How do i clean my miele coffee system cva...

I have a cva4075 so this may not be exactly the same, but on the 4075 you open the front of the machine and pull out the left hand plastic container on the top. Underneath on the right hand side you will see a small flap. On the bottom side of the flap is a red triangle sign. That flap is the top of the funnel for the ground coffee. You drop the cleaning tablet into this funnel.