Manually adjust electric seats?

[benedwards64]

The passenger seat of our 2003 996 C2 has electric tilt seats (all other movements are manual, thankfully!) and the tilt is only working in one direction - the seat-back is now in a very uncomfortable upright position. A read around the internet suggests the switch is probably to blame seeing as it's working in one direction and not the other.

At some point when I have time I will dismantle and clean/replace the switch, but in the meantime is there a way of manually adjusting the seat so I can 'fix' it in a more comfortable position? I've seen various references to this on a variety of Porsche seats but nothing specific to the 996.