how can i fix my lights/indicators?

i have a berlingo multispace 07 plate when i switch on my ignition the head lights come on and then go off..i start the car turn left and indicator works turn right goes about 4 times stops and my headlights come on turn the indicator to center the lights go off...when i turn my lights on both indicators work correctly left/right all lights work correctly can anyone help please

kev
April 2011