Mercedes-Benz Conecto Manual page 122

Driver's area controls
Operating displays/driving mode/bus stop mode
Windscreen heating (option) active
(permanent display)
M54_00-0608-01
Displayed if the windscreen heating has
been switched on using the pushbutton
on the side compartment.
Note:
The heating for the windscreen is only
active for approximately 12 minutes.
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CONECTO (C628.3--)/08.2007 GB
Air-conditioning system active
(permanent display)
M54_00-0609-01
Displayed as soon as the refrigerant
compressor is running.
Roof hatches open (permanent
display)
M54_00-0610-01
Displayed if the roof hatches are open.