Your plugs need to be re-arranged. Sounds like with the current setup you got city lights for low beam and high beam is getting no juice. The reason there are only 2 lines to the corner is because european cars do not have a light in the corner that turns on with the headlight, instead they have a 5 watt bulb in the main reflector of the assembly that comes on. Here are your instructions for re-wiring the plugs. Chances are you still have the 6-hole plugs but if not you can use the ones attached to the tail lights.
Here is the plug wiring diagram.