The unidentified individual admitted to having knowledge of and involvement in the illegal use of so-called defeat devices in VW diesel vehicles, the prosecutor's office said, adding the person would be treated with leniency during sentencing as a result of the statements.
The defeat devices, disclosed in 2015, were used to cheat engine emissions test and triggered the biggest corporate scandal in VW's history.
Other accused individuals had contacted the prosecutor's office "to make confessional statements," the office added.
A total of 60 people are under investigation for aiding and abetting fraud, breach of trust and aiding and abetting breach of trust, prosecutors said.
Continental declined to comment.
In November 2021, the public prosecutor's office expanded its investigations into the VW diesel scandal to include former top managers at Continental.
Continental ranks No. 8 on the Automotive News Europe list of top 100 global suppliers, with 2021 sales to automakers of $22.4 billion.