How to remove the air filter compartment - defender 2009 110

Hi,

I'd like to know how to remove the two plastic type screws that hold the air filter compartment together. They are located underneath the main top panel.

I'm having problems fitting the plastic air intake. I've got it into place but the part that goes into the filter compartment can only go in if I remove the air filter compartment.

Can someone help please?

Thanks