2008 BMW 6 Series Owner's Manual - Page 231

There must not be any contact between the bodies of the two vehicles; otherwise, there is a danger of short circuiting.< 5. Attach the second end of the cable to the negative terminal of the battery or to the engine or body ground of the vehicle to be started. Connecting jumper cables To avoid personal injury from sparks, follow this sequence when connecting jumper cables.< In your BMW, the so-called jump-starting terminal for jump starting in the engine compartment serves as a positive terminal for the battery, also refer to engine compartment overview on page 217. The cover cap is marked with a +. 1. Fold open the cover of the BMW jumpstarting terminal. To do so, pull the tab. Starting engine Controls Reference Mobility Communications Entertainment Navigation Driving tips 1. Start the engine on the assisting vehicle and allow it to run at idle for several minutes at slightly increased speed. 2. Start the engine on the other vehicle in the usual way. If the first starting attempt is not successful, wait a few minutes before another attempt in order to allow the discharged battery to recharge. 3. Let the engines run for a few minutes. 4. Disconnect the jumper cables by reversing the connection sequence. Check the battery and recharge if necessary. Never use spray fluids to start the engine.< Tow-starting and towing 2. Attach one end of the jumper cable plus/+ to the positive terminal of the battery or a jump-starting terminal of the vehicle providing assistance. 3. Attach the second end of the cable to the positive terminal of the battery or to a jumpstarting terminal of the vehicle to be started. 4. Attach one end of the jumper cable minus/- to the negative terminal of the battery or to an engine or body ground of the vehicle providing assistance. Your BMW has a special nut as body ground or negative terminal. Observe applicable laws and regulations for tow-starting and towing.< Do not transport any passengers other than the driver in a vehicle that is being towed.< Using tow fitting The threaded tow fitting is stored in the tool kit mounted on the inside of the luggage compartment under the floor mat, refer to page 223, and should always remain in the vehicle. It can be screwed in at the front or rear of the BMW. Only use the tow fitting that comes with the vehicle and screw it in as far as possible. Use the tow fitting for towing only on roads. Avoid lateral loading of the tow fitting, e.g. do not lift the vehicle by the tow fitting. Otherwise, the tow fitting and vehicle can be damaged.< 229 Online Edition for Part no. 01 41 0 014 242 - © 08/07 BMW AG At a glance