The drain pump cover is positioned incorrectly in the dishwasher.
Remove the drain pump cover. Proceed as follows:
Press the catch of the drain pump cover inwards (1).
Tip the cover inwards to release it (2).
Refit the cover by placing it down vertically from above.
![](https://cweb.miele.com/miga/All/129919678859__Web_All.png)
Make sure that the cover is flush with the edge.