Exportation from Switzerland

The regulations and formalities depend on whether you wish to:

 
 

Using a duty paid vehicle abroad temporarily

Vehicles with Swiss number plates can be taken abroad without customs documents (i.e. informally) and then re-imported.

General information on the temporary use of goods can be found under Temporary exportation.

When returning to Switzerland with the vehicle, you must spontaneously declare all repairs, conversions, enhancements, etc. carried out abroad to Swiss Customs at the border. Information can be found at Processing traffic

 
 
https://www.ezv.admin.ch/content/ezv/en/home/information-companies/transport--travel-documents--road-taxes/transport-regulations/ausfuhr-aus-der-schweiz.html