After his two–years spell at Fortuna Düsseldorf came to an end, Beister was linked with a move away from the club, with Borussia Dortmund interested in signing him.
Despite this, Beister stayed at Hamburger SV and was expected to feature in the first team ahead of the 2012–13 season.
At the start of the 2012–13 season, Beister found himself in a competition over a first team position in midfield with Ivo Iličević and Gökhan Töre.
Nevertheless, Beister received a handful of first team appearances on his Hamburger SV return and scored in a 4–2 defeat to Karlsruher SC in the first round of the DFB-Pokal on 19 August 2012.
Beister then scored two goals in two league matches between on 27 November 2012 and 2 December 2012 against Schalke 04 and Wolfsburg.
After scoring against Greuther Fürth on 2 March 2013, Beister was then sent–off in the 80th minute, just 11 minutes after coming on as a substitute for a foul on Daniel Baier with an unnatural foot stretch in the Kung-Fu style.
Despite having set back later in the season and serving a five match suspension in March, Beister finished the 2012–13 season, making  24 appearances and scoring four times.

In the 2013–14 season, Beister started the season when he scored in the opening game of the season, in a 3–3 draw against Schalke 04.
After being suspended for picking five yellow cards this season, Beister's return was short–lived when he suffered a cruciate ligament rupture during a friendly match against Vitesse in January and was sidelined for the rest of the season.
At the end of the 2013–14 season, Beister had made 19 appearances and scored six times.

However, in the 2014–15 season, Beister remained on the sidelines since the start of the season, due to injuries.
In January 2015, he made his return from injury, playing in a friendly match against Eintracht Frankfurt which Hamburger SV won 3–2.
Beister made five appearance in the 2014–15 season, having spent the rest of the season at the reserve after returning from injury.
After his two–years spell at Fortuna Düsseldorf came to an end, Beister was linked with a move away from the club, with Borussia Dortmund interested in signing him. Despite this, Beister stayed at Hamburger SV and was expected to feature in the first team ahead of the 2012–13 season. At the start of the 2012–13 season, Beister found himself in a competition over a first team position in midfield with Ivo Iličević and Gökhan Töre. Nevertheless, Beister received a handful of first team appearances on his Hamburger SV return and scored in a 4–2 defeat to Karlsruher SC in the first round of the DFB-Pokal on 19 August 2012. Beister then scored two goals in two league matches between on 27 November 2012 and 2 December 2012 against Schalke 04 and Wolfsburg. After scoring against Greuther Fürth on 2 March 2013, Beister was then sent–off in the 80th minute, just 11 minutes after coming on as a substitute for a foul on Daniel Baier with an unnatural foot stretch in the Kung-Fu style. Despite having set back later in the season and serving a five match suspension in March, Beister finished the 2012–13 season, making  24 appearances and scoring four times.
In the 2013–14 season, Beister started the season when he scored in the opening game of the season, in a 3–3 draw against Schalke 04. After being suspended for picking five yellow cards this season, Beister's return was short–lived when he suffered a cruciate ligament rupture during a friendly match against Vitesse in January and was sidelined for the rest of the season. At the end of the 2013–14 season, Beister had made 19 appearances and scored six times.
However, in the 2014–15 season, Beister remained on the sidelines since the start of the season, due to injuries. In January 2015, he made his return from injury, playing in a friendly match against Eintracht Frankfurt which Hamburger SV won 3–2. Beister made five appearance in the 2014–15 season, having spent the rest of the season at the reserve after returning from injury.
Maximilian Beister