Bayern Munich dropped Bundesliga points for only the second time this season, as Borussia Dortmund were defeated.
Stuttgart dropped to the bottom of the Bundesliga after losing the Baden-Wurttemberg derby with Hoffenheim 2-0.
Ivica Olic salvaged Wolfsburg a point in Hoffenheim and earned his coach Dieter Hecking some breathing room.
Bayern Munich were held to a 1-1 draw by Schalke, while Bayer Leverkusen ran out 4-2 winners against Hertha Berlin.
Werder Bremen were held to their second 1-1 draw of the season by Hoffenheim, who extended their unbeaten start.
Bayer Leverkusen claimed a shock 2-0 Bundesliga win at Borussia Dortmund on Saturday, while Hannover beat Schalke.
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