I know that they still use a BO-105 on a full-time basis as "Christoph 33" in Senftenberg. Other than that, the one or two remaining BO-105s in the ADAC fleet serve more as backup machines.
The BMI (Bundesinnenministerium) and the DRF still have quite a number of BO-105s in use as HEMS machines (see
EMS Helicopters in Germany). In general though, the BO-105 is slowly but surely being phased out, due to the more stringent JAR-OPS 3 requirements, which will be implemented in Germany by the end of 2009.