AlQa'dah 14, 1436, August 29, 2015, SPA -- Champions Bayern Munich defeated Bayer Leverkusen 3-0 thanks to a Thomas Mueller brace and Arjen Robben strike Saturday to return to the top of the Bundesliga while VfB Stuttgart are in early crisis after three straight defeats. Mueller was making his 200th league appearance for Bayern and celebrated in style with his 75th and 76th goals. In the 26th minute he had a simple finish to guide in Douglas Costa's cross and converted a penalty on the hour. Both sides hit the bar and Leverkusen's Stefan Kiessling could have levelled when he had a shot saved by Manuel Neuer and the rebound cleared from the line. Another penalty in the 70th minute gave Mueller the chance of a hat-trick but newly appointed Netherlands captain Robben was given the responsibility of making it 3-0. Earlier Stuttgart were beaten 4-1 at home by Eintracht Frankfurt to remain without a point. An own goal from Adam Hlousek put Frankfurt in front at Stuttgart and though Daniel Didavi equalized, Luc Castaignos restored the lead with his first goal for Frankfurt. Haris Seferovic's penalty sealed the win 20 minutes from time and Castaignos added a late fourth. Cologne scored twice in the last 20 minutes to defeat 10-man Hamburg 2-1, Mainz crushed Hanover 3-0 and newly promoted Ingolstadt won 1-0 at Augsburg. Darmstadt drew for the third time in succession, 0-0 with Hoffenheim.