2005 Mercedes CLK-Class Owner's Manual - Page 424

Practical hints Battery Charging and reinstalling battery Reconnecting the battery i The following procedures must be carried out following any interruption of battery power (e.g. due to reconnecting): Set the clock ( page 151) (vehicles with COMAND*: see COMAND operator's manual). Resynchronize the side windows ( page 250). Resynchronize the tilt/sliding sunroof* ( page 254). Batteries contain materials that can harm the environment if disposed of improperly. Large 12-volt storage batteries contain lead. Recycling of batteries is the preferred method of disposal. Many states require sellers of batteries to accept old batteries for recycling. Warning! G Turn off all electrical consumers. Remove SmartKey from starter switch. Vehicles with KEYLESS-GO*: Press the start/stop button until the engine shuts off. Open the driver's door. Connect the battery positive lead and fasten its cover 2. Connect the battery negative lead. Never charge a battery while still installed in the vehicle. Gases may escape during charging and cause explosions that may result in paint damage, corrosion or personal injury. Charge battery in accordance with the instructions of the battery charger manufacturer. Reinstall the charged battery. Follow the previously described steps in reverse order. ! NEVER invert the terminal connections! Reinstall the filter box ( page 420). ! The battery, its filler caps and the vent tube must always be securely installed when the vehicle is in operation. 422