Planned savings and job cuts at Volkswagen could also spill over to the car maker's Bundesliga football club Wolfsburg, Volkswagen Group CEO Oliver Blume has said.

"We also need to make improvements at VfL Wolfsburg. We are already doing that, and we will review everything at the end of the season. I think it's only fair to do so," Blume told broadcasters RTL/ntv.

Blume did not say whether the savings would also impact their sponsorship of the German national team.

The Volkswagen Group said in its latest financial report that it plans to cut 50,000 jobs in Germany by 2030.

The Wolfsburg club is fully owned by the Volkswagen AG. The team won the Bundesliga in 2009 and the German Cup in 2015 but is now struggling in second last place in deep relegation trouble.

"We are in a critical situation with VfL Wolfsburg. The team is better than its position in the table; we have lost many games very unluckily," said Blume.

"We have to think positively now and then, at the end of the season, we will of course consider how to proceed. VfL Wolfsburg is a Volkswagen club and will remain so in the future."

Wolfsburg parted ways with coach Daniel Bauer and managing director for sport Peter Christiansen on Sunday. Dieter Hecking returned as their third coach of the season on a contract until June 30, having previously been in charge 2013-2016.