VfL Bochum stunned Bayern Munich with two late goals to rescue a point from a 3-3 draw and pile the pressure on the Bavarians' coach Jurgen Klinsmann on Saturday.
Bayern came into the game after two straight defeats had seen the club drop down the table, with the clubs' president Franz Beckenbauer demanding a response from Klinsmann and his team.
It seemed they had got it as Bayern cruised towards a 3-1 victory but Christoph Dabrowski got a goal back for Bochum in the 83rd minute before Dennis Grote struck the equaliser five minutes from time.
Bochum's Sinan Kaloglu scored in the 29th minute to cancel out Daniel van Buyten's opener before Ze Roberto thought he had set his team on course for victory with goals in the 45th and 68th minutes.
The result leaves Bayern down in 11th place on the Bundesliga table with nine points from seven games, three points and three places better off than Bochum.
Surprise-package Hoffenheim has moved into top spot, however, after Bayer Leverkusen lost at home to Hertha Berlin and the newly promoted club heaped misery on under-fire Eintracht Frankfurt coach Friedhelm Funkel with a 2-1 victory.
Demba Ba opened the scoring for Hoffenheim in the 47th minute and although Markus Steinhofer equalised in the 66th minute, Ba grabbed the winner five minutes later.
Winless Frankfurt is second last with three points from six games.
An 89th-minute strike from Andriy Voronin was enough for Hertha to defeat Leverkusen 1-0.
Stuttgart is level on points and goal difference with Hoffenheim after it thrashed Werder Bremen 4-1 to climb up to second.
Sami Khedira opened the scoring in the 18th minute and Christian Trasch doubled the lead just before the half-hour mark.
Roberto Hilbert made it three just after the hour mark, and although Diego got a goal back for Werder, it was Stuttgart which had the last word through Martin Lanig's late strike.
If there is one coach feeling the heat more than Klinsmann and Funkel it is Borussia Monchengladbach's Jos Luhukay, who saw his side lose 2-1 at home to Cologne in a North Rhine derby match that could be his last in charge.
There was speculation before the match that Luhukay was facing the sack, and Milivoje Novakovic's winner for the visitors two minutes from time only increased the chances.
Cologne had taken the lead through Fabrice Ehret in the fifth minute before Roel Brouwers equalised for Gladbach after 10 minutes.
The result leaves Gladbach bottom in the Bundesliga with three points from seven games.
German Bundesliga
Bayer Leverkusen 0
Hertha Berlin 1 (Voronin 89)
Bayern Munich 3 (van Buyten, 15, Ze Roberto 45, 68)
VfL Bochum 3 (Kaloglu 29, Dabrowski 83, Grote 85)
TSG Hoffenheim 2 (Ba 47, 71)
Eintracht Frankfurt 1 (Steinhofer 66)
Borussia Monchengladbach 1 (Brouwers 10)
FC Koln 2 (Erhet 5, Novakovic 88)
VfB Stuttgart 4 (Khedira 18, Trasch 29, Hilbert 63, Lanig 88)
Werder Bremen 1 (Diego 65)