Leverkusen started well and an early chance fell the way of the visitors, but Gonzalo Castro's shot from just outside the box went narrowly over the bar.
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Just before the half-hour mark Leverkusen's dominance paid off with the opening goal, as Castro was found inside the box by Eren Derdiyok to fire in low.
The lead became 2-0 with nine minutes of the first half remaining. After a scramble in the box Can struck a post before following in on his own rebound to score.
It continued to be one-way traffic after the break and Sebastian Boenisch probably should have extended the lead but he could only head over following a corner, but it mattered little as his side cruised to victory.