Strange noise when I press the clutch but only when AC is on

[h_laur2001]

Hello
I have an Audi A3 1.9TDI 56 plate and
today after I parked my car I heard a strange noise
I can hear it when I press the clutch mostly but only if the AC is on
sometimes the noise continues after I release the clutch
If it turn the AC off and press the clutch a few times the noise disappears.
About 5000 miles ago I have changed the flywheel kit and clutch kit
anybody help me or has an ideea about this?
Thank you and sorry if it`s allready posted this issue!