If like me you often find that your boot/trunk lid doesn't always shut properly first time or you have to slam it to get the catch to lock, then here is a quick fix.
This only takes a few minutes and is very simply to do.
You will need:
Fingernail/flat head screw driver or similar
T30 (star) screw driver (although the correct sized flatheaded may work)
Locate the plastic cover directly below the catch on the boot/trunk lid.
Remove the cover with your fingernail etc.
Loosen the 3 screws, they only need 1 full turn, you don't have to take them out. You will need a T30 screwdriver or bit as shown.
Slide the catch all the way to the top. You should have about 8mm of movement. I found that sliding it all the way to the top worked best for me, you may need to try different positions,
Tighten screws back up
Replace plastic cap. Job Done!