3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
I dont think they are prewired. You would need to run a supplementary harness. Also that switch assembly is a module and really should be coded if you replace it. The hardest part of the job would be disassembling the seats and installing the heater mats.
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