Right, the other one is in, after another half day of abandoning my family.
The driver's side was still not particularly straightforward, even after completing the passenger's side, and it was very awkward doing all the loom work in the footwells. I would still recommend it if you have heated manual seats and fancy a bit of DIY - the required skill level is moderate but nothing special. The heated electric seats seem to be about the same price to buy/sell on ebay and don't weigh much more (this was a surprise, actually).
If you do anything like this, remember to disconnect the battery at least 20 mins before removing the seats!
Old seat out:
Footwell trim off:
New wires (power, ground and the K-Bus connection) inserted into the under-seat connector:
Wires tidied up and plumbed into the existing harness guide under the drivers seat:
Ground soldered onto a ring terminal and connected to the common grounding point behind the kick panel:
Power and K-Bus connections plumbed along the main wiring harness from the driver's side to the passenger side and out into the fuse box (the power is the light blue cable - temporarily secured using electrical tape as I need to swop it for thicker wire of the correct colour):
Here's the fully populated connector (in purple/pink on the bottom RHS of the fuse box) showing the top left - driver's side - and bottom left - passenger's side - power wires slotted into place:
Must do a proper How-To post at some point. For now, here are my notes from the installation:
- Seat bases have 16mm nuts/bolts
- This post from WestCDA has details of the required connector part numbers and other useful info
- The under-seat connector (driver's side) pins are:
15 - K-Bus (red/white striped plus yellow dots)
14 - ground (brown)
13 - power (red)
- The fuse box connector is X11004 (for driver's and passenger's sides) and the pins are:
10 - driver's power, fuse 29
5 - passenger's power, fuse 15
- 17A wire for power and ground (approx 12ga) and 5A wire (approx 18ga) for K-Bus
I still need to patch in the K-Bus connection somewhere - maybe the centre console switch panel.