I had a short in my seat which was blowing one of the fuses on start-up. I tracked this down to the lumbar support ( tho I was sure it was going to be the seat heater). I depinned it from the BECM connection, and so i have everything else working except the lumbar support Being a quasi-perfectionist (struggling to get excited about my non-operational cruise control) I was wondering whether the lumbar support pump/ bladder would be the sort of thing that was easier to replace, or it's fairly rudimentary once you're inside the seat? Has anyone had a play with this before?

Ta, Rob

Personally I’ve never had to strip the upright on a seat, as the heater elements don’t fail there, I’m thinking that as it’s blowing the fuse, it must be the pump which I would of thought is under the seat , so should be easy to repair/replace

Nah, the whole lumbar system is in the upper part - pump and all...

I've had the backs apart a couple of times on the REALLY rare occasion a heater element has failed in there, and they are easy enough to strip... you need to take the arm rest off, and then loosen the cover at the bottom and carefully slide it up the chair. You won't need to take it all off to get to the lumbar bits as it is at the bottom of the back section. You will probably have to undo a few of the hog rings on the front side to get the cover up high enough, but they aren't horrific to remove with a couple of big sets of pliers :D

I have had the seat bases apart to repair the seat heaters a few months back. I also put extra foam in the side sections of the seat bases and swapped driver/passenger seats over. Did some stitching repairs to the base. Never been any need to do anything to the uprights.

Thanks Marty, i took myseat out and stripped along the lines you suggested. Turned out one of the metal coathanger struts used to brace the seat had skewered the lumbar pump wiring and the insulation on the white wire had melted away