Daimler has temporarily halted deliveries of a truck engine after finding that, in certain driving conditions, its emissions of nitrogen oxide (NOx) could exceed legal limits, the company said on Sunday.

Zhejiang Geely Holding Group plans to take a major stake in Daimler, German weekly paper Bild am Sonntag reported, citing sources. Geely could become Daimler’s biggest shareholder, the paper said.