Siemens 
D12-52 Operating And Installation Instruction page 44

Cleaning the deter
gent dispenser
44
In the event that residual detergents or additives have
accumulated:
q Pull out the detergent drawer all the way,
q press down the insert and
q remove the detergent drawer.
q Open the cover.
q Clean the detergent drawer and cover under
running water and dry.
q Close the cover and lock into position.
i Insert the cover cylinder onto the guide pin.
q Slide in the detergent drawer.