Coach Oliver Glasner has returned to Wolfsburg with Eintracht Frankfurt and ended his former club's perfect start in the Bundesliga season by securing a 1-1 draw which enables champions Bayern Munich to end the weekend on top of the table.
Sam Lammers opened the scoring for Frankfurt on Sunday before Dutch compatriot Wout Weghorst levelled for Wolfsburg midway through the second half.
Wolfsburg had won the first four games of the season but have now lost the league lead to Bayern Munich who had routed Bochum 7-0 on Saturday.
Bayern are ahead of Wolfsburg thanks to their huge goal difference advantage, with Borussia Dortmund one point back and Bayer Leverkusen and Mainz another two points behind.
Dortmund won 4-2 against Union Berlin on Sunday with Erling Haaland scoring a brace while 10-man Leverkusen prevailed 3-1 in Stuttgart, with their teen star Florian Wirtz scoring one and setting up another.
Wolfsburg dominated early with Weghorst hitting the crossbar but Frankfurt took the lead in the 38th when newly-signed Lammers curled the ball around a defender into the left corner.
The hosts pressed for the equaliser which came with 20 minutes left when Weghorst slid in to score at the far left post, salvaging at least one point while Frankfurt are yet to win this season with four draws and a defeat.
In Dortmund, Raphael Guerreiro opened the scoring with a stunning drop volley into the far right corner in the 10th, Haaland headed home in the 24th and Union captain Marvin Friedrich bundled a sharp cross from Marco Reus into his own goal in the 52nd for what appeared a comfortable 3-0 lead.
But Max Kruse converted a penalty five minutes later for Union who drew within one in the 80th from Andreas Voglsammer's header.
Comeback hopes however only lasted three minutes before Mats Hummels chipped a long ball to Haaland who sensationally fired home his seventh goal of the season into the far right corner, with goalkeeper Andreas Luthe stranded.
The 18-year-old Florian Wirtz was Leverkusen's inspiration in the win at Stuttgart, setting up Leverkusen's second goal in the 19th minute and scoring the third himself to give the visitors their third win of the season.
Robert Andrich was the central figure for Leverkusen in the first half - for mixed reasons. He'd scored the opening goal in the second minute, but was sent off with the team leading 2-0 in the 30th for a studs-up lunge at Tanguy Coulibaly's knee.
Australian Associated Press