All the MK7 diesel versions should have an engine cover and none of the MK7 patrol versions had one. It wasn't even an option for the patrol versions.
The TS wants to know were the screw fixings were for, take a look at this picture. This is my MK7 1,25 engine bay.
The two red circles were the fixing points for the airbox on the Fiesta MK6(.5) engines. The MK7 has the airbox next to the cylinders.
The four yellow circles are there on some engines models to fix (as you can see) a Volvo cover.
The 1.6 engines from Ford were also placed in some Volvo models. All volvo engines came with such cover.