When I try to start my 206 1.4 HDi nothing happens, the ignition light and everything else come on but other than what sounds like a relay kicking in there is nothing, even the solenoid doesn't make a sound. It diod this a couple of weeks ago but after a few attempts it started but tonight i had to push start it. it starts ok now but is bound to let me down again. Anyone know what the problem is, the battery leads seem ok