This paper investigates the effect of a period of study in Italy on the use of discourse markers (DMs) by Belgian-Dutch learners of Italian as a second language (L2). We recorded dialogical exchanges between 8 Belgian-Dutch learners of L2 Italian, before and after an Erasmus exchange of 6 months in an Italian university. The results of our investigation reveal that, both pre- and post-Erasmus, the most used DMs are sì ‘yes’, ok, allora ‘so, then’, quindi ‘then, therefore’, dunque ‘therefore’, be’ ‘well’. Our research also shows that the main effect of the period of study abroad is the increased variation of the pragmatic functions of DMs used by the L2 speakers. Whereas before the Erasmus, DMs are employed almost exclusively with an interactional function, after the Erasmus their spectrum of functions is broaden to cognitive and the meta-discursive functions. Interestingly, we also observe that after the Erasmus, some DMs are used with different non-target functions: we argue that these uses must be analyzed as interferences with the learners’ language background. We conclude the paper with some remarks on the effect of the period of study abroad on L2 fluency, analyzing the clustering of DMs with filled pauses.