2009 Mercedes CL-Class Owner's Manual - Page 372

Controls in detail Driving 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. 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 sensor system, the following functions are deactivated: RPark Assist RBAS For cleaning the driving systems sensors, see (Y page 465). Plus (Y page 66) Brake (Y page 72) Plus (Y page 350) RPRE-SAFE® RDISTRONIC RAdvanced RBlind Parking Guidance (Y page 373) Spot Assist (Y page 382) ! 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 the Park Assist may not function properly. ! 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 or switch off the radar sensors with the instrument cluster control system to prevent possible malfunction. The Park Assist is an electronic parking aid with radar sensors that helps you while parking. It visually and audibly indicates the relative distance between the vehicle and an obstacle. The Park Assist is automatically activated when the engine is running and the automatic transmission is in drive position D, reverse gear R or neutral position N. The Park Assist deactivates at speeds over approximately 10 mph (16 km/h). At lower speeds the Parktronic system turns on again. The Park Assist is also switched off when you set the automatic transmission into park position P or switch off the engine. While the automatic transmission is in neutral position N, the Park Assist is switched off if you secure the vehicle in place with the electronic parking brake. The Park Assist monitors the surroundings of your vehicle with four sensors in the front bumper and two sensors in the rear bumper. Range of the sensors The sensors of the Park Assist system are integrated in the front and rear bumpers. Make sure that the bumpers are clear of dirt, ice and slush in the area of the sensors, as otherwise, Park Assist may not function properly, see (Y page 465). 370