Miele G500 Technical Information page 109

G500 Dishwashers
5.7 Timer
The timer is held by two screws on the metal plate behind the fascia
panel – refer to Sections 5.2.1, 5.2.2 and 5.3.
5.7.1 Increasing Washing Times
To improve wash results, timers have been modified in that the duration
of the "main wash" program stage has been increased by 4 minutes in the
following machines:
Since Machine no. 15062280: G570, G575, G580
Since Machine no. 15042342: G572, G574, G577, G579, G582, G586
Since Machine no. 15049722: G590
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Technical Information