BMW CEO Harald Krueger returned to work last week after spending several days recovering from his fatigue-related collapse on stage at the Frankfurt auto show.
"He's back at work and feeling 100 percent fit," a BMW spokesman said.
Krueger, 49, fainted as he was talking about BMW's latest models during a news conference. It was Krueger's first high-profile event as CEO since he took over from Norbert Reithofer in May.
BMW said the fall resulted from a "moment of dizziness" and there were no serious health issues. According to some reports, Krueger felt ill before the presentation but decided to go ahead with it.
The collapse triggered a media debate in Europe over whether top executives are struggling to cope with a heavier workload in the modern business environment. Financial Times columnist Andrew Hill wrote: "I hope BMW, like other companies, has learned that recently appointed chief executives need particular support, lest they run themselves ragged in their first few months in an attempt to prove they are up to the role."