People have explored mat replacement and i think I've seen ten threads with only one success story which did involve reupholster.

I replaced my whole seat bottom for $50 but i think you said you replaced the whole seat with incompatible model.

You can look into if the pad just has a different connector and you can swap from old seat. Or: did somebody cut the lead from the seat mat?

Did you say the seats are replaced seats or reupholster? Too manyb threads on seats to keep track.

Look though the parts on realoem you might discover if the mat box is incorporated into the new seat or just was removed. Also: is there a chance parts were swapped? Do you have driver seat bottom on passenger side? Look under your driver seat for the butt sensor box.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)