2003 Mercedes CLK-Class Owner's Manual - Page 330

Practical hints Battery Disconnecting the battery Turn off all electrical consumers. Open the hood ( page 253). Remove the filter box. Disconnect battery negative lead 1. Remove cover 2 from the positive terminal. Disconnect the battery positive lead. Removing the batteries Remove the screw securing the battery. Remove the battery support and bracket. Take out the battery. Charging and reinstalling batteries Charge battery in accordance with the instructions of the battery charger manufacturer. Reinstall the charged battery. Follow the previously described steps in reverse order. Warning! Warning! With a disconnected battery G you will no longer be able to turn the key in the starter switch and pressing the KEYLESS-GO* start/stop button (if so equipped) on the selector lever will have no effect the selector lever will remain locked in position P G 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. 1 Negative terminal 2 Cover over positive terminal 330