Berlin (AFP) - Disgruntled Germany star Thomas Muller admits he can envisage leaving Bayern Munich after failing to shine recently for the German champions.

Muller set up two goals for Germany in their 6-0 rout of Norway last Monday in a World Cup Finals qualifier, but produced another poor display on the wing for Bayern in Saturday's 2-0 league defeat at Hoffenheim.

It was his 400th appearance for the German giants.

He struggled for form in front of goal for the Bavarians last season under head coach Carlo Ancelotti and bemoaned his benching for Bayern's 2-0 draw at Werder Bremen a fortnight ago.

Despite having been at Bayern since he was 10, Muller pointed to the example of former Germany captain Bastian Schweinsteiger, who left for Manchester United in 2015 after 16 years with the Munich giants.

"Of course it is imaginable," Muller replied when asked by magazine Kicker if he could ever contemplate quitting Bayern.

In February, a Bayern official revealed the club had turned down an offer of more than €100 million (S$161 million) from United for Muller before the start of last season.

Muller's comments may well alert any of Europe's top clubs looking to boost their attack.

"When my time is over, then it is over," he said. "Someone like Schweinsteiger was here for over ten years, and now he has been gone for two years and someone else is here.

"It would be just the same for me."

Muller also had a pragmatic view on life at Bayern.

"If I fall down dead tomorrow, then there will be a funeral, but next weekend, there will be 11 players on the pitch. That's life."