I don't know if having the window motor disconnected will cause problems. I don't think so but I wouldn't be surprised.

On the other hand, the steering column failing is pretty typical and is usually the driver side seat control module. The first sign of that module failing is when the steering wheel fails to adjust properly. It'll eventually stop adjusting completely, and your seat will follow.

You can swap in a used one, no coding is needed.

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03 3.0i mt
89 325is