2007 Mercedes C-Class Owner's Manual - Page 386

Practical hints Battery Charging and reinstalling the battery Charge battery in accordance with the instructions of the battery charger manufacturer. Reinstall the charged battery. Follow the previously described steps in reverse order. i The following procedures must be carried out following any interruption of battery power (e.g. due to reconnection): Set the clock ( page 136). Vehicles with COMAND*: See COMAND operator's manual. Synchronize side windows ( page 222). Synchronize tilt/sliding sunroof* ( page 226). Warning! G Never charge a battery while still installed in the vehicle unless the accessory battery charge unit approved by Mercedes-Benz is being used. Gases may escape during charging and cause explosions that may result in paint damage, corrosion or personal injury. An accessory battery charge unit specially adapted for Mercedes-Benz vehicles and tested and approved by Mercedes-Benz is available, permitting the charging of the battery in its installed position. Contact an authorized Mercedes-Benz Center for information and availability. Charge battery in accordance with the separate instructions for the accessory battery charger. ! The battery, its filler caps and the battery ventilation hose must always be securely installed when the vehicle is in operation. Reconnecting the battery ! Always connect the battery in the order described below. Otherwise the vehicle's electronics can be damaged. Turn off all electrical consumers. Remove SmartKey from starter switch. 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. ! Never invert the terminal connections! Connect the battery positive lead and fasten its cover 3 ( page 384). Connect the battery negative lead 2 ( page 384). Reinstall the filter box ( page 383). 385