2008 Mercedes S-Class Owner's Manual - Page 590

Operation Vehicle care Headlamps, tail lamps, side markers, turn signal lenses Use a mild car wash detergent, such as Mercedes-Benz approved Car Shampoo, with plenty of water. Cleaning the DISTRONIC Plus*/ PRE-SAFE® Brake* system sensors (USA only) The sensors are integrated in the front bumpers and cannot be seen from the outside. Clean a wide area of the bumpers surrounding the sensor 2. ! Only use window cleaning solutions that are suitable for plastic lamp lenses. Window cleaning solutions which are not suitable may damage the plastic lamp lenses of the headlamps. Therefore, do not use abrasives, solvents or cleaners that contain solvents. Never apply strong force and only use a soft, non-scratching cloth when cleaning the lenses. Do not attempt to wipe dirty lenses with a dry cloth or sponge. Otherwise you may scratch or damage the lens surface. ! To prevent scratches or damage, never apply strong force and only use a soft, non-scratching cloth when cleaning the sensor cover and/or bumper area near sensors. Do not attempt to wipe dirty sensors and/or bumper with a dry cloth or sponge. Cleaning the Parktronic* system sensors 1 Sensor cover 2 Bumper area near sensors Switch off the ignition ( page 344). Use a mild car wash detergent, such as Mercedes-Benz approved Car Shampoo, with plenty of water and a non-scratching cloth to clean sensor cover 1. 1 Parktronic system* sensors in front bumper 589