Seems like a dumb question, and in general I know, but in the last week (since getting my 01 M5 back from service) I'm having trouble detecting the difference in steering with the sport button on. The throttle effect is definitely intact. So, I wonder if its possible to inadvertently "dis-engage" the effect on steering. This dealership once forgot to secure my fuel line and I was stranded en-route to a wedding, so I have the right to be suspicious. I can recall times when the steering was so tight I was almost startled by the amount of effort it took to turn the wheel (man that felt good!). Is it dependent on your speed and/or other factors? Should I notice a difference in Sport steering even at slower speeds? Please help me set my expectations before I jump to futher conclusions. Thanks in advance.