2008 Mercedes C-Class Owner's Manual - Page 448

Practical hints Battery Warning! G Failure to follow these instructions can result in severe injury or death. Observe all safety instructions and precautions when handling automotive batteries ( page 446). Never lean over batteries while connecting, you might get injured. Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or clothing. In case it does, immediately flush affected area with water and seek medical help if necessary. A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or sparks away from battery, avoid improper connection of jumper cables, smoking, etc. ! Never loosen or detach battery terminal clamps while the engine is running or the SmartKey is in the starter switch. Otherwise the alternator and other electronic components could be severely damaged. Have the battery checked regularly at an authorized Mercedes-Benz Center. Refer to Maintenance Booklet for maintenance intervals or contact an authorized Mercedes-Benz Center for further information. Warning! G 1 Filter box 2 Clamps Removing filter box: Release clamps 2. Remove filter box. Installing filter box: Insert filter box properly. Secure it with clamps 2. Do not place metal objects on the battery as this could result in a short circuit. Use leak-proof batteries only to avoid the risk of acid burns in the event of an accident. ! Do not connect any consumers directly to the battery or it will be discharged. 447