"The priority now is to make the alliance successful, efficient and strong," Senard said during the company's shareholder meeting in Paris on Wednesday.

"There won't be any success for Renault if there is no success for the alliance."

Senard said a strengthening of the alliance would require efforts from both sides. Even though trust between the two partners had deteriorated, nothing was beyond repair, he said.

The alliance between Renault and Nissan had already been shaken by the ousting of chairman Carlos Ghosn, who is facing financial misconduct charges. Ghosn denies any wrongdoing.

Senard, who succeeded Ghosn as chairman, has been working to repair relations with Nissan. But Nissan refused to study Senard's proposed full merger with Renault and Renault has blocked governance changes at Nissan and demanded more seats on Nissan's committees.

French President Emmanuel Macron has turned down a request to meet Senard, who is furious over the government's interference at the carmaker, sources told Reuters, raising questions over Senard's future.

(This story refiles to fix format)

(Reporting by Gilles Guillaume, Editing by Inti Landauro/Richard Lough/Jane Merriman)