Bayern Munich continued their 100 percent record in the Bundesliga with a 3-0 win over Bayer Leverkusen thanks to a brace from Thomas Muller and one goal from Arjen Robben.
The German champions went in front when Muller converted a pass from Douglas Costa from from close range. And the Brazilian new arrival hit the post soon after.
Hakan Calhanoglu hit a free kick off the crossbar and Stefan Kiessling wasted a good chance to equalise, before Muller and Robben netted penalties to put the seal on the result.
Cologne came from behind to get the better of Hamburg 2-1 at the Mungersdorfer Stadion, thanks in no small part to a controversial second-half penalty decision.
Sven Schipplock stole in between some sleeping Cologne defenders and pulled the ball back for Lewis Holtby, to place his shot low into the bottom left-hand corner and give Hamburg the lead in the second half.
Philipp Hosiner then ghosted in between two defenders to turn Jonas Hector's cross in from close range to bring Cologne level, and the turnaround was complete minutes later in dubious circumstances.
Anthony Modeste lost his balance inside the penalty area under the close watch of Emir Spahic, who was adjudged to have pushed the Cologne forward and was shown a red card by the referee, who pointed to the spot. Modeste then stood up to score.
Stuttgart remained rooted to the bottom after falling to their third defeat out of three on Saturday, a 4-1 reverse at home to Eintracht Frankfurt.
The away team took the lead when Adam Hlousek turned Haris Seferovic's header into his own goal, continuing a difficult start to the season for the Swabians and their new coach Alexander Zorniger.
The hosts levelled when Geoffroy Serey Die's low cross was turned in by Daniel Didavi in an offside position, although the goal was allowed to stand. Frankfurt did not let it bother them, though, as Luc Castaignos tucked in their second on the stroke of half-time.
Things got even worse for the Swabians midway through the second half when goalkeeper Przemyslaw Tyton was sent off after he gave away a penalty, which was converted by Haris Seferovic.
Castaignos then piled on the misery with his second of the game late on, completing a 4-1 win for Frankfurt and their coach Armin Veh over his former club.
Newly promoted Ingolstadt got the better of local rivals Augsburg 1-0 to claim their second win of the season.
Markus Suttner planted a direct free-kick against the crossbar after half an hour as the visitors showed more will and determination at the Augsburg Arena in the Bavarian derby.
Hannover's miserable start to the season continued as they were beaten 3-0 by Mainz, whose summer recruit Yoshinori Muto scored his first goals for the club.
Muto beat the offside flag to put Mainz in front with his shot hitting the inside of the far post on its way past Ron-Robert Zieler in the 15th minute.
The Japanese striker added a second with a close-range header after Hannover failed to clear their lines and Yunus Malli took advantage of a defensive mistake from Marcelo to make it three early in the second half.
Darmstadt and Hoffenheim were both left still waiting for their first win of the season after sharing a 0-0 draw at the Bollenfalltor Stadion.