Trunk Won't Open
It turned out to be a seized tumber in the trunk lock itself. I soaked it with penetrating lube and let it sit for an hour. I grabbed some vice grips and figured I would just turn the lock until either the tumbler broke free or the key broke. I know, not the smartest thing to do, but it was going on 1am and I was in anything but a good mood at that point. Good news was that the tumbler broke free and now it is as good as new. Even the door locks are working again.
I guess I will just lube it from time to time. I also learned that it is impossible to get into the trunk from the backseat.
I'm from the UK and had the same problem, boot wouldn't open by remote or key.
What you need to do is take out the first aid kit, under this there is a plastic tray which you should also take out.
You will then see the bare metal which goes into the boot.
What you need to do is get someone with a small hand to feel around for a cable, this is the cable which releases the seat, if i remember correctly its to the right.
Pull this cable and your seats will come loose you can pop them down and gain access to the boot lock!



