.

 

Good job! I'll bet that solves your problem.

 

Good to know your problem was solved. now I have found out recently that my 2002 volvo s60 has a lead somewhere. the passenger side foot-well is soaking wet, but doesn't flood. Noticed this morning after a storm in the DFW metroplex. also after I have done work on the passenger side door. All together except for one rivet (broke on me) anybody have a clue?

 

Sunroof? If you have one, I would pour water in the gutter around the sun roof and see if it drains to the road.

You could also just check that the AC drain is flowing properly - easy to do - remove the plastic panel below the dash and pull off the black rubber tube

 

We've been noticing humidity in the car and wet floors on the passenger side. Even while it's not raining. Seems like the culprit is the AC Drain, I would love to see a diagram to know what I am looking for in cleaning out the drainage tubes, what if any tools are needed if removing the seat is necessary or desirable . Shakey youtube video and library memberships without the car repair manual promised have left me wondering how I can find a good diagram of the system that seems to be troubling many folks. If I get some written instructions I may try to make one but I could really just use the picture it's worth a thousand words.
1130

 

No tools needed - you just need to get the plastic trim off and pull back the carpet a bit. The tube is just plastic and it just clips in. Mine was broken so I ordered a new one, but as for cleaning it, just soapy water and a bit of wire would work.

The tube is on the drivers side (in my US model), behind the gas pedal.

 

I have the same problem, no one have an answer. After searching and removing all of the carpet from the car, I found water pouring in from the middle of the door sill, over the seal. I recently found the problem and have to search to fix the problem.

 

I think all Volvos with sunroofs are effected. I've had 3 XC90's a V50 and my neighbors XC60 all the drain tubes shrink.

 

I had water problems on the passenger floor with my 2008 V50 wagon. First happened after a thaw and then a rainstorm in the dead of a NE winter. With no garage but an off street parking area I had to dry my carpet (after breaking up and thawing the ice) with an oil filled electric radiator sitting in the back and a small fan blowing the warm air under the pulled up carpeting. After a couple of weekend of this all was dry and I no longer feared a mold problem. In an effort to isolate the source and buy some time until spring I bought a piece of heavy duty magnetic rubber like used for magnetic signs and cut it to fit the sun roof with a 2 inch overlap all way round. No more leaks despite several trips thru the car wash...windshield leaks ruled out. I had cleaned out the evap drain tube while I had the carpeting pulled up so I was confident that wasn't the problem. I removed the interior trim on the "A" pillars and found the drain tube pulled out of the fitting at the base of the windshield on the passenger side and just barely into the fitting on the drivers side. I bought a length of tubing, 2 couplings and some glue at the hardware store and spliced pieces in to get a proper length and glued them into the drain fitting. Rigged up a smaller tube with some air fittings so I could clear and flush the drains from the top. Became part of the maintenance routine and never had any trouble after that. I now have a 2017 V60 I bought new in September of 2019. Has anyone heard of or experienced similar problems on the newer models?