I think we're getting 2 types of steering confused. Servotronic is available on our current X5s - not sure from what year, but this type of steering adjusts the assist, i.e. tight on the highway but very light in parking lots to help with parking. Assist is different and this type of steering actually adjusts the steering ratio, i.e. turn the wheel a little when you're going slowly and it turns the wheels alot - also helps with parking & U-turns. On the highway, the steering ratio changes such that you need to turn the wheel more to turn the car, but this makes for a more stable feeling on the highway. Active steering is not available in our currect Xs, but I think it will be on the 2007s...

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'08 335i Coupe - Barbera Red / Saddle Leather / Light Poplar Wood / 6spd Manual
Options: Sport, Premium, Cold Weather, Comfort Access, Active Steering (awesome!), Power Rear Shade, IPod Adapter, Navigation w/IDrive
Mods: M6 Wheels, Split Armrest, M-Steering Wheel, Euro Light Switch w/Rear Fog Lights, Short Shift Knob w/Matching E-Brake Handle, Clear Reflectors, CDV, Clear Bra

Retired:'04 X5 4.4i