08 Jetta's engine is obnoxiously loud
 

My 08 jetta's engine randomly started to become really loud,you cant hear it when its idling.But you can hear the difference once the car is going around 30-40 mph. any ideas?
i have a video of the noise:
i dont know if its possible to tell the difference in the video but i hope it helps.
the car sounds normal until 0:12 then you can hear the loud noise.
at 1:08-1:30 you can hear how loud it gets.

Welcome to the forum Alex. Attachment 2904

Its a pity we don't know more details about your motor.

https://volkswagenforum.com/forum/ne...gnature-34185/

If its a TDI then it sounds like you could have a camshaft and lifters on the way out.

VW and Audi TDI camshaft wear: camshaft, lifter, and bearing inspection and replacement - PD engine