W204 heated seats retro fit

[chuckleuk]

I'm hoping someone could help me out, I have a 61 plate c250 amg sport with half leather non heated seats. Can anyone tell me what is required to retro fit heated leather seats, is there any modifications to wiring harnesses required etc. any help at all greatly appreciated.

 

[richard]

New wiring harness for heated seats, New switch pack with the buttons, poss new rear SAM (option dependent).

If you have not bought new seats with heated wiring in them, then also, seat wiring harness and seat pads.

I'd buy used seats with the elements in, because from factory the seat heating elements are in the leather and adding retrofit pads is not as good (slower to warm up, and not as good coverage)

Richard