The hydraulic group is the most critical cluster on the diagram. It includes the circulation pump (which forces water through the spray arms), the drain pump (which ejects wastewater), and the non-return valve. The diagram details the specific gaskets, impellers, and seals for each pump. A common failure point is the drain pump’s impeller housing; the diagram’s exploded view shows exactly how to disassemble the sump assembly without damaging the delicate rubber seals.

The official diagram is typically split into four main clusters. Let’s break them down.

Note: exact part numbers vary by production run and region. Confirm with the exploded diagram or Miele parts lookup before ordering.