In the first German election since Europe's debt crisis erupted four years ago, voters are likely to give Angela Merkel a third term on Sunday, but may force her into a coalition with her leftist rivals and catapult a new anti-euro party into parliament.
The vote is being closely watched by Berlin's European partners, with some hoping Chancellor Merkel will soften her approach towards struggling euro states like Greece if she is pushed into a 'grand coalition' with the Social Democrats (SPD).
Voting is due to begin at 8 a.m. (0600 GMT) and the first exit polls will be published at 6 p.m. (1600 GMT). Some 62 million Germans are eligible to vote.
More top news
Ex-football manager Harry Redknapp told undercover reporters his own players bet on the result of one of their own matches, it is claimed.
A soaking then sunshine this weekend
As Hungary prepares to vote in a referendum on the EU's resettlement of refugees, thousands of migrants remain in limbo on the border.