Boot lock fix (spinning key syndrome).

[Unclefista]

After having issues with my boot not opening on the key, I eventually found a lock with the part I needed that wasn't broken and fixed it.
Since then I've answered a few threads explaining what to do, (stupidly I didn't take any photos) but it's not easy without pics.

I obtained a spare boot lock today because it was free and I've disassembled it and taken some photos of the process.

Hopefully I'll be able to point to this thread next time someone asks.

The symptoms:
Key rotates in the boot lock and doesn't unlock, the key can be spun around and around, usually there's a stop.

The cause:
Inside the lock there is a small intricate casting which cracks and breaks up.

The solution:
Replace the casting with a good one, the key is not needed for the donor lock. Finding a good one isn't easy, the one in the photos is the only one I've seen that's not cracked and/or broken at all.
I suggest taking the lock apart to check the parts before paying for it in the scrapyard.

To remove the lock you need to peel back the boot lid lining, undo the bar on the lock (red plastic clip) undo the 2 screws that secure it to the boot lid, rotate the lock and pull out, then undo the electrical plug.

You'll then have this


Turn it upside down to reveal the end plate secured by a circlip.


Remove the circlip.


The end can then come off, don't lose the spring.


Revealing the problem (there is no problem in the pic, the lock is fine).


To get to the part, you need to remove the part holding it in place.
Where the slots are in the black plastic, you need to lever the cylinder up.


Then remove it.




Which allows the part we're after to be removed.



Slide the pieces apart.



This is the part that breaks up, replace with a good one and reassemble.



Disclaimer:
You are responsible for any work or modifications carried out on your car and you undertake any such work at your own risk.
The 75 and ZT Owners Club nor the original author of this How-To can be held liable for anything that may happen as a result
of you following this How-To.