To confirm Portuguese support, Brazilian dealers should keep the Portuguese manuals and delivery documents, the infotainment language and connectivity features, and the after-sales documents and the person responsible for communication in a single versioned record, so no one argues from different documents. List the Portuguese manuals, infotainment language, parts catalog and after-sales contact in the order attachments, and go through each localization feature on a sample vehicle before delivery. Note the Portuguese manuals and delivery documents in the order file and attach the basis for the infotainment language and connectivity features; pause the next step if the after-sales documents or the communication contact change. When finished, have the person responsible for Portuguese localization of Brazilian cars sign off, record the date of the documents used, and note any exceptions that must be cleared before the next step.
For your later review, see also What remote diagnostic support should an exporter provide for Chinese cars?. Where Portuguese localization of Brazilian cars involves import licensing or market access, the written conclusions of the destination country's competent authority and licensed agent at the time of processing take precedence.