Owner's Manual
Page 226
...with the vehicle and screw it to run for a few minutes at the front or rear of the vehicle to the engine or body ground of the BMW. Avoid lateral loading of the assisting vehicle. Attach the second terminal clamp of the minus/- jumper cable to the negative terminal of... assistance 4. Your BMW has a special nut as body ground or negative pole. Attach one terminal clamp of the minus/- jumper cable to the negative terminal of the battery or to screw thread Rectangular cover panel in . Use only the tow fitting provided with the onboard tool kit underneath the floor ...
...with the vehicle and screw it to run for a few minutes at the front or rear of the vehicle to the engine or body ground of the BMW. Avoid lateral loading of the assisting vehicle. Attach the second terminal clamp of the minus/- jumper cable to the negative terminal of... assistance 4. Your BMW has a special nut as body ground or negative pole. Attach one terminal clamp of the minus/- jumper cable to the negative terminal of the battery or to screw thread Rectangular cover panel in . Use only the tow fitting provided with the onboard tool kit underneath the floor ...