I removed the front bumper valance to access and install a new engine air filter. Pretty easy task to save $500 charge the dealership wants for an air filter install. Upon inspection cleaning/wiping everything down and blowing all leaves and debris out with a blow gun there was a double sided machine bolt that must have previously fallen down behind the radiator and landed on the frame structure. Just curious what this bolt goes to. I’ll upload pics. Thank you in advance. 2015 Panamera 4 with 34k miles

This is the unknown bolt found below the bumper valance underneath the radiator support.

Cleaned up/new filter in and ready for valance install.

Torn apart.