2008 BMW 5 Series Owner's Manual - Page 109
2008 BMW 5 Series Manual
Page 109 highlights
If you activate the system below a speed of approx. 40 mph/70 km/h, a message will appear stating that the system is not active until this speed is reached. A warning will be canceled: > after approx. 3 seconds > if you brake heavily > if you signal > if you return to your lane System limits The leaving lane warning cannot serve as a substitute for your personal judgment in determining the course of the road. If the system issues a warning, do not move the steering wheel with unnecessary severity, as otherwise you could loose control of the vehicle.< The function of the system may be limited in the following example situations: > in heavy fog, rain or snowfall > with worn-away, poorly visible limit lines, or lines that run together or apart or are unclear, e.g. in road construction areas > when limit lines are covered by snow, ice, dirt or a great deal of water > in tight curves or on narrow roads > when limit lines are not white > when limit lines are covered by objects > when driving up close behind a vehicle driving ahead > with bright counter light > when the windshield is fogged up, dirty or covered with stickers, vignettes etc. in the area of the inside rearview mirror Driving tips Reference Mobility 107 Online Edition for Part no. 01 41 0 014 240 - © 08/07 BMW AG Communications Entertainment Navigation Controls At a glance