2009 Mercedes SL-Class Owner's Manual - Page 165

Controls in detail Climate control system X Have the Parktronic system checked at an authorized Mercedes-Benz Center as soon as possible. 1 Parktronic switch 2 Indicator lamp X Switching off Parktronic system: Press Parktronic switch 1. Indicator lamp 2 comes on. Switching on Parktronic system: Press Parktronic switch 1 again. If only the red distance segments illuminate and no acoustic warning sounds, the Parktronic system sensors are dirty (e.g. dirt, ice, snow and slush) or there is an interference from other radio or ultrasonic signals (e.g. truck air brakes, car wash, or jackhammers). The Parktronic system will automatically switch off after 20 seconds and the indicator lamp in the Parktronic switch comes on. X Switch off the ignition. X X X Clean the Parktronic system sensors (Y page 247). Switch on the ignition. or Check the Parktronic system operation at another location to rule out interference from outside radio or ultrasonic signals. X Parktronic system malfunction There is a malfunction in the Parktronic system, if only the red distance segments illuminate and an acoustic warning sounds. The Parktronic system will automatically switch off after 20 seconds and the indicator lamp 2 in the Parktronic switch 1 comes on. Z 163