The ex-Netherlands boss has been in charge just 143 days, having replaced Thorsten Fink in September, but after eight straight defeats, Hamburg remain second from bottom amidst grave doubts about Van Marwijk's future.

"We will sit down this evening and discuss the situation. When there is anything to announce, we will," Hamburg's sporting director Oliver Kreuzer told Sky Sports.

Hammered 5-0 at home by Bayern Munich in the German Cup quarter-finals on Wednesday, Hamburg have also now lost their last seven league games, an unwelcome club record.

"My job isn't important," said the 61-year-old Van Marwijk. "I'm just trying to do all I can to get Hamburg out of this."

Hamburg have the worst defensive record in the Bundesliga having leaked 51 goals after 21 matches and are desperate to avoid being relegated from the Bundesliga for the first time in their history.

The defeat at Braunschweig means Hamburg remain second from bottom, but now only four points separate the bottom five teams.

Hamburg took the lead at Braunschweig when striker Pierre-Michel Lasogga grabbed the opening goal on his return from injury on 23 minutes.

But Braunschweig's Democratic Republic of Congo-born Dominick Kumbela came off the bench to score twice before Croatia midfielder Ivo Ilicevic appeared to save Hamburg's blushes with the equaliser 14 minutes from time.

However, Kumbela wrapped up his hat-trick when he pounced in a goal-mouth scramble after another mistake from Hamburg's German international goalkeeper Rene Adler, who had a dreadful afternoon between the posts.

To add to the visitors' misery, midfielder Jan Hochscheidt scored Braunschweig's fourth in the third minute of added time.

There were already angry scenes after Hamburg's 3-0 league defeat at home to Hertha Berlin last Saturday when angry fans pelted the players and attacked their luxury cars.

Van Marwijk is Hamburg's 10th coach in the last decade.