First-half goals from Jamal Musiala and Thomas Muller have taken Bayern Munich back to the top of the Bundesliga, thanks to a routine 2-0 victory over visiting Wolfsburg.

The 19-year-old Musiala fired home the opener in the 33rd minute on Sunday before the ever-alert Muller deflected in a second shortly before the interval.

The 19-year-old Musiala became the first German player under the age of 20 to score 14 Bundesliga goals

Bayern survived a lucky escape early on when Alphonso Davies turned the ball onto his own post but soon took control and were denied further goals by the offside flag on three separate occasions.

Borussia Dortmund had gone top of the table by winning 3-1 at Freiburg on Friday but Bayern have now gone back above their rivals, the only other side with a perfect record, on goal difference early in their bid for an 11th consecutive title.

Wolfsburg, coached by former Bayern boss Niko Kovac, may wonder how things would have turned out had Davies' attempted clearance found the net rather than the outside of the post in just four minutes.

Slowly but surely, Bayern took control and Sadio Mane was denied a first goal in Munich by the flag when he turned in from close-range.

The breakthrough was merely delayed till Musiala took Muller's pass and, though fouled, regained his footing to score from outside the box.

Muller himself doubled the advantage in the 43rd minute by turning Joshua Kimmich's shot past the wrong-footed Koen Casteels.

Muller, in his 417th Bundesliga game that lifted him to fourth on the all-time Bayern list, wrongfooted the keeper.

Dayot Upamecano and Mane had celebrations cut short by marginal, though correct, offside decisions after the restart and Casteels saved the rest of what was thrown at him to keep the score respectable.

Elsewhere Mainz and Union Berlin shared the spoils in a low-key 0-0 draw to each stay unbeaten in sixth and fifth respectively.

Both started with opening day wins but largely cancelled each other out in a game of few clear cut opportunities.

The hosts went closer to snatching all three points when Lee Jae Sung's long-range chip almost caught out keeper Frederik Ronnow while late on Marlon Mustapha went on a fine solo run only to poke wide.

Union threatened only with half-chances but did enough to merit a point.