Could be your AUX belt tensioner. Just had mine replaced.
Did you get to the bottom of this?
Yes mine does I had the noise before cambelt kit was installed and still does it after new kit
Mine has something very similar, but like a tapping only on cold start. Once I've warmed it up it's gone. Really annoying
So you suspect it to be oil pump ? Are you going to get it replaced?
Judging by what other late have said it’s a common thing in the TDI VW’s and I have no fault codes. I may wait till the next timing service. I’ve sent an oil sample away to see if there’s anything to worry about. But to be honest I think I’m looking for problems