Both BMW and Daimler are to idle factories in Germany due to slumping global demand.
The Frankfurter Allgemeine Sonntagszeitung at the weekend said a Mercedes closure would begin in mid-December and plants would not re-open until 12 January.
Separately BMW has announced a four-day stop at Leipzig, in eastern Germany, which builds 1- and 3-series models.
BMW said the closure would remove 2,800 cars from the schedule. Workers would be paid normal wages but would lose overtime credits built up in the past.

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