This should be taken to a local mechanic if you can not figure it out yourself. However, using the car's manual, you should be able to figure out how to remove the fuel filter even if the coupling is broken.
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Changing the pollen filter on a citren c4 grand picasso is an easy tenh minute job. First unscrew and remove the cover on the air duct. There is your filter. Just remove and replace.
Use a filter wrench and turn counter clockwise.
It doesn't have one.
Remove transmission oil pan for access
I
to get the oil filter out you need to remove the black cover in front of the cross member by the two wing bolts and then pull the oil filter through there.
You didn't remove the bolts.
You must remove the air box in front of battery, filter is hidden underneath.
If there isn't a removable access, you do not have a cabin filter.
Remove transmission oil pan for access to filter
When you remove the oil pan and look up, it is the part that the filter is snapped into.When you remove the oil pan and look up, it is the part that the filter is snapped into.