2008 Mercedes CL-Class Owner's Manual - Page 695

Practical hints Replacing wiper blades Warning! G ! To avoid damage to the hood: The wiper arms should only be folded forward when in the vertical position. Never open the hood when the wiper arm is folded forward. Placing wiper arms in vertical position For safety reasons, switch off wipers and remove SmartKey from starter switch (vehicles with KEYLESS-GO*: Make sure the vehicle's on-board electronics have status 0) before replacing a wiper blade. Otherwise, the wiper motor could suddenly turn on and cause injury. ! 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. Do not allow the wiper arms to contact the windshield glass without a wiper blade inserted. Wiper blades in vertical position Warning! G Wiper blades are components that are subject to wear and tear. Replace the wiper blades twice a year, preferably in the spring and fall. Otherwise the front window will not be properly wiped. As a result, you may not be able to observe surrounding traffic conditions and could cause an accident. For your convenience, we recommend that you have this work carried out by an authorized Mercedes-Benz Center. Make sure the hood is fully closed. Vehicles with SmartKey Turn SmartKey in starter switch position 1. Turn combination switch to wiper setting u ( page 400). With wiper arm in vertical position, turn the SmartKey in starter switch to position 0. 694