Hi all,
None of my seat heaters were working so I decided to replace them. I've seen some articles about repairing the seat heaters on the 240 but even when they are working great they're not going to compare to modern heaters.
I bought these heaters from Amazon
https://www.amazon.co.uk/gp/product/B0064TJNCC
Fitting them was fairly straightforward and the switches are almost a perfect fit, just had to make the slots a bit wider using a file and the holes are a bit too long. I could do with a new centre console anyway as mine has lots of broken off bits and cracks so I'll do a better job when that happens.
The seats heat up in about 10 seconds!!