Hello ATVC3,
the little semi circle bits and bits above
The 2 semi-circle and 2 sprung wedge shape bit above them are for the moduboard.
Its a split shelf (split like the rear seats) that folds up and locks into the wedges when not in use, and folds down to provide a shelf over the lower part of the boot space.
Its really useful and allows delicate shopping to be placed on the boot floor, the mouboard to be unfolded to allow another layer of shopping on top, without damaging the items below. It must have been an option, or a previous owner lost yours.
Sometimes you can find moduboards for sale here. Its worth checking back regularly if there are none currently showing as listings do appear quite often for the moduboard.
Moduboard configurations ('moduboard removed' is not shown, as you know what that one looks like

)

- Citroen C3 Moduboard configuration: Left up, Right up, unused position.
Left and Right section are up.

- Citroen C3 Moduboard configuration: Left up, Right down
Left up and Right Down (moduboard split configuration)

- Citroen C3 Moduboard configuration: Left down, Right up
Left Down and Right Up (moduboard split configuration)

- C3 Moduboard Left and Right Down
Moduboard with both section down.
The down sections lock in to mouldings in the boot and feel quite strong, considering its mostly plastic.
there is also a weird red handle thing between where the seats split
Not sure what that is, is it only visible from the boot, or from sitting on the back seats?
If you get back to me I will go and have a look for you (seeing as its such a nice and sunny day

)
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