2011 Mercedes E-Class Owner's Manual - Page 196

194 Driving systems between 50 mph (80 km/h) and 112 mph (180 km/h). If ATTENTION ASSIST detects fatigue or increasing lapses in concentration on the part of the driver, it suggests taking a break. Warning and display messages in the multifunction display Driving and parking G Warning! The ATTENTION ASSIST is only an aid to the driver. It might not recognize fatigue or increasing inattentiveness in time or fail to recognize them at all. The system cannot substitute a rested and attentive driver. Fatigue can cause you to recognize dangers too late, to misjudge potential dangers, or to react slower. Therefore, make sure to be rested before and during your trip. Take rests early enough and regularly, especially during long trips. Failure to do so could cause you to recognize dangers too late which could result in an accident and serious injury to you and/ or others. X Activate ATTENTION ASSIST using the onboard computer (Y page 207). Symbol : appears in the multifunction display. ATTENTION ASSIST assesses your level of fatigue or lapses in concentration by taking the following criteria into account: Ryour If ATTENTION ASSIST is active, it will not warn you until at least 20 minutes after your journey has begun. You then hear an intermittent warning tone twice and the Attention Assist: Time for a rest? message appears in the multifunction display. X If necessary, take a break. X Press a to confirm the message. On long journeys, take regular breaks in good time to allow yourself to rest properly. If you do not take a break and ATTENTION ASSIST still detects fatigue or increasing lapses in concentration, you will be warned again after 15 minutes at the earliest. ATTENTION ASSIST is reset when you continue your journey; it reassesses your tiredness if: Ryou Ryou personal driving style, e.g. steering characteristics Rjourney details, e.g. time of day and length of journey The functionality of ATTENTION ASSIST is restricted and warnings may be delayed or not occur at all: Rif the road condition is poor, e.g. if the surface is uneven or if there are potholes Rif there is a strong side wind Rif you have adopted a sporty driving style with high cornering speeds or high rates of acceleration Rif you predominantly drive at speeds under 50 mph (80 km/h) or over 112 mph (180 km/h) Rif you are currently using COMAND or making a telephone call with it Rif the time has been set incorrectly Rin active driving situations, such as when you change lanes or change your speed switch off the engine. take off your seat belt and open the driver's door, e.g. for a change of drivers or to take a break. Blind Spot Assist Important safety notes Blind Spot Assist uses a radar sensor system to monitor the areas on both sides of your vehicle. It is active at speeds above approximately 20 mph (30 km/h). A warning display in the exterior mirrors draws your