Help Please B8.5 2.0tdi is making tapping noise from start for 5min then goes away

RenierVR

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Hi guys, I need some advice please?
My 2.0 tdi one morning when starting quite a loud tapping noise for a few minutes and then goes away mostly when hot. I have a VCDS and did a scan and some basic tests but everything on the software showed normal. When the sound fades away the car seems to still have all power and doesn’t really feel funny. But this noise does not sound good so not to sure?