Stefan Sommer led ZF as CEO for 5 years (Photo: ZF)

Stefan Sommer is stepping down from his position as CEO of ZF Friedrichshafen with immediate effect, the German automotive supplier said Thursday.

Sommer’s departure follows a change at the company’s supervisory board recently as well. There, Chairman Giorgio Behr stepped down late last month. He was replaced by former Volkswagen Group executive Franz-Josef Paefgen.

The moves follow widely reported disagreements between the company’s management and supervisory board on the one hand and the group’s ultimate owners, the southern German city of Friedrichshafen, on the other.

ZF said Sommer’s deputy, finance director Konstantin Sauer, will run the company until a permanent successor is appointed.

Sommer ran ZF for five years and oversaw the acquisition and integration of TRW Automotive, a move that made ZF one of the top 5 automotive supplier groups in the world.