turn the machine and remove the big steel plate (there could be some adhessive ,.) use the torx screwdriver t20

when the machine is getting a little older the black rubber seal dacay over time... ( i am not sure this phrase is correct? ) . A new one costs 98 euro here in Belgium ...rediculous... , so be very carefull with older machines ( + 5 years..)

after cleaning the machine on the back ( 3 times over 5 years) the machine started leaking water , cause the rubber seal was comming loose.

Tip: you can replace the broken rubber seal with silicone ( waterproof silicone)