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The German champion had suffered a shocking 5-1 defeat in its previous away game three weeks ago, a result that brought an end to Niko Kovac's tenure as head coach, but it was on the right side of a thumping victory on this occasion.

Goals from Benjamin Pavard, Corentin Tolisso and Serge Gnabry put the game beyond Dusseldorf inside 34 minutes and ensured a superb first-half performance from Bayern was suitably rewarded.

With three points secured, the Bavarian side did not hit the same heights after the interval but Philippe Coutinho added a fourth goal and it has now won each of its three games under interim coach Flick, scoring 10 and conceding none.

The only surprise was Robert Lewandowski's failure to score for the first time this season in the Bundesliga, the striker having managed 16 goals in Bayern's first 11 league games.

Flick's men were ahead inside 11 minutes. A short corner from Thomas Muller found Joshua Kimmich all alone and his low cross towards Pavard found its way into the net, with uncertainty over whether the full-back or Dusseldorf's Alfredo Morales had got a touch.

Both Lewandowski and Coutinho went close before a dismal error from Dusseldorf goalkeeper Zack Steffen enabled the visitors to score a second. Under little pressure, Steffen passed the ball straight to Muller and Dusseldorf's scrambling defenders were unable to recover as Gnabry's cross was converted by Tolisso.

The game was effectively ended as a contest when Gnabry scored himself, after the influential Muller had turned Pavard's low cross into his path.

After the hosts' best spell of the game, during which Rouwen Hennings spurned a great opportunity, Lewandowksi diverted an effort wide at the near post and then saw a powerful header tipped away by Steffen.

The Poland forward did claim an assist with 20 minutes remaining, though, as he beat his man on the left of the area and clipped in a cross that narrowly evaded Muller but left Coutinho with a tap-in.