Looking for apartment in Munich

I am looking for an apartment in Munich for the duration of my Internship, which start at around mid of September until end of this year. Maximum rent i can afford is around 600 euros and Im ok with shared apartment, maximum of 2 flat mates. Location should be close to center, my company is called 3megawatt and i should be able to ride a bike or walk to my work, so maximum 5km from my company.