I own a 2016 Skoda Octavia, 2.0 TDI DSG. The car has done about 80K miles or 1.29K Kms. I took my car to a detailer shop on 27.08.2022. As soon as he pulled the floor mats, he noticed that the all carpets were wet. Not a puddle of water, but moist. The detailer was able to get most of the water out by vaccumming. Knowing that the source of the leak could be the coolant, the AC drain or rain water, I decided to not start the AC or a couple of days and observe the carpets which were now damp after the vaccumming. We get pretty great sun in India and the carpets dried out pretty much. It hasn't rained much between 2th and 1st and I only started the AC on the 1st of september and drove around for 30 odd KM. After the drive, I noticed that the carpets were wet. I have eliminated coolant from one of the factors because the coolant level hasn't dropped nor the car has shown signs of overheating. It hasn't rained much in the past few days so I have eliminated rain as well. That pretty much leaves me with AC condensaton. When I start the AC, I can see that the water starts dripping from the bottom of the car, indicating that the drain is indeed functioning. But to be on the safe side, I pulled out the carpet and applied silicone around the spot where the drain goes out of the body.

My questions to you knowlegable folks is:

1. Are there any other drains except the one below the centre console?

2. Even if that drain was leaking, is it possible that the passenger which is on the opposite side of the drain gets wet?

3. I am attributing the wet carpets at the backseat to the AC vents below the front seats carrying water which is somehow finding it's way onto the front carpets. Am I correct in making this assumption?

4. Any other things I should be looking at?

 

Thanks!

Anyone?

have you checked the pollen filter cover is correctly fitted?

10 minutes ago, skomaz said:

have you checked the pollen filter cover is correctly fitted?

You mean the pollen filter which is behind the glove box? Yes I did inspect the pollen filter cover. It had 3 tabs and all the 3 tabs were locked. I also put my hand in the cavity with the blower fan and it was dry.

Leave the carpets out and try and see where the waters coming from.

39 minutes ago, ords said:

Leave the carpets out and try and see where the waters coming from.

So disconnect battery, disconnect the seat airbag connectors, remove both front seats, remove the floor trims and then remove the carpet?

The side vents behind the rear bumper are a terrible fit and well known for letting in water, we use Butyl rubber cord to make them seal.

2 minutes ago, Crasher said:

The side vents behind the rear bumper are a terrible fit and well known for letting in water, we use Butyl rubber cord to make them seal.

A video or an Image would be helpful. Are these side vents part of the sunroof drains? My car does not have a sunroof.

They are behind the rear bumper in each side panel so bumper cover off, they are the cabin air exhaust vents... the similar part causes trouble on the Golf 7

 

On 06/09/2022 at 15:33, vaibhavyagnik said:

So disconnect battery, disconnect the seat airbag connectors, remove both front seats, remove the floor trims and then remove the carpet?

In your first post you mention lifting the carpet.

People here are just giving advice and suggestions. I don't know what's involved in removing the carpets, but if you want to solve the problem then maybe that's what you'll have to do.