2006 Mercedes CL-Class Owner's Manual - Page 257

Controls in detail Useful features 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. Any unauthorized modification to this device could void the user's authority to operate the equipment. Infrared reflecting windshield Your vehicle is equipped with infrared reflecting glass which reduces the amount of radiated heat entering the interior through the windows. The infrared reflecting glass also prevents the transmission of signals through the glass by in-vehicle electronic devices (e.g. electronic toll collection devices). To allow the use of these devices in the vehicle, two infrared transparent areas (1 and 2) are placed in the windshield. 1 Mounting location for electronic toll collection devices (infrared transparent) 2 Infrared transparent area (pass-through for electronic signals) 3 31.5 in (80 cm) 4 19.0 in (48 cm) 5 1.75 in (4.5 cm) 256