Miele Cva 615 -610 Coffee Maker

This listing is for a new water tank outlet valve stem sealing ring (Oring) for a Miele coffee maker model CVA 615 or 610.  The sealing ring is new but is not in  "original" packaging as it was bought as part of a bulk purchase.  This sealing ring is not too difficult to change.  I include the instructions on how to change it with every sealing ring I sell.  Miele calls this oring a Water reservoir Sealing ring.This oring is not the problem when you have leakage into the bottom of the machine.  This problem is almost always the lip seal or debris in the holes that the legs of the water tank go into.  These holes must be absolutely clean so the tank sits level when inserted. 
NOTE:  I have EVERY part for a CVA 615 machine and some for a CVA 610.  Please see my listings or contact me for availability or to sell your machine.