2006 Mercedes CLS-Class Owner's Manual - Page 433

Practical hints Battery Disconnecting the battery Warning! G Warning! G Do not place metal objects on the battery as this could result in a short circuit. Use leak-proof battery only to avoid the risk of acid burns in the event of an accident. The electro-hydraulic brake system requires electrical power to operate. A malfunction in the vehicle's power supply or electrical system may impair brake system operation and switch it into its emergency operation mode. The same applies if battery is disconnected. To brake, the driver must then apply significantly greater brake pedal pressure and depress the pedal much further to obtain the expected braking effect. If necessary, apply full pressure to the brake pedal. Brakes may only be applied to the front wheels. Stopping distance is increased! Adjust your driving style accordingly. For more information, refer to "Electro-hydraulic brake system" ( page 89). Warning! With a disconnected battery G you will no longer be able to turn the SmartKey in the starter switch and pressing the KEYLESS-GO* start/stop button on the gear selector lever will have no effect the gear selector lever will remain locked in position P Depress parking brake firmly or move gear selector lever to position P. 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. 432