So I fired up my B5S4 today to get the fluids moving and noticed that the electrical coolant circulation pump v51 would make a few 'clicking' sounds here and there... could actually feel it rattling. Not sure if that's normal due to it not running for a while or what, but if not, I can't seem to find one online. Dealer, I guess.
I thought it might just be some air bubbles being removed from the system? Normal?
Any suggestions?
Thanks.

 

See pic below...

 

Anyone?