2006 Mercedes S-Class Owner's Manual - Page 410

Practical hints Battery Disconnecting the battery Turn off all electrical consumers. Open the trunk ( page 103). Read and observe safety instructions and precautions ( page 408). Remove the battery cover 1. Removing the battery Warning! Remove the screw securing the battery. Remove the battery support and bracket. Take out the 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. 2 Positive terminal 3 Negative terminal Use a 10-mm open-end wrench to disconnect the battery negative lead 3. Remove cover 2 from the positive terminal. Disconnect the battery positive lead. 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. 409