Quote:
Originally Posted by Needsdecaf
This is not how electric power steering works. The electric motor works on the shaft, assisting in turning it. There is a direct connection between the shaft and the steering box. What you described is drive by wire steering, which the F10 does not have.
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The electric motor imparts rotary motion to the pinion, which then moves the rack laterally. However, the motor requires an input from the steering wheel, via the computer/control unit, hence a very slight delay in reaction time. This, as I have previously mentioned, does not happen with a hydraulic system as the motive force, in the form of pressurised fluid, is constantly on-tap.