Hello again. If the door won't lock using pliers on the blade try pushing the button inside that locks the door while having the exterior door handle pulled out, this might allow the lock to activate or use a back door last and this should allow you to press the button in on the rear door before closing it (lock the driver's door from inside). With regard to the electrical systems if it is a total electrical failure then check the main fuses that are on the side of the fuse box under the bonnet' you need to remove the side cover for this, there are also fuses in the fuse box inside the car on the passenger side and in the rear fuse box in the boot. Ideally have a multimeter so you can check for power going to the fuses, there is also a fusible link in the main battery cable but usually any problem with this means you still get ignition lights but the engine doesn't crank. Let me know if I can advise further. Best regards, Sean.
Cheers ***** ***** try the fuses etc in the morning and get back to you. Nige.
PS just tried to lock it and it doesn't work. I tried leaving the rear door unlocked and locked the driver's door from the inside but couldn't unlock it again with the key. Frustrating indeed?
Let me kow if I can provide further advice. Regards, Sean.