As a general matter, I don't worry too much about ticking noises with our engine, the thing is a noise making machine esp. with the cowl off. Unless it's a rattle, if the car is running strong and logging clean, all is well. IMO.
E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP
F30 N55 XDrive EBII