Now I’ve found a work-around:
-open the .sql script in Dreamweaver and save as Unicode file dump_1.sql
-create a new database on my local PC with Xampp and mySQL 5
-import the sql script into the new database (character of file: utf8)
-export the new database in phpMyAdmin save as dump_2.sql
-on my hosting server: delete the existing database, create new database with the same name then import the file dump2.sql -> voila!
Still question: I’ve tried on my host to import the file dump_1.sql directly but it still shows collate swedish_general_ci so I have to create the dump_2.sql on my local PC and it works.