Bosch HBN 43M 550 A Installing And Operating Instructions page 30

Cleaning the catalytic
surfaces of the oven
Cleaning the oven floor
Cleaning the glass cover
for the oven light
30
The rear wall, top and side walls of the oven are
coated with self-cleaning enamel. The surfaces clean
themselves while the oven is in operation. Large
splashes may only disappear after the oven has
been used several times.
Never use oven cleaner on self-cleaning surfaces.
If the self-cleaning surfaces of the oven are no
longer cleaning themselves sufficiently, they can be
regenerated using the cleaning function.
Should the enamel become slightly stained, this will
not affect its self-cleaning properties.
Use hot soapy water or a vinegar solution.
It is best to use oven cleaner if the oven is very dirty.
Only use oven cleaner in a cold oven.
Never use oven cleaner on the self-cleaning surfaces
of the oven.
Note:
Enamel is baked on at very high temperatures. This
can cause some slight colour variation. This is
normal and does not affect the function. Do not use
coarse scouring pads or strong cleaning agents to
remove such discolorations.
The edges of thin trays cannot be completely
enamelled. As a result, these edges can be rough.
Anti-corrosion protection is guaranteed.
It is best to clean the glass cover with washing-up
liquid.