T5 4cyl thumping noises during first start of the day

[stonestick]

Hi! Has anyone seen something like this?

Car's done 185 000km, I've driven it the last 45 000km. This issue definitely wasn't present in the beginning, I noticed it in the recent months. Thumping sound is quite intense and it sounds like it's coming from the engine compartment. It is only present during a cold start. After revs drop, everything is back to normal.