2008 Mercedes S-Class Owner's Manual - Page 450

Controls in detail Driving systems i USA only: This device has been approved by the FCC as a "Vehicular Radar System". The radar sensor is intended for use in an automotive radar system only. Removal, tampering, or altering of the device will void any warranties, and is not permitted by the FCC. 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. ! The operational function of the Park Assist system can be affected by dirty sensors, especially at times of snow and ice. Make sure that the area on the bumpers around the sensors is free of dirt, ice and/or slush, otherwise Park Assist may not function properly, see "Cleaning the Park Assist* system sensors (USA only)" ( page 590). When travelling in Canada in a vehicle not registered in Canada, you must switch off the radar sensor system* ( page 282). Canadian law does not permit the use of the radar sensor system* ( page 282) for vehicles from outside of Canada. When you switch off the radar sensor system*, the following functions are deactivated: BAS Plus* ( page 69) DISTRONIC Plus* ( page 424) Park Assist PRE-SAFE® Brake* ( page 76) It visually and audibly indicates the relative distance between the vehicle and an obstacle. Park Assist is automatically activated when the engine is running and the transmission is in position D, R or N. The Park Assist system deactivates at speeds over approximately 11 mph. At lower speeds the Parktronic system turns on again. i Canada only: This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) this device must accept any interference received, including interference that may cause undesired operation of the device. Removal, tampering, or altering of the device will void any warranties, and is not 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. ! High-frequency sources such as toll stations, speed measuring systems, etc. can cause the Park Assist system to malfunction. You can switch off the Park Assist using the Park Assist button ( page 452) or switch off the radar sensors ( page 282) to prevent possible malfunction. Park Assist is an electronic parking aid with radar sensors that helps you while parking. 449