Finally had a chance to have a good look at the storage compartment between the headrests. I managed to get the compartment open with a little persuasion, it didn't take much at all. I unscrewed the two screws underneath the 'push button' and gently lifted the top half of the cover off. (Unfortunately I did not have either my phone or a camera on me, so was unable to take any pics. I will do that next time, and there will be a 'next time' as you will see.) This exposed the mechanism and the first thing was to check that there was a voltage getting to the motor/relay. Taking the plug out and connecting it to a meter, and locking and opening the car with the key proved that there was indeed voltage there. Replacing the plug and doing the same thing with the key resulted in nothing happening, so I loosened the five screws that held the motor/relay and the mechanism in place, hoping that if something had jammed then it might just free it. No such luck! So I finally removed all the screws and took the latching mechanism out, but was unable to remove the motor/relay. The reason for the fault became clear. The 'plunger', for want of a better word, that pushes the two latches apart was jammed fully out and would not budge, this resulted in the compartment door staying locked and the pull cord in the boot being inoperative.
Now, the reason for writing 'motor/relay' is because I am not sure whether it is a motor that pushes the 'plunger' out or a relay that does the job. In whichever case, you cannot remove the unit because of the plastic surrounding it, unless you take the whole of the back out ( or break the plastic surround
). So I was unable to work on the unit to find why it failed, at least, not in the time I had.
The options I have at the moment are, leave the 'door' open and use the space or, close it and forget it, I've chosen the former as it will come in handy! I do not intend to keep it like that and will try and get another unit, but from where, I don't know. Oh, another option is to cut the plunger off, it will be a bit of a fiddle to do, but can be done. That way I will be able to use the compartment as intended but it will not lock. But, I would rather not do that just yet until I find out if it can be repaired.
Colin.