2008 Mercedes R-Class Owner's Manual - Page 334

Controls in detail Useful features i Upon completion of programming the integrated remote control, make sure you retain the hand-held remote control that came with the garage door opener, gate operator or other device. You may need it for use in other vehicles, for future programming of an integrated remote control, or simply for continued use as a hand-held remote control to operate the respective device in other situations. Reprogramming a single signal transmitter button To program a device using a signal transmitter button previously trained, follow these steps: Switch on the ignition ( page 39). Press and hold the desired signal transmitter button (2, 3 or 4). Do not release the button. Indicator lamp 1 will begin to flash after 20 seconds. Without releasing the signal transmitter button, proceed with programming starting with step 3. Operation of integrated remote control Switch on the ignition ( page 39). Select and press the appropriate integrated signal transmitter button (2, 3 or 4) to activate the remote controlled device. The integrated remote control transmitter continues to send the signal as long as the button is pressed - up to 20 seconds. Erasing the integrated remote control memory Switch on the ignition ( page 39). Simultaneously press and hold outer signal transmitter buttons 2 and 4, for approximately 20 seconds, until the indicator lamp 1 flashes rapidly. Do not hold for longer than 30 seconds. The codes of all three channels are erased. Programming tips If you are having difficulty programming the integrated remote control, here are some helpful tips: Check the frequency of the hand-held remote control 5 (typically located on the reverse side of the remote). The integrated remote control is compatible with radio-frequency devices operating between 280-390 MHz. Put a new battery in hand-held remote control 5. This will increase the likelihood of the hand-held remote control sending a faster and more accurate signal to the integrated remote control. While performing step 3, hold hand-held remote control 5 at different lengths and angles from the signal transmitter button (2, 3 or 4) you are programming. Attempt varying angles at the distance of 2 to 5 in (5 to 12 cm) away or the same angle at varying distances. i If you sell your vehicle, erase the codes of all three channels. 333