Renault stock was down 1.2 percent in early trading, the worst performer on France's benchmark CAC-40 index <.FCHI>.

Earlier on Monday, Nissan - in which Renault holds a 43 percent stake - said it would issue an explanation about its emissions measurement methods at 0800 GMT.

Japanese companies have admitted to several cases of data tampering over the past year, tarnishing the country's reputation for high-quality, efficient manufacturing.

(Reporting by Sudip Kar-Gupta; Editing by Mark Potter)

Stocks treated in this article : Renault, Nissan Motor Co Ltd