Miele h 6460 bp Operating And Installation Instructions page 18

Accessories
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Only use genuine original Miele accessories. Using accessories
from other manufacturers will invalidate the guarantee, and Miele
cannot accept liability.
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If you have a Miele HUB 5000-M, HUB 5001-M or a HUB 5000-XL
oven dish, do not place it on Shelf level 1.
This would damage the floor of the oven. The very small gap
between the bottom of the dish and the oven floor would cause a
build-up of heat and could cause the enamel to crack or chip.
Never place a Miele oven dish on the top rail of Shelf level 1 as it will
not be held securely in this position by the anti-tip notches on the
runners.
In general it is best to use Shelf level 2.
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The high temperatures used during pyrolytic cleaning will
damage accessories that are not designed for cleaning in the
Pyrolytic programme.
Please remove these accessories from the oven interior before
starting the Pyrolytic cleaning programme.
Warning and Safety instructions
17