A couple of pictures before bed, DPF additive added to the Blue 308 this afternoon/evening.
Cover 3x M6 flange head nuts, then tank revealed.

- Tank (formerly hidden behind cover)
Flexible hose disconnected and clear tubing of the refill kit plugged in to the end. Second short length of hose pushed onto tanks spigot and bottle onto this for any over spill.
The full 1 L of the bottle went in, no overspill, so seems the ecu's estimate of zero milliliters left is correct.
Software reset side of the job will be tomorrow's task.
Rear beam surprisingly rusty so wire brushed and phosphoric acid applied. Coat of paint then coat of Tetroseal to follow tomorrow.

- Crustyness
A few spots mostly rusty spots in the inner arch also needing treatment.
Plastic wheel arch liner needs wrestling off one fixing to edge of bumper putting up a fight still.
Hardly surprising given it seems to be living in a bed of accumulated mud!
Another fixing put up a real fight but thankfully overcome eventually
Don't think I'll be using that again!