2005 Mk5 gti Activated charcoal filter loud tick

[Csirui03]

Hey guys, recently I did some work on my car to replace the flywheel. Upon starting and driving it for about 5 kms and returning home, I noticed a very loud ticking sound from the engine bay as I reversed into the driveway.

Upon further investigation, the noise seems to be coming from the ACF. I have owned this car for 2 years and had never heard this noise before, is this noise normal?

The car has been on the stand for about 1 month and some more before it was started which is the longest it's gone with out being driven under my ownership. Could this be what's causing the loud ticking from the ACF?

Vid of tick 💣
https://youtube.com/shorts/9vZljSuTLSk?si=xObOyNa_cVmLYYr9

[rxpx69]

No moving parts in there mate