Just got my '13 Panamera S back from dealer service on engine filter and noticed a small 1/4" bubble in the middle of the hood toward passenger side. Thought it was perhaps tree sap but it appears hard and just risen up from the hood. (pic impossible) Any ideas, thoughts? Thanks.

 

Wash.
Clay.
Wash.
Polish.
Wax/sealant.

*inspect the underside of your hood. Maybe they left a tool in there, closed the hood, and caused the hood to "dimple" out. Just a thought.