"Russia is a challenge for our company and we have asked ourselves how will things go on there", Chief Executive Norbert Reithofer told reporters on Wednesday, adding that a decision about whether to build an assembly plant in the region had been postponed.

Separately, BMW's Chief Financial Officer Friedrich Eichiner said he expected a mid triple-digit-million euros windfall in 2015, from fair-value gains on derivative contracts used to hedge currency swings and commodity price fluctuations.

In the first quarter, gains from revaluing derivatives used to hedge currency amounted to a double-digit million euro amount, Eichiner said.

(Reporting by Edward Taylor; Editing by Maria Sheahan)