2007 Mercedes G-Class Owner's Manual - Page 401

Practical hints Jump starting The jump-start terminals are located on the driver's side of the engine compartment. Start the engine of the vehicle with the charged battery and run at idle speed. Connect negative terminal 3 and the negative terminal of the charged battery with the jumper cable. Clamp the cable to 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. 1 Cover 2 Positive (+) terminal 3 Negative (-) terminal Open cover 1 of the positive terminal of both vehicles. Remove the jumper cables first from the negative terminals on each battery and then from the positive terminals on each battery. You can now switch on the headlamps. Have the battery checked at the nearest authorized Mercedes-Benz Light Truck Center. Warning! G Keep flames or sparks away from battery. Do not smoke. Observe all safety instructions and precautions when handling automotive batteries ( page 396). Make sure the two vehicles do not touch. Apply the parking brake ( page 62). Move the gear selector lever to park position P. Turn off all electrical consumers. Open the hood ( page 267). ! Never invert the terminal connections! Connect positive terminal 2 and the positive terminal of the charged battery with the jumper cable. Clamp the cable to the charged battery first. 400