3.8.1. The authorized service center, car service, a workshop
You are free to choose where it is necessary to address. And in usual workshops the qualified masters work, and some types of works and spare parts cost cheaper here. Anyway it has to be the reliable workshop.
The car which is on a guarantee should be checked in the relevant authorized service center. You can eliminate insignificant damages of a paint and varnish covering or small defects on a body in any car service (workshop), however in this case you will not be able to make a complaint on a guarantee at emergence of repeated defects.