2008 Mercedes SL-Class Owner's Manual - Page 54

Getting started Driving Starting with KEYLESS-GO* Warning! For information on turning off the engine with KEYLESS-GO, see "Turning off with KEYLESS-GO*" ( page 64). Starting difficulties If the engine does not start as described, carry out the following steps: If you are starting the engine with the SmartKey: Turn SmartKey in starter switch to position 0 and repeat starting procedure. If you are starting the engine with KEYLESS-GO*: Close any doors that may be open to allow for better detection of the SmartKey with KEYLESS-GO*. Or: Start the engine with the SmartKey as radio signals from another source may be interfering with the SmartKey with KEYLESS-GO*. G As long as the SmartKey with KEYLESS-GO is in your vehicle, the vehicle can be started. Therefore, never leave children unattended in the vehicle, as they could otherwise accidentally start the engine. When leaving the vehicle, always take the SmartKey with KEYLESS-GO with you and lock the vehicle. Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. KEYLESS-GO start/stop button 1 USA only 2 Canada only Make sure the gear selector lever is set to P. Depress the brake pedal during the starting procedure. Do not depress accelerator. Press the KEYLESS-GO start/stop button once. The engine starts if the SmartKey with KEYLESS-GO is in the vehicle. You can start your vehicle without the SmartKey in the starter switch using the KEYLESS-GO start/stop button on the gear selector lever. The SmartKey with KEYLESS-GO must be located in the vehicle. 54