CITROËN C3 Handbook page 227

F Start the compressor by placing the switch
at the "I" position and adjust the pressure
to the value shown on the vehicle's tyre
pressure label.
To deflate: press the black button on the
compressor pipe, at the valve connector.
F Once the correct pressure is reached, put
the switch to the "O" position.
F Remove the kit then stow it.
Should the pressure of one or more
tyres be adjusted, it is necessary to
reinitialise the under-inflation detection
system.
For more information on Under-
inflation detection, refer to the
corresponding section.
In the event of a breakdown
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