2002 Mercedes CL-Class Owner's Manual - Page 357

Instruments and controls Battery Operation Driving Instrument cluster display Practical hints Car care Technical data Index 354 While the engine is running the battery terminal clamps must not be loosened or detached, otherwise the generator and other electronic components would be damaged. Note: The selector lever will remain locked in position "P" and the electronic key cannot be turned in the starter switch, if the vehicle battery is disconnected or discharged. After reconnecting the battery also set the clock (see COMAND operator's manual) resynchronize the express feature of the power windows (see page 185), the sliding/pop-up roof (see page 188), and the electronic stability program (see page 279). Battery recycling Batteries contain materials that can harm the environment with improper disposal. 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.