Hey all. I have a 99 A4 1.8t Quattro. Some how there is water getting into the rear drivers side floor. I am not talking about a little water where the floor is wet. There is standing water on my floor even on days that it doesn't rain. Has anyone else had this problem? Any suggestions as to what I can do to fix this? I took my car into my Audi dealership and they had no suggestions or ideas. Anything anyone can come up with would be a tremendous help.

 

check the drains under your battery and if you have a sunroof check those drains as well. also try to turn on your ac really high look for a sort of mist to come out of the vents, possible heater core or evaporator core

 

Sounds like its leaking from the pollen filter housing.

 

The pollen filter is on the passenger's side not the driver's side, i doubt itscoming in from the pollen filter area.Yeah first check under you battery where your pleanum drain is and blow out any crap from there, if it is leaking from there i garantee you there will be water soaking the mat on the driver's side front too. If you lift up the carpet feel under there. If there is no moisture under the driver's seat its gotta be your rear sunroof drain. Pull down the headliner until you can access the drain where it meets to the track, use a small pick and remove the white end piece off the drain. Then apply a water sealant silicone and let it dry over night then re-connect it back onto the sunroof track. That little white end piece is always the culprit if its the sunroof drain.