Coolant leak. A4 B5 AFN 1.9tdi

Hey, I am new on here.
So a couple of months back i bought an Audi A4. And as time went on i noticed a coolant leak under the car. This would leak both when the car didn't run and when running.
So i picked it apart and replaced the waterpump, and the gasket on the thermostat housing, which seemed to solve the problem. After one week the car started to leak again. And this time the waterpump seems to be pretty dry, and i can't find where the leak is coming from.
So before i start to pick it apart, does anyone on here have some suggestions for where to look?
Every suggestion is greatly appreciated!
I posted a video on youtube where I'm showing the leakage https://youtu.be/EK7vToP1Mv4
Thanks

There's a hard line on the side of the ALH and BEW that runs along the block to the water pump. There's an o-ring that goes bad. I believe yours is the same.

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Thanks! I can’t find it though?, can you send some pictures of it??

It looks like it is leaking from right above the AC pump.

Ville said:

Thanks! I can’t find it though?, can you send some pictures of it??

Click to expand...

https://forums.tdiclub.com/showthread.php?t=491854

On my 1.9 ALH. I had to do this repair, took a few photos.

Ugh, looks like it must be the headgasket.

Look at what krash posted well and be sure before going further.

Get both covers off the motor. Get it up high so you see underneath. Trace the leak up to the source. If it's a head gasket (lets hope not) it would blow out, not drool, plus there would be low compression and possible oil/coolant swapping.

So i traced it back to the frost plug at the front of the engine. Had to pull of the whole timing belt and wheels. Put in a new one with some sealant, and there is no more leaks.
Thanks for all the suggestions.

That is unusual. Glad you got it fixed and thanks for the post back!