Looking at real oem it shows no option for a rack without the servotronic. Do all of the e53's utilize this? Is this used for the speed sensitive steering or is it just measuring the pressure of the fluid? I am fairly certain I do NOT have speed sensitive steering.

I just replaced the p/s pump and I have a similar feel to the steering as the OP.

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2004 X5 4.4 Build 01/04 Alpine White on Schwarz Dakota Leather, Anthracite Headliner
Xtrons Android HU, SPORT PKG, COLD WEATHER PKG(W/REAR HEATED SEATS AND HEATED STEERING WHEEL), CONVENIENCE PKG, FACTORY HITCH