If matters beyond the reach of a regular citizen or company needs solving, the german consulate is very well located in the center of the city, in Casa Europa, together with the French consulate. It is located at Av. Presidente Antônio Carlos, 58 - Centro, CEP 20020-010 Rio de Janeiro - RJ, and can be reached via telephone at (21) 3380-3700, via their Facebook page here, and via the Consulate's official webpage here.