2009 Mercedes E-Class Owner's Manual - Page 166

Controls in detail Driving systems G Warning! Close attention to road and traffic conditions is imperative at all times, regardless of whether or not the Distronic is activated. Use of the Distronic can be dangerous on winding roads or in heavy traffic because conditions do not allow safe driving at a constant speed. The Distronic will not react to stationary objects in the roadway (e.g. a stopped vehicle in a traffic jam or a disabled vehicle). The Distronic will also not respond to oncoming vehicles. Switch off the Distronic: Rwhen changing from the left to the right lane if vehicles are moving more slowly in the left lane Rwhen entering a turn lane or highway off ramp Rin complex driving situations, such as in highway construction zones In these situations, the Distronic will continue to maintain the set speed unless deactivated. The Distronic is designed and intended only to maintain a set speed and keep a set distance from moving objects in front of it. 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. 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. 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. Distronic displays in the speedometer 1 Set speed If the Distronic is activated, one or two cruise control speed segments come on around the set speed. The vehicle speed displayed on the speedometer can briefly vary from the speed setting on the Distronic system. 164