Quote:
Originally Posted by Harplayr
I wonder if it’s possible to upgrade to variable assist steering by changing out the module?
I had it on my E83 but didn’t order it on my F25.
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Quote:
Originally Posted by johnbmw6
I have the sport / Variable, I am not sure if the whole rack has to be changed for that.
Mine may have to have one yet.
I have raised a case with BMW today, if I don't get satisfaction, they keep it.  |
The variable sport steering is rather "dumb". It uses a progressive rack and pinion with a increased ratio as you progress to the extreme travel of the wheel. I'm almost certain you would need a new rack to make this upgrade! The software would also probably have to be updated for the stability control and active headlights not to freak out!