2004 Mercedes ML-Class Owner's Manual - Page 237

Operation Vehicle care Cleaning the Parktronic* system sensors To prevent scratches, never apply strong force and use only a soft, non-scratchy cloth when cleaning the sensor. Do not attempt to wipe dirty sensors with a dry cloth or sponge. Wiper blades Fold wiper arm forward. Warning! 1 Parktronic system sensors Use a mild car wash detergent, such as Mercedes-Benz approved Car Shampoo, with plenty of water to clean the sensors 1. When using a steam cleaner or power washer, aim nozzle only briefly from a minimum distance of 4 in (10 cm) at sensors 1. ! Fold the windshield wiper arms back onto the windshield before turning the key in the steering lock. Hold on to the wiper when folding the wiper arm back. If released, the force of the impact from the tensioning spring could crack the windshield. Window cleaning Fold wiper arms forward. Warning! G For safety reasons, switch off wipers and remove key from steering lock before cleaning the wiper blades, otherwise the wiper motor might suddenly turn on and cause injury. G Clean the wiper blade inserts with a clean cloth and detergent solution. For safety reasons, switch off wipers and remove key from steering lock before cleaning the wiper blades, otherwise the wiper motor might suddenly turn on and cause injury. Use a window cleaning solution on all glass surfaces. An automotive glass cleaner is recommended. An automotive glass cleaner is recommended. 237