2007 Mercedes E-Class Owner's Manual - Page 466

Practical hints Jump starting Connect negative terminals 4 and 2 of the batteries with the second jumper cable. Clamp the cable to negative terminal 4 of the charged battery first. Start the engine of the disabled vehicle. You can now turn on the electrical consumers. Do not switch on the headlamps under any circumstances. Remove the jumper cables first from negative terminals 2 and 4 and then from positive terminals 1 and 3. You can now switch on the headlamps. Have the battery checked at the nearest authorized Mercedes-Benz Center. Warning! G Keep flames or sparks away from battery. Do not smoke. Observe all safety instructions and precautions when handling automotive batteries ( page 331). The battery is located in the trunk underneath the luggage box ( page 433). Only jump start the vehicle from the battery in the trunk. Make sure the two vehicles do not touch. Turn off all electrical consumers. Apply the parking brake ( page 62). Make sure the gear selector lever is set to position P. Open the trunk. 1 Positive terminal of discharged battery 2 Negative terminal of discharged battery 3 Positive terminal of charged battery 4 Negative terminal of charged battery Connect positive terminals 1 and 3 of the batteries with the jumper cable. Clamp cable to charged battery 3 first. ! Never invert the terminal connections! Start engine of the vehicle with the charged battery and run at idle speed. 465