Miele SmartBiz PWM 300 Operating And Installation Instructions page 26

4. Adding detergent
 Close the lid and press it firmly shut.
 Close the detergent dispenser
drawer.
The capsule is opened by the act of
inserting it in the detergent dispenser
compartment. The contents can run
out of the capsule if you remove it
before it has been used.
Dispose of opened capsules.
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The wash programme will dispense the
contents of the capsule at the correct
time.
Water intake to the  compartment
is solely via the capsule.
When using capsules do not add
fabric softener to the
 compartment.
 Remove the empty capsule at the
end of the wash programme.
For technical reasons a small amount
of water will remain in the capsule.
Deactivating or changing CapDosing
CapDosing can only be deactivated or
changed prior to programme start.
 In order to switch off CapDosing,
touch the brightly lit sensor.
 In order to change CapDosing, touch
one of the other capsule sensors.