2009 Mercedes CL-Class Owner's Manual - Page 75

Safety and security Driving safety systems permitted. Do not tamper with, alter, or use in any non-approved way. Any unauthorized modification to this device could void the user's authority to operate the equipment. PRE-SAFE® will only assist you by initiating braking automatically when the driver and front passenger have their seat belts fastened. Using the radar sensors, PRE-SAFE® Brake detects obstacles that are in your driving path for a sufficient period of time for the system to recognize it. If you approach a vehicle and PRE-SAFE® Brake has established that the distance to the vehicle ahead at your current speed is so close that PRE-SAFE® Brake will not be capable of slowing the vehicle sufficiently, the system will initially warn you visually and acoustically. When traveling in Canada in a vehicle not registered in Canada, you must switch off the radar sensor system (Y page 247). Canadian law does not permit the use of the radar sensor system for vehicles from outside of Canada. When you switch off the radar system, the following functions are deactivated: RPRE-SAFE® RBAS and vehicles driving offset from your vehicle center. When the distance to the forward vehicle is too small, the distance warning lamp l in the instrument cluster comes on. If you approach the forward vehicle very quickly, you will hear a warning signal. If you do not apply the brakes yourself or maneuver around a sensed obstacle, the vehicle will brake lightly automatically. PRESAFE® (Y page 56) is activated when the distance to the vehicle ahead at your current speed is so close that PRE-SAFE® Brake will not be capable of slowing the vehicle sufficiently. Brake Plus (Y page 350) Plus (Y page 66) Assist (Y page 369) Spot Assist (Y page 382) Parking Guidance (Y page 373) RDISTRONIC RPark RBlind RAdvanced G Warning! PRE-SAFE® Brake will only respond with brake assistance if it has clearly detected an object. Detection can be impeded by Rdirty or covered sensors Rsnowfall or heavy rain Rdisturbance from other radar sources Rstrong radar reflection such as in parking garages PRE-SAFE® uses radar signals that are not reflected well by narrow objects and absorptive materials. For this reason PRESAFE® will not react to persons, animals, and approaching traffic or cross-traffic. PRE-SAFE® may not detect narrow vehicles driving in front of you, such as motorcycles G Warning! PRE-SAFE® Brake brakes your vehicle with a maximum of 13 ft/s2 (4 m/s2). This corresponds to about 40% of the maximum deceleration ability of your vehicle. This automatic braking is intended only to initiate the braking if the driver has not already done so. The driver must apply the brakes in order to prevent a collision. PRE-SAFE® Brake applies the brake pedal automatically which results in the brake pedal moving. Therefore keep driver's foot Z 73