So decided to end up going to route 2.
Firstly, after work and with some non raining weather, decided to give the XCP a quick blast around the engine bay:
\
The spray goes on as a mist at a distance and pretty sticky film if close. There is a clear coat variant which doesn't leave the orangey-brown you can see, but was kinda after this so I know what's been covered. Basically focussed on aluminium bits and nuts and bolts (a lot are pretty rusty, hopefully the XCP helps in that regard).
On the right side, mainly sprayed onto the top of the gearbox and nook and crannies.
It meant that I can finally start reassembling the engine bay, starting with the battery tray:
Then the weather took a turn, so that was that.
Back in the house, started to disassemble the Octavia seat:
Familiar territory, so a case of unclipping the cover from the metal guides:
Continuing around the whole frame:
Then the cover and padding can then be lifted. The two are attached by hog rings, but this is probably destined for the tip, so no need at any stage here to be careful.
Compared the revealed spring and hinge to the old frame:
It's immediately obvious how different it is:
So the hinge area is larger, and there's the spring thing inside some plastic frame. So even if this can be separated and there's a part number, it's highly unlikely it'll be mountable onto the other side frame if the whole hinge area is different.
The below is of the part numbers:
Not the best pic, but essentially the non sprung one is 3V0 885 501 compared to the sprung one being 3V0 885 501 A so very annoying they couldn't just use the one frame design.
Definitely means that realistically, I'll have to do the same for the right side seat, so buy one from an Octavia with the rear seat release mechanism and so also the spring in that hinge. Then take out the cover and padding from the Superb and onto that Octavia frame.
So time to remove the seat cover from the Superb:
So here's the Superb cover ready to go onto the Octavia frame:
With that hinge being larger, the foam needs some more cutting:
Probably could have used the foam from the Octavia as a reference, but just hacked at it until it fit into place with less resistance.
Took the plastic hinge bearing out as well, but ended up mangling it in the process:
I have ordered replacements though via lllparts as part of the desperate search for answers, hence being a bit hamfisted with the above.
So yeah, once the padding was sitting reasonably, clipped the cover back on:
So yeah, once the replacement plastic hinge bearing arrives, I can probably then try a test fit before I fit the rest of the bits onto the seat.
Time to shop for that other seat...
Maintenance: £1985.98
Upgrades: £1066.79
Miscellaneous: £652.07