2007 Mercedes GL-Class Owner's Manual - Page 522

Practical hints Replacing wiper blades Installing Check if the wiper blade is securely fastened. Fold the wiper arm backward to rest on the windshield. Make sure you hold on to the wiper arm when folding it back. Rear wiper blade ! 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 rear window. Do not allow the wiper arm to contact the rear window glass without a wiper blade inserted. Make sure the wiper blade is properly installed. Improperly installed wiper blades may cause rear window damage. For your convenience, we recommend that you have this work carried out by an authorized Mercedes-Benz Light Truck Center. 1 Installing 2 Tab 3 Attachment 4 Guide tab 5 Cover Slide the wiper blade into attachment 3 in direction of arrow 1. Make sure guide tab 4 will be placed under cover 5 when fully inserting the wiper blade into attachment. Let tab 2 latch into both recesses of attachment 3. Warning! G 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 motor could suddenly turn on and cause injury. 521