A little update for you guys. New clutch is fitted, spent about 12 hours all in with two people over two days. Went off without a hitch!
Taking off the old clutch made the cause of the noise readily apparent; two of three metal straps holding the pressure plate together was broken! This caused a rough idle and an ungodly rattle with the clutch pedal depressed.
Lifted the car by the gearbox side motor mount with an engine lifter and put it on tall jack stands, removed the battery and battery tray. Next we unbolted the wheel well cowling(?)/plastic and the lower control arm for the bushings on the drivers side (Norway so LHD not RHF) so we had space to pull the driveshaft out completely, right hand side driveshaft only need unbolting from the gearbox. After all the bits and bobs on the gearbox was out we dropped it from the bottom with one person underneath. This was a bit finicky but it was enough space to do it without too much trouble.
Gearbox oil changed, new clutch slapped on. We didn’t have the tool to compress/pretension the pressure plate so we used a simple centering tool and gradually torqued the screws to 20nm in typical zig zag fashion.
With me lying on a creeper/roller and the gearbox on my chest lifted the gearbox and mated it back to the engine with the other person standing above the engine bay and lifting from there. This wasn’t super easy, but a bit of finessing and manouvering of the gearbox did the trick.
Highly recommend being two for this job, especially for the mounting and dismounting of the gearbox.
The 12 hours includes coffee breaks, googling stuff and a trip to the local parts store.
For the algorithm: This was done on a manual 2013 Audi A3 8V 1.4 TFSI CMBA 122bhp engine, gearbox code is MYF/0AJ.