VW Passat B5 - wet floor (water under the passenger's feet)

Hello.
I am the owner of the aforementioned model from 1999, I have been observing for some time that there is water on the floor under the passenger's feet next to the driver.
Once, in a heavy rain, I noticed water running in over the plastics on the door sill, but it was only a few drops.
Could this be the reason for the formation of a lake in the car?
(Pressing the palm of the hand on the carpet shows water).
I am asking for tips and advice on how to remove and prevent this vulnerability?

I once read that seals may be to blame - how to check it?
Where else have I heard that the conduit draining the condensed water from the air conditioning could have been blown (although the amount of water in the cabin is too much in my opinion)?
The last idea that comes to mind is a leaky chassis and possible leaks from the outside to the inside of the vehicle, but why is there only water here?
The car did not take part in any collisions, it was operated in a fairly calm way, no adventures with the chassis.
I am asking for help, thanks in advance for the information. GREETINGS.

at the beginning, I advise you to check the drainage of water from the air conditioning. because you write that there is a lot of this water, but you do not know when it started to pour there.

I will probably not help much, but the reason may be a clogged water drainage gutter (I do not know if it is in b5), or a rusty metal under the pit gutter. As for the removal of water, let me tell you how I did it, but please don't do it at home. Specifically, I took the Zelmer Wodnik DUO vacuum cleaner with a water filter and I was vacuuming the floor for about 15 minutes ... Until it started to pour out through the HEPA filter . Of course, it is very dangerous, because even though I have dismantled this vacuum cleaner once and the 220v is well separated from the centrifugal blades, you always have to take into account the presence of this voltage, which will gladly kill you. For others, I will also add that my brother was the initiator, who flooded the water filter with water and turned on the vacuum cleaner, which made the whole living room damp. The HEPA filter didn't care. For me, the water stood in three places (Renault Megane 1.6), and we managed to pull out about 7 liters of water!

if you unfasten the plastic on the threshold, you will lift the carpet enough to remove the water. you will not vacuum everything up. there will be not enough of it.

If you have a sunroof, check if it is leaking.
The second option is when you open the passenger door, there should be (factory) holes on the pillar where the hinges are, and originally there should be special plugs (best compare with the driver's door), if one is missing, it is very likely that it is the fault of "flooding" (I had yes in another car).
The third option is to check if the bottom door openings are not clogged. Excess water flows (e.g. on the glass) to the center of the door and this water should flow further through these openings, if they are clogged, the water will collect and overflow inside (I also encountered it in one car).
When it comes to drying it, unfortunately you will most likely have to take a few plastics apart and fold back the entire carpet from under the "passenger's feet", there will probably be 5-10 cm of hard sponge there. You have to take a wallpaper knife and cut out the entire lobe that has water in it and dry it properly at home. Since it's a hard sponge, unfortunately it will take a while. I had it this summer and it was dry for 2 days in the sun

thank you for the quick answer - I only have a few questions how to check the drainage of water from the air-conditioning and how to fix it if a possible fault is detected?
I do not have a roof damper, I will check the condition of the plugs and water drainage holes tomorrow morning.
Thank you greetings

on the passenger side in the front legs on the left side in the corner you can see this wire. black, rubber. if it is leaky it must be replaced

most often it is a damaged gasket of the pollen filter housing. The water is poured down the glass and then to the sewage gutter with a hole for the pollen filter housing. Regards

Gentlemen, in my belt, it flows through the chrome strip, which does not fit exactly to the glass, and it is together with such a seal and too much water flows into the door. And therefore I have a question, namely how to disassemble this strip. She hangs on pegs or something. Because I had lacquered the door, so there is a high probability that the painter put something together wrongly.

I was looking for this cable from the air conditioning - I did not find it I checked the plastics on the door completely, the filter - hard to define, but it seems to be dry and tight.
I noticed that with rainfall it continues, and rather not a few drops, and sometimes even a small stream flows into the cabin through the groove on the threshold (a combination of two plastic elements, some masking the threshold and some masking the interior of the vehicle, the right wheel arch from the inside). it's probably a sensation - unfortunately ...
What could be the cause of this water infiltration through this stomata / gutter? I would like to add that, on the other hand, nothing similar is happening and, as we all know, the driver's door is more exploited. Please give me suggestions / good ideas to fix / improve this vulnerability. GREETINGS

Hello,
I have a similar problem in the B3 pass. My 18 yr old has the floor wet like a baby diaper. For now, I am removing it by sticking leaflets from hypermarkets under rubber mats. Very quick measure and helps for a very short time. I can only suspect a problem with the channels draining water from the pit, but to be honest I don't know how to check them. When I look in it, I can only see a black hole - no dirt, but you know, I don't reach the end with my eyesight. This afternoon I put a few sheets of paper on the frets and on top of the front mats - if it is dripping somewhere I should pick up traces of moisture but I have to wait for something to collect. Have you tried to somehow irrigate the cars to detect leaks?

pollen filter housing for 100

Added after 3 [minutes]:

pollen filter housing for 100, as my colleague says

If water appears on the door seal, it is very likely that the round plug in the door leaf (for loosening the glass down) is leaking or missing. Water flows under the upholstery. Remove the upholstery and watch.

my friend, the reason is, as colleagues write, pollen filter housing, blocked drains in the gutter (there are 2, one under the battery base, the other under the servo), poorly replaced glass, computer housing or, as I have, an electrician and not fully sealed bulkhead wall More information and tips you will find http://forum.vw-passat.pl/threads/40108-Woda-w-car- szodzie including photos and opinions of other Passat users

I noticed another disturbing symptom, water on the rear wiper behind the passenger ... in this case I think the door seal is leaky / damaged .. I saw it does not look deformed or incomplete? all these faults appeared this winter, before the frosts, and the rest during these record frosts .. Where to look for the causes and how to deal with them?

buddy so much advice and you are still looking ??? When it comes to the rear, check if you have plugs on the bottom, in addition, as a station wagon, check at the rails.

I once had such a case in a colleague's passat - the plastic computer casing turned out to be the fault - or rather its sealing on the bulkhead wall right next to the left wheel arch. Window glue did the trick, besides, drains under the battery often clog up and an "aquarium" forms ...

My father had such a problem, we opened the hood, we look at the water in the battery compartment. we unscrewed the battery, the drainage channel was clogged, we pushed it through, the water flew and the problem is gone. :D

Greetings

I had this problem, the reason was the seals in the metal side panels of the door. If the water is running on the thresholds, remove the sides of the door with upholstery, loosen the screws of the metal sides, seal with e.g. silicone, tighten and put the upholstery on. Another reason is a clogged drain under the battery or incorrectly applied sealing rubber the tailgate lift cable.

Maybe I will add my own case
I had water under the driver's feet, I struggled with it for a long time and wondered what was going on?!?!
The reason turned out to be "unusual" (but it happened to others and that's the only reason I checked it), namely the unsealed windshield was the cause. The most reliable repair is, of course, re-gluing the glass by a specialist, but sometimes it is enough to coat the bottom edge of the glass with sanitary silicone (at the junction of the glass with the frame, so you have to disassemble the entire glass from the outside). As for the diagnosis of this case, you can often recognize it by the "wavy" sticker with the VIN number on the pit, the second method is pouring copious amounts of water with suds and blowing with a compressor (both inside and outside - if foam begins to appear, then we already know what's going on).

Buddy, check if your windshield is well glued I have a Mercedes ml 2000 year I also did not know why after washing or after driving after rain I have a lot of water on the passenger's wiper, it turned out that the windshield let water through and the windshield was original from new, it just got unsealed

Hello!
After all, he writes that water appears on the threshold. As someone wrote above, it is pouring through the metal cover of the door. Pull off the upholstery, unscrew the cover, brush the wounds with silicone and tighten.

Regards!

Well, I didn't really understand. It could be something with a door seal, or maybe it could somehow run down the glass in the middle of the door and therefore run down the threshold.

In my streak, the windows stopped working overnight. After connecting to VAG, errors popped up when I wanted to move the glass - communication error or something. When I deleted it, they didn't work anyway, but the error popped up when I wanted to move the glass. I read a bit about the cables in the threshold - shock! The cables shorted together, some cables survived and some fused together. I cut it out and started to connect the cables one by one by color, pair, twisted pair. I connected them by extending them with a new cable and fastening them with weight ankles.
When the pairs of cables ran out, I had a few brown and white-red cables left. I found a diagram and tied the cables together according to the colors to be put together on a few input wagons, i.e. brown all together and white and red together. When connecting, the connector on the red-blue cable fell apart, it was green in the center. So I got them together too.

Everything seemed to be connected and as it should be, then this is a test. And what? The panes don't work anymore. But I checked if they respond to the key and it works. But the driver's lock itself reacts strangely. To open the door, I have to turn the key clockwise twice quickly. And the windows open when you close and close when you open the door.

VAG showed such errors:
1328 Comfort function data bus
no fixture / not related to hardware
1334 Right Rear Door Control Module -J389
CAN bus no signal
1333 Left Rear Door Control Module -J388
CAN bus no signal
1332 Passenger door control module-J387
CAN bus no signal
1331 Driver's door control module-J386
CAN bus no signal

Does this apply to the blue / red wire? Who can tell me what's wrong?

Can-a or blue-red? I checked and the voltage in the ankles in relation to the mass is 12V. I will try to fasten them again or connect them with something else ..

Not all cables in the threshold burned, I do not know if I had to make some extra money for these cables. But I'll check if they're okay. The Passat is from the 96 year, 1.8T.

Ah, those leaking passats