2007 Volkswagen Polo 9N3 1.4 TDI Leaking from underneath

[tacit stratus]

As for the first video, it's more as a question about what that could be? I had a better look at it and I'm sure it's just water, nothing more, but I am curious what that is? Is that a drain hole for idk.. perhaps doors or something? I really got no clue.

Now getting to the second and third videos, that's what really concerns me. As you can see that greasy, black pipe, it looks like something is dripping off of it. I've seen spots once, then I've placed some carboard just to get a better look and yes, it did drip again. Nothing too much, just like two drops over the course of 2-3 days, but I'd really love having a clue at what I'm looking at, like is that a line that runs.. diesel? Oil? Coolant? Power steering oil? Brake fluid? As for what I can check (power steering fluid, engine oil and coolant), they all seem to not have moved at all, so I'm thinking that it could either be brake fluid, transmission oil or diesel. Fuel consumption isn't huge or anything like that, as you'd expect from such a small loss (pretty sure it would be a max of a few hundred mililiters per month). So.. could anyone please help me with this? I'l try getting better pics from the middle and rear(er) the car as I think that could be of help for anyone that's trying to understand what they're looking at.

[proud tree]

Is it possible to get a picture of the leaking fluid and a description of colour, odor and texture?

[tacit stratus]

It seemed dark, but thats about all I can get from seeing the "puddle" on a cardboard box / asphalt. The cardboard mostly absorbed it so I'm not sure if I should rule out oil or not. I haven't smelled any specific odor and as for the texture.. again, can't say anything since it was absorbed in the cardboard. I could just rub my fingers on that pipe, but I am not sure if that's just grease (by the look of it).

[proud tree]

Go rub your fingers in it.

[tacit stratus]

Also, I've left the car in one place for 3 days and I only had it drop in the first night, then I moved the cardboard box to see if new drops will be there and there weren't any so I assume it's either a leak only when the car is running or it's just condensation from the AC system or something similar. I have run the AC for like 5 minutes and there was no condensation dripping at all, but I do have a video of it from last summer and I feel like it was dripping from a bit more to the right of the car, not the left.

[proud tree]

If you live in a hot place it could be ac condensate

[tacit stratus]

Not in a hot place, it's 0/negative temps, but I assumed that the air being somewhat humid and yk, the AC being on full heat would create condensation.

[tacit stratus]

This is a video from the summer, but taken from the other side.

For me it looks like it's not far enough on the left side, so I'm not sure that's where the AC is dripping condensation from.

[tacit stratus]

If it's grease-like / oily should I try my best and clean it and see if it gets like this again?

[hoary ivy]

GG @tacit stratus, you just advanced to level 3! Chat more to level up and earn top roles!

[proud tree]

If it has been doing it for 6 months without symptoms it’s most likely condensate

[tacit stratus]

no no no, it's just happened for me to have that video of the AC condensation dripping from last summer, this (about the pipe and all of the above) I have noticed about one week ago.