FRANKFURT--German car maker Daimler AG (DAI.XE) said Thursday it is increasing provisions for potential payments it may need to make in connection with an antitrust probe of commercial vehicle manufacturers by 600 million euros ($747.8 million).

The higher provision will hit Daimler's fourth-quarter earnings before interest and taxes, where it will be taken into account as a special reporting item, Daimler said, but doesn't affect the full-year outlook. The auto maker still expects EBIT from business to increase significantly in 2014.

Daimler is raising a provision it took in 2011. It declined to say how high the previous provision had been. It raised the provision after reviewing documents from the antitrust probe of the European Union Commission, the executive arm of the EU carrying out the investigation. The Commission delivered its statement of objections to Daimler at the end of November.

Daimler said it is cooperating with the authorities, but reviewing all options in the procedure.

Write to Frankfurt bureau at djnews.frankfurt@dowjones.com

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