The e-brake worked when I first got the car. After a while it felt very ‘sloppy’ and then eventually it did nothing at all. I decided to replace the main mechanism, front & rear cables.
Removing the parking brake required the removal of one nut in the engine bay (there were meant to be two!) and two under the dash (Only one was there also!) Once this was done I removed a ‘dowel pin’ (You can just see it above the handle in Fig2) which meant I could push the brake cable up and remove it from the assembly.
I decided to install the new mechanism using the existing cable, just in case the issue was actually the old mechanism. The first thing I found is that the orientation of the top bracket to the fixing bolts was different on the new unit, meaning attaching the top nuts was virtually impossible. I could drill new holes in the firewall but decided to see if I could ‘brute force’ install it.